81_FR_50477 81 FR 50330 - Air Quality: Revision to the Regulatory Definition of Volatile Organic Compounds-Exclusion of 1,1,2,2-Tetrafluoro-1-(2,2,2-trifluoroethoxy) Ethane (HFE-347pcf2)

81 FR 50330 - Air Quality: Revision to the Regulatory Definition of Volatile Organic Compounds-Exclusion of 1,1,2,2-Tetrafluoro-1-(2,2,2-trifluoroethoxy) Ethane (HFE-347pcf2)

ENVIRONMENTAL PROTECTION AGENCY

Federal Register Volume 81, Issue 147 (August 1, 2016)

Page Range50330-50336
FR Document2016-17789

The Environmental Protection Agency (EPA) is taking direct final action to revise the regulatory definition of volatile organic compounds (VOC) under the Clean Air Act (CAA). This direct final action adds 1,1,2,2-Tetrafluoro-1-(2,2,2-trifluoroethoxy) ethane (also known as HFE-347pcf2; CAS number 406-78-0) to the list of compounds excluded from the regulatory definition of VOC on the basis that this compound makes a negligible contribution to tropospheric ozone (O<INF>3</INF>) formation.

Federal Register, Volume 81 Issue 147 (Monday, August 1, 2016)
[Federal Register Volume 81, Number 147 (Monday, August 1, 2016)]
[Rules and Regulations]
[Pages 50330-50336]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-17789]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 51

[EPA-HQ-OAR-2015-0041; FRL-9949-77-OAR]
RIN 2060-AR94


Air Quality: Revision to the Regulatory Definition of Volatile 
Organic Compounds--Exclusion of 1,1,2,2-Tetrafluoro-1-(2,2,2-
trifluoroethoxy) Ethane (HFE-347pcf2)

AGENCY: Environmental Protection Agency (EPA).

ACTION: Direct final rule.

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SUMMARY: The Environmental Protection Agency (EPA) is taking direct 
final action to revise the regulatory definition of volatile organic 
compounds (VOC) under the Clean Air Act (CAA). This direct final action 
adds 1,1,2,2-Tetrafluoro-1-(2,2,2-trifluoroethoxy) ethane (also known 
as HFE-347pcf2; CAS number 406-78-0) to the list of compounds excluded 
from the regulatory definition of VOC on the basis that this compound 
makes a negligible contribution to tropospheric ozone (O3) 
formation.

DATES: This rule is effective on September 30, 2016 without further 
notice, unless the EPA receives adverse comment by August 31, 2016. If 
the EPA receives adverse comment, we will publish a timely withdrawal 
in the Federal Register informing the public that the rule will not 
take effect.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-HQ-
OAR-2015-0041, at http://www.regulations.gov. Follow the online 
instructions for submitting comments. Once submitted, comments cannot 
be edited or removed from Regulations.gov. The EPA may publish any 
comment received to its public docket. Do not submit electronically any 
information you consider to be Confidential Business Information (CBI) 
or other information whose disclosure is restricted by statute. 
Multimedia submissions (audio, video, etc.) must be accompanied by a 
written comment. The written comment is considered the official comment 
and should include discussion of all points you wish to make. The EPA 
will generally not consider comments or comment contents located 
outside of the primary submission (i.e. on the web, cloud, or other 
file sharing system). For additional submission methods, the full EPA 
public comment policy, information about CBI or multimedia submissions, 
and general guidance on making effective comments, please visit http://www2.epa.gov/dockets/commenting-epa-dockets.

FOR FURTHER INFORMATION CONTACT: Souad Benromdhane, Office of Air 
Quality Planning and Standards, Health and Environmental Impacts 
Division, Mail Code C539-07, Environmental Protection Agency, Research 
Triangle Park, NC 27711; telephone: (919) 541-4359; fax number: (919) 
541-5315; email address: [email protected].

SUPPLEMENTARY INFORMATION: 

Table of Contents

I. Why is the EPA using a direct final rule?
II. Does this action apply to me?
III. Background
    A. The EPA's VOC Exemption Policy
    B. Petition To List HFE-347pcf2 as an Exempt Compound
IV. The EPA's Assessment of the Petition
    A. Contribution to Tropospheric Ozone Formation
    B. Contribution to Stratospheric Ozone Depletion
    C. Toxicity
    D. Contribution to Climate Change
    E. Conclusions
V. Direct Final Action
VI. Statutory and Executive Order Reviews
    A. Executive Order 12866: Regulatory Planning and Review and 
Executive

[[Page 50331]]

Order 13563: Improving Regulation and Regulatory Review
    B. Paperwork Reduction Act (PRA)
    C. Regulatory Flexibility Act (RFA)
    D. Unfunded Mandates Reform Act (UMRA)
    E. Executive Order 13132: Federalism
    F. Executive Order 13175: Consultation and Coordination With 
Indian Tribal Governments
    G. Executive Order 13045: Protection of Children From 
Environmental Health and Safety Risks
    H. Executive Order 13211: Actions Concerning Regulations That 
Significantly Affect Energy Supply, Distribution or Use
    I. National Technology Transfer and Advancement Act (NTTAA)
    J. Executive Order 12898: Federal Actions To Address 
Environmental Justice in Minority Populations and Low-Income 
Populations
    K. Congressional Review Act (CRA)
    L. Judicial Review

I. Why is the EPA using a direct final rule?

    The EPA is publishing this direct final rule without a prior 
proposed rule because we view this as a noncontroversial action and 
anticipate no adverse comment. This action revises the EPA's regulatory 
definition of VOC for purposes of preparing state implementation plans 
(SIPs) to attain the national ambient air quality standards (NAAQS) for 
O3 under title I of the CAA by adding HFE-347pcf2 to the 
list of compounds excluded from the regulatory definition of VOC on the 
basis that this compound makes a negligible contribution to 
tropospheric O3 formation. However, in the ``Proposed 
Rules'' section of this Federal Register, we are publishing a separate 
document that will serve as the proposed rule to make this revision to 
the regulatory definition of VOC if adverse comments are received on 
this direct final rule. We will not institute a second comment period 
on this action. Any parties interested in commenting must do so at this 
time. For further information about commenting on this rule, see the 
ADDRESSES section of this document.
    If the EPA receives adverse comment, we will publish a timely 
withdrawal in the Federal Register informing the public that this 
direct final rule will not take effect. We would address all public 
comments in any subsequent final rule based on the proposed rule.

II. Does this action apply to me?

    Entities potentially affected by this direct final rule include, 
but are not necessarily limited to: State and local air pollution 
control agencies that adopt and implement regulations to control air 
emissions of VOC; and industries manufacturing and/or using HFE-347pcf2 
as a precision cleaning agent to remove contaminants including oil, 
flux, and fingerprints from items like medical devices, artificial 
implants, crucial military and aerospace items, electric components, 
printed circuit boards, optics, jewelry, ball bearings, aircraft 
guidance systems, film, relays, and a variety of metal components, 
among others.

III. Background

A. The EPA's VOC Exemption Policy

    Tropospheric O3, commonly known as smog, is formed when 
VOC and nitrogen oxides (NOX) react in the atmosphere in the 
presence of sunlight. Because of the harmful health effects of 
O3, the EPA and state governments limit the amount of VOC 
that can be released into the atmosphere. Volatile organic compounds 
form O3 through atmospheric photochemical reactions, and 
different VOC have different levels of reactivity. That is, different 
VOC do not react to form O3 at the same speed or do not form 
O3 to the same extent. Some VOC react slowly or form less 
O3; therefore, changes in their emissions have limited 
effects on local or regional O3 pollution episodes. It is 
the EPA's policy that organic compounds with a negligible level of 
reactivity should be excluded from the regulatory definition of VOC in 
order to focus VOC control efforts on compounds that significantly 
increase O3 concentrations. The EPA also believes that 
exempting such compounds creates an incentive for industry to use 
negligibly reactive compounds in place of more highly reactive 
compounds that are regulated as VOC. The EPA lists compounds that it 
has determined to be negligibly reactive in its regulations as being 
excluded from the regulatory definition of VOC (40 CFR 51.100(s)).
    The CAA requires the regulation of VOC for various purposes. 
Section 302(s) of the CAA specifies that the EPA has the authority to 
define the meaning of ``VOC'' and, hence, what compounds shall be 
treated as VOC for regulatory purposes. The policy of excluding 
negligibly reactive compounds from the regulatory definition of VOC was 
first laid out in the ``Recommended Policy on Control of Volatile 
Organic Compounds'' (42 FR 35314, July 8, 1977) (from here forward 
referred to as the 1977 Recommended Policy) and was supplemented 
subsequently with the ``Interim Guidance on Control of Volatile Organic 
Compounds in Ozone State Implementation Plans'' (70 FR 54046, September 
13, 2005) (from here forward referred to as the 2005 Interim Guidance). 
The EPA uses the reactivity of ethane as the threshold for determining 
whether a compound has negligible reactivity. Compounds that are less 
reactive than, or equally reactive to, ethane under certain assumed 
conditions may be deemed negligibly reactive and, therefore, suitable 
for exemption from the regulatory definition of VOC. Compounds that are 
more reactive than ethane continue to be considered VOC for regulatory 
purposes and, therefore, are subject to control requirements. The 
selection of ethane as the threshold compound was based on a series of 
smog chamber experiments that underlay the 1977 policy.
    The EPA has used three different metrics to compare the reactivity 
of a specific compound to that of ethane: (i) The rate constant for 
reaction with the hydroxyl radical (OH) (known as kOH); (ii) 
the maximum incremental reactivity (MIR) on a reactivity per unit mass 
basis; and (iii) the MIR expressed on a reactivity per mole basis. 
Differences between these three metrics are discussed below.
    The kOH is the rate constant of the reaction of the 
compound with the OH radical in the air. This reaction is often, but 
not always the first and rate-limiting step in a series of chemical 
reactions by which a compound breaks down in the air and contributes to 
O3 formation. If this step is slow, the compound will likely 
not form O3 at a very fast rate. The kOH values 
have long been used by the EPA as metrics of photochemical reactivity 
and O3-forming activity, and they have been the basis for 
most of the EPA's early exemptions of negligibly reactive compounds 
from the regulatory definition of VOC. The kOH metric is 
inherently a molar-based comparison, i.e., it measures the rate at 
which molecules react.
    The MIR, both by mole and by mass, is a more updated metric of 
photochemical reactivity derived from a computer-based photochemical 
model, and has been used as a consideration of reactivity since 1995. 
This metric considers the complete O3-forming activity of a 
compound over multiple hours and through multiple reaction pathways, 
not merely the first reaction step with OH. Further explanation of the 
MIR metric can be found in Carter (1994), ``Development of ozone 
reactivity scales for volatile organic compounds.''
    The EPA has considered the choice between a molar or mass basis for 
the comparison to ethane in past rulemakings and guidance. In the 2005 
Interim Guidance, the EPA stated:


[[Page 50332]]


[A] comparison to ethane on a mass basis strikes the right balance 
between a threshold that is low enough to capture compounds that 
significantly affect ozone concentrations and a threshold that is 
high enough to exempt some compounds that may usefully substitute 
for more highly reactive compounds.
    When reviewing compounds that have been suggested for VOC-exempt 
status, EPA will continue to compare them to ethane using 
kOH expressed on a molar basis and MIR values expressed 
on a mass basis.

    The 2005 Interim Guidance also noted that concerns have sometimes 
been raised about the potential impact of a VOC exemption on 
environmental endpoints other than O3 concentrations, 
including fine particle formation, air toxics exposures, stratospheric 
O3 depletion, and climate change. The EPA has recognized, 
however, that there are existing regulatory and non-regulatory programs 
that are specifically designed to address these issues, and the EPA 
continues to believe in general that the impacts of VOC exemptions on 
environmental endpoints other than O3 formation will be 
adequately addressed by these programs. The VOC exemption policy is 
intended to facilitate attainment of the O3 NAAQS. In 
general, VOC exemption decisions will continue to be based solely on 
consideration of a compound's contribution to O3 formation. 
However, if the EPA determines that a particular VOC exemption is 
likely to result in a significant increase in the use of a compound and 
that the increased use would pose a significant risk to human health or 
the environment that would not be addressed adequately by existing 
programs or policies, then the EPA may exercise its judgment 
accordingly in deciding whether to grant an exemption.

B. Petition To List HFE-347pcf2 as an Exempt Compound

    Asahi Glass Company, AGC Chemicals America, Inc. submitted a 
petition to the EPA on February 5, 2007, requesting that 1,1,2,2-
Tetrafluoro-1-(2,2,2-trifluoroethoxy) ethane (HFE-347pcf2; CAS number 
406-78-0) be exempted from the regulatory definition of VOC. The 
petition was based on the argument that HFE-347pcf2 has low reactivity 
relative to ethane. The petitioner indicated that HFE-347pcf2 may be 
used in a variety of applications as a precision cleaning agent to 
remove contaminants including oil, flux, and fingerprints from items 
like medical devices, artificial implants, crucial military and 
aerospace items, electric components, printed circuit boards, optics, 
jewelry, ball bearings, aircraft guidance systems, film, relays, and a 
variety of metal components, among others.
    To support its petition, AGC Chemicals America, Inc. referenced 
several documents, including two peer-reviewed journal articles on HFE-
347pcf2's reaction rates (Tokuhashi et al., 2000; Pitts et al, 1983). 
In 2014, AGC provided a supplemental technical report on the maximum 
incremental reactivity of HFE-347pcf2 (Carter, 2014). According to this 
report, the maximum incremental reactivity of HFE-347pcf2 ranges 
between 0.0007 g O3/g HFE-347pcf2 (best estimate) and 0.0013 
g O3/g HFE-347pcf2 (high reactivity estimate) on the mass-
based MIR scale. This reactivity rate is much lower than that of ethane 
(0.28 g O3/g ethane), the compound that the EPA has used for 
comparison to define ``negligible'' O3 reactivity for the 
purpose of exempting compounds from the regulatory definition of VOC. 
The rate constant for the gas-phase reaction of OH radicals with HFE-
347pcf2 (kOH) has been measured to be 9.16 x 
10-15 cm\3\/molecule-sec at ~298 K (Pitts et al., 1983, 
Tokuhashi et al., 2000). Based on the measured reactivity rate of HFE-
347pcf2 (Pitts et al., 1983), HFE-347pcf2 has a smaller kOH 
than ethane (kOH of ethane = 2.4 x 10-13 cm\3\/
molecule-sec at ~298 K) and, therefore, is less reactive than ethane.
    To address the potential for stratospheric O3 impacts, 
the petitioner contended that, given the atmospheric lifetime of HFE-
347pcf2 and that it does not contain chlorine or bromine, it is not 
expected to contribute to the depletion of the stratospheric 
O3 layer.

IV. The EPA's Assessment of the Petition

    The EPA is taking direct final action to respond to the petition by 
exempting HFE-347pcf2 from the regulatory definition of VOC. This 
action is based on consideration of the compound's low contribution to 
tropospheric O3 and the low likelihood of risk to human 
health or the environment. In this case, the EPA considered issues of 
contribution to stratospheric O3 depletion, toxicity, and 
climate change. Additional information on these topics is provided in 
the following sections.

A. Contribution to Tropospheric Ozone Formation

    The reaction rate of HFE-347pcf2 with the OH radical 
(kOH) has been measured to be 9.16 x 10-15 cm\3\/
molecule-sec (Tokuhashi et al., 2000); other reactions with 
O3 and the nitrate radical were negligibly small. The 
corresponding reaction rate of ethane with OH is 2.4 x 10-13 
cm\3\/molecule-sec (Atkinson et al., 2006).
    The overall atmospheric reactivity of HFE-347pcf2 was not studied 
in an experimental smog chamber, but the chemical mechanism derived 
from other chamber studies (Carter, 2011) was used to model the 
complete formation of O3 for an entire single day under 
realistic atmospheric conditions (Carter, 2014). In 2014, Carter 
calculated a MIR value of 0.0007 to 0.0013 g O3/g VOC for 
HFE-347pcf2 for ``averaged conditions,'' versus 0.28 g O3/g 
VOC for ethane.
    Table 1 presents the three reactivity metrics for HFE-347pcf2 as 
they compare to ethane.

                                 Table 1--Reactivities of Ethane and HFE-347pcf2
----------------------------------------------------------------------------------------------------------------
                                                                                Maximum
                                                                              incremental           Maximum
                      Compound                            kOH (cm\3\/      reactivity (MIR)       incremental
                                                         molecule-sec)      (g O3/mole VOC)    reactivity (MIR)
                                                                                                 (g O3/g VOC)
----------------------------------------------------------------------------------------------------------------
Ethane..............................................       2.4 x 10-\13\                 8.4                0.28
HFE-347pcf2.........................................      9.16 x 10-\15\           0.14-0.26       0.0007-0.0013
----------------------------------------------------------------------------------------------------------------
Notes:
1. kOH value at 298 K for ethane is from Atkinson et al., 2006 (page 3626).
2. kOH value at 298 K for HFE-347pcf2 is from Tokuhashi, 2000.
3. Mass-based MIR value (g O3/g VOC) of ethane is from Carter, 2011.
4. Mass-based MIR value (g O3/g VOC) of HFE-347pcf2 is from a supplemental report by Carter, 2014.
5. Molar-based MIR (g O3/mole VOC) values were calculated from the mass-based MIR (g O3/g VOC) values using the
  number of moles per gram of the relevant organic compound.


[[Page 50333]]

    The data in Table 1, shows that HFE-347pcf2 has a significantly 
lower kOH value than ethane, meaning that it initially 
reacts less quickly in the atmosphere than ethane. Also, a molecule of 
HFE-347pcf2 is less reactive than a molecule of ethane in terms of 
complete O3-forming activity as shown by the molar-based MIR 
(g O3/mole VOC) values. Additionally, one gram of HFE-
347pcf2 has a lower capacity than one gram of ethane to form 
O3. Thus, following the 2005 Interim Guidance, HFE-347pcf2 
is eligible to be exempted from the regulatory definition of VOC on the 
basis of kOH and both the mole- and mass-based MIR.

B. Contribution to Stratospheric Ozone Depletion

    HFE-347pcf2 is unlikely to contribute to the depletion of the 
stratospheric O3 layer. The O3 depletion 
potential (ODP) of HFE-347pcf2 is expected to be negligible based on 
several lines of evidence: The absence of chlorine or bromine from the 
compound, the expected initial reactions described in Carter (2008), 
and the general theory supporting the estimated mechanisms of its 
reactivity with the hydroxyl OH discussed in Carter (2011).
    The Significant New Alternatives Policy (SNAP) program is the EPA's 
program to evaluate and regulate substitutes for end uses historically 
using ozone-depleting chemicals. Under Section 612(c) of the CAA, the 
EPA is required to identify and publish lists of acceptable and 
unacceptable substitutes for class I or class II ozone-depleting 
substances. According to the SNAP program finding, the HFE-347pcf2 ODP 
is zero and therefore HFE-347pcf2 is listed as an acceptable substitute 
for several of these ozone-depleting chemicals in electronics and 
precision cleaning and as an aerosol solvent in 2012.\1\
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    \1\ 77 FR 47768, August 10, 2012. Also see list of acceptable 
cleaning solvents under SNAP decision: http://www.epa.gov/ozone/snap/solvents/solvents.pdf.
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C. Toxicity

    Based on a screening assessment of the health and environmental 
risks of HFE-347pcf2 (available in the docket for the SNAP rule at EPA-
HQ-OAR-2003-0118 under the name, ``Risk Screen on Substitutes CFC-113, 
Methyl Chloroform, and HCFC-141b in Aerosol Solvent, Electronics 
Cleaning, and Precision Cleaning Substitute: HFE-347pcf2''), the SNAP 
program anticipated that users will be able to use the compound in 
precision cleaning without significantly greater health risks than 
presented by use of other available substitutes.
    Potential health effects of HFE-347pcf2 include coughing, 
dizziness, dullness, drowsiness, and headache. Higher concentrations 
can produce heart irregularities, central nervous system depression, 
narcosis, unconsciousness, respiratory failure, or death. This compound 
may also irritate the skin or eyes. The acute and short-term studies 
presented during the SNAP review indicated that HFE-347pcf2 is toxic by 
inhalation, and mortality was observed at high concentrations of 2000 
ppm and above. HFE-347pcf2 is not commonly used outside of industrial 
settings, and other compounds in the same industrial uses have similar 
health and environmental risks. The SNAP program, in their listing of 
HFE-347pcf2 as an acceptable substitute in aerosol solvent, recommended 
that adequate ventilation and good industrial hygiene practice be 
utilized due to the potential neurotoxic effects of this substitute at 
high acute (short-term) concentrations. The manufacturer recommended an 
acceptable exposure limit (AEL) for the workplace of 50 ppm (8-hr total 
weight average, TWA). The EPA recommended a maximum allowable human 
exposure limit of 150 ppm for HFE-347pcf2. The EPA anticipates that 
users following good practices will be able to use HFE-347pcf2 in 
electronics and precision cleaning without appreciable health risks.
    HFE-347pcf2 is not regulated as a hazardous air pollutant (HAP) 
under Title I of the CAA. Also, it is not listed as a toxic chemical 
under Section 313 of the Emergency Planning and Community Right-to-Know 
Act (EPCRA).
    The Toxic Substances Control Act (TSCA) gives the EPA authority to 
assess and prevent potential unreasonable risks to human health and the 
environment before a new chemical substance is introduced into 
commerce. Section 5 of TSCA requires manufacturers and importers to 
notify the EPA before manufacturing or importing a new chemical 
substance by submitting a pre-manufacture notice (PMN) prior to the 
manufacture (including import) of the chemical. Under the TSCA New 
Chemicals Program, the EPA then assesses whether an unreasonable risk 
may, or will, be presented by the expected manufacture, processing, 
distribution in commerce, use, and disposal of the new substance. The 
PMN for HFE-347pcf2 stated the substance will be used in industrial 
settings for cleaning electronic components, precision cleaning, 
dewatering of electronic components and other parts following aqueous 
cleaning, and as a carrier/lubricant coating for hard disk drives and 
other precision parts. EPA did not determine that the above-listed 
proposed industrial processing or use of the substance presents an 
unreasonable risk. The EPA has determined, however, that domestic 
manufacture, use in non-industrial products, or use other than as 
described in the PMN may cause serious chronic health effects. To 
mitigate risks identified during the PMN review of HFE-347pcf2 (PMN P-
04-0635), EPA issued a Significant New Use Rule (SNUR) \2\ requiring 
that manufacturers notify the EPA prior to manufacture or processing of 
the compound for any new use other than those proposed in the PMN. The 
required notification will provide the EPA with the opportunity to 
evaluate the intended use and, if necessary, to prohibit or limit that 
activity before it occurs.
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    \2\ 77 FR 61117 (Oct. 5, 2012): FR document, with preamble 
background. See 40 CFR 721.10549.
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D. Contribution to Climate Change

    The Intergovernmental Panel on Climate Change (IPCC) Fifth 
Assessment Report (IPCC AR5) estimated the lifetime of HFE-347pcf2 to 
be 6.0 years and the radiative efficiency to be 0.48 W/m\2\/ppb. The 
report estimated the resulting 100-year global warming potential (GWP) 
to be 889, meaning that, over a 100-year period, one ton of HFE-347pcf2 
traps 889 times as much warming energy as one ton of CO2 
(IPCC, 2013).\3\ HFE-347pcf2's GWP of 889 is lower than some of the 
substitutes in the end uses for which it has been listed as acceptable 
under the SNAP program, such as HFC-4310mee (GWP = 1650), but higher 
than the GWP of some other substitutes, such as HFC-365mfc (GWP = 804), 
HFE-7100 (GWP = 421) and aqueous cleaners with no direct GWP. Under the 
SNAP program, the EPA continually reviews the availability of 
acceptable substitutes and expects to eventually eliminate higher-GWP 
chemicals from the list of acceptable compounds as safer, lower-GWP 
substitutes become available.
---------------------------------------------------------------------------

    \3\ The GWP value for HFE-347pcf2 of 580 considered in the 2012 
SNAP decision came from the previous IPCC report, AR4 (IPCC, 2007). 
AR4 GWP values are still used in a number of regulatory and 
reporting contexts to maintain consistency and allow for analysis of 
trends.
---------------------------------------------------------------------------

E. Conclusions

    The EPA finds that HFE-347pcf2 is negligibly reactive with respect 
to its contribution to tropospheric O3 formation and thus 
may be exempted from the EPA's definition of VOC in 40 CFR 51.100(s). 
HFE-347pcf2 has been

[[Page 50334]]

listed as acceptable for use in electronic and precision cleaning and 
as an aerosol solvent under the SNAP program (USEPA, 2004). The EPA 
determined that HFE-347pcf2 has a similar or lower stratospheric 
O3 depletion potential than available substitutes in those 
end uses and that the toxicity risk from using HFE-347pcf2 is not 
significantly greater than the risk from using other available 
alternatives. HFE-347pcf2, among other hydrofluoroethers, was found by 
both the Montreal Protocol's solvents, coatings, and adhesives 
technical options committee in 2002 and its technical and economic 
assessment panel in 2005, to be a suitable replacement for other, more 
harmful cleaning solvents (UNEP, 2002, 2005). HFE-347pcf2 is expected 
to be used primarily for the purposes regulated by the SNAP program. It 
is mostly replacing chemicals with higher GWP and the SNAP program will 
continue to evaluate its acceptability as an alternative for those 
specific uses, the EPA has concluded that non-tropospheric ozone-
related risks associated with potential increased use of HFE-347pcf2 
are adequately managed by this program. The EPA does not expect 
significant use of HFE-347pcf2 in applications not covered by the SNAP 
program. However, the SNUR in place under TSCA requires that any 
significant new use of the chemical be reported to EPA using a 
Significant New Use Notice (SNUN).
    Any significant new use of HFE-347pcf2 would need to be evaluated 
by the EPA, and the EPA will continually review the availability of 
acceptable substitute chemicals from the list of acceptable compounds 
under the SNAP program as lower-GWP substitutes become available, which 
could lead to restrictions on the use of HFE-347pcf2, should safer, 
lower-GWP substitutes become available. At this time, SNAP does not 
anticipate further evaluation of HFE-347pcf2 to potentially remove the 
compound from the list of acceptable substitutes in the precision 
cleaning end-use largely because the use of the chemical is limited to 
a small niche market.

V. Direct Final Action

    The EPA is responding to the petition by revising its regulatory 
definition of VOC at 40 CFR 51.100(s) to add HFE-347pcf2 to the list of 
compounds that are exempt from the regulatory definition of VOC because 
it is less reactive than ethane based on a comparison of 
kOH, and mass-based MIR, and molar-based MIR metrics and is 
therefore considered negligibly reactive. As a result of this action, 
if an entity uses or produces any of this compound and is subject to 
the EPA regulations limiting the use of VOC in a product, limiting the 
VOC emissions from a facility, or otherwise controlling the use of VOC 
for purposes related to attaining the O3 NAAQS, then this 
compound will not be counted as a VOC in determining whether these 
regulatory obligations have been met. This action may also affect 
whether this compound is considered a VOC for state regulatory purposes 
to reduce O3 formation if a state relies on the EPA's 
regulatory definition of VOC. States are not obligated to exclude from 
control as a VOC those compounds that the EPA has found to be 
negligibly reactive. However, no state may take credit for controlling 
this compound in its O3 control strategy. Consequently, 
reduction in emissions for this compound will not be considered or 
counted in determining whether states have met the rate of progress 
requirements for VOC in SIPs or in demonstrating attainment of the 
O3 NAAQS.

VI. Statutory and Executive Order Reviews

A. Executive Order 12866: Regulatory Planning and Review and Executive 
Order 13563: Improving Regulation and Regulatory Review

    This action is not a significant regulatory action and was 
therefore not submitted to the Office of Management and Budget (OMB) 
for review.

B. Paperwork Reduction Act (PRA)

    This action does not impose an information collection burden under 
the PRA. It does not contain any recordkeeping or reporting 
requirements.

C. Regulatory Flexibility Act (RFA)

    I certify that this action will not have a significant economic 
impact on a substantial number of small entities under the RFA. This 
action will not impose any requirements on small entities. This action 
removes HFE-347pcf2 from the regulatory definition of VOC and thereby 
relieves manufacturers, distributers, and users of the compound from 
requirements to control emissions of the compound.

D. Unfunded Mandates Reform Act (UMRA)

    This action does not contain any unfunded mandate as described in 
UMRA, 2 U.S.C. 1531-1538, and does not significantly or uniquely affect 
small governments. The action imposes no enforceable duty on any state, 
local or tribal governments, or the private sector.

E. Executive Order 13132: Federalism

    This action does not have federalism implications. It will not have 
substantial direct effects on the states, on the relationship between 
the national government and the states, or on the distribution of power 
and responsibilities among the various levels of government.

F. Executive Order 13175: Consultation and Coordination With Indian 
Tribal Governments

    This action does not have tribal implications, as specified in 
Executive Order 13175. This direct final rule removes HFE-347pcf2 from 
the regulatory definition of VOC and thereby relieves manufacturers, 
distributers and users from requirements to control emissions of the 
compound. Thus, Executive Order 13175 does not apply to this action.

G. Executive Order 13045: Protection of Children From Environmental 
Health and Safety Risks

    This action is not subject to Executive Order 13045 because it is 
not economically significant as defined in Executive Order 12866, and 
because the EPA does not believe the environmental health or safety 
risks addressed by this action present a disproportionate risk to 
children. Since HFE-347pcf2 is utilized in specific industrial 
applications where children are not present and dissipates quickly, 
there is no exposure or disproportionate risk to children. This action 
removes HFE-347pcf2 from the regulatory definition of VOC and thereby 
relieves manufacturers, distributers and users from requirements to 
control emissions of the compound.

H. Executive Order 13211: Actions Concerning Regulations That 
Significantly Affect Energy Supply, Distribution or Use

    This action is not subject to Executive Order 13211 because it is 
not a significant regulatory action under Executive Order 12866.

I. National Technology Transfer and Advancement Act (NTTAA)

    This rulemaking does not involve technical standards.

J. Executive Order 12898: Federal Actions To Address Environmental 
Justice in Minority Populations and Low-Income Populations

    The EPA believes that this action does not have disproportionately 
high and adverse human health or environmental effects on minority 
populations, low-income populations and/or indigenous

[[Page 50335]]

peoples, as specified in Executive Order 12898 (59 FR 7629 February 16, 
1994). This action removes HFE-347pcf2 from the regulatory definition 
of VOC and thereby relieves manufacturers, distributers, and users of 
the compound from requirements to control emissions of the compound.

K. Congressional Review Act (CRA)

    This action is subject to the CRA, and the EPA will submit a rule 
report to each House of the Congress and to the Comptroller General of 
the United States. This action is not a ``major rule'' as defined by 5 
U.S.C. 804(2).

L. Judicial Review

    Under section 307(b)(1) of the CAA, petitions for judicial review 
of this action must be filed in the United States Court of Appeals for 
the District of Columbia Circuit Court within 60 days from the date the 
final action is published in the Federal Register. Filing a petition 
for review by the Administrator of this final action does not affect 
the finality of this action for the purposes of judicial review nor 
does it extend the time within which a petition for judicial review 
must be filed, and shall not postpone the effectiveness of such action. 
Thus, any petitions for review of this action related to the exemption 
of HFE-347pcf2 from the regulatory definition of VOC must be filed in 
the Court of Appeals for the District of Columbia Circuit within 60 
days from the date final action is published in the Federal Register.

References

Atkinson, R., Baulch, D. L., Cox, R. A., Crowley, J. N., Hampson, 
Jr., R. F., Hynes, R. G., Jenkin, M. E., Kerr, J. A., Rossi, M. J., 
and Troe, J. (2006) Evaluated kinetic and photochemical data for 
atmospheric chemistry: Volume II--gas phase reactions of organic 
species. Atmos. Chem. Phys. 6: 3625-4055.
Carter, W. P. L. (1994) Development of ozone reactivity scales for 
volatile organic compounds. J. Air Waste Manage, 44: 881-899.
Carter, W. P. L. (2008) Reactivity Estimates for Selected Consumer 
Product Compounds, Final Report to California Air Resources Board 
Contract No. 06-408, February 19, 2008. http://www.arb.ca.gov/research/reactivity/consumer_products.pdf.
Carter, W. P. L. (2011) SAPRC Atmospheric Chemical Mechanisms and 
VOC Reactivity Scales, Web page at http://www.engr.ucr.edu/~carter/
SAPRC/ Last updated in Sept. 14, 2013. Tables of Maximum Incremental 
Reactivity (MIR) Values available at http://www.arb.ca.gov/regact/2009/mir2009/mir2009.htm. May 11, 2011.
Carter, W. P. L. (2014) Estimating the ground-level atmospheric 
ozone formation potentials of 1,1,2,2-Tetrafluoro-1-(2,2,2-
trifluoroethoxy) ethane (HFE-347pcf2), November 13, 2014.
IPCC, 2007: Climate Change 2007: The Physical Science Basis. 
Contribution of Working Group I to the Fourth Assessment Report of 
the Intergovernmental Panel on Climate Change [Solomon, S., D. Qin, 
M. Manning, Z. Chen, M. Marquis, K. B. Averyt, M. Tignor and H. L. 
Miller (eds.)]. Cambridge University Press, Cambridge, United 
Kingdom and New York, NY, USA, 996 pp.
IPCC, 2013: Climate Change 2013: The Physical Science Basis. 
Contribution of Working Group I to the Fifth Assessment Report of 
the Intergovernmental Panel on Climate Change [Stocker, T. F., D. 
Qin, G.-K. Plattner, M. Tignor, S. K. Allen, J. Boschung, A. Nauels, 
Y. Xia, V. Bex and P. M. Midgley (eds.)]. Cambridge University 
Press, Cambridge, United Kingdom and New York, NY, USA, 1535 pp.
Pitts, J. N. Jr., Winer, A. M., Aschmann, S. M., Carter, W. P. L., 
and Atkinson, K. (1983), Experimental Protocol for Determining 
Hydroxyl Radical Reaction Rate Constants Environmental Science 
Research Laboratory, ORD, USEPA. EPA600/3-82-038.
Tokuhashi, K., Takahashi, A., Kaise, M., Kondo, K., Sekiya, A., 
Yamashita, S., and Ito, H., (2000), Rate Constants for the Reactions 
of OH Radicals with CH3OCF2CHF2, 
CHF2OCH2CF2CHF2, 
CHF2OCH2CF2CF3, and 
CF3CH2OCF2CHF2 over the 
Temperature Range 250-430 K. J. Phys. Chem. Kinet A, 2000, V 104, N 
6, 17 February, 2000.
UNEP (2002), Montreal Protocol on Substances that Deplete the Ozone 
Layer: 2002 Report of the Solvents, Coatings, and Adhesives 
Technical Options Committee, Assessment Report, 2002.
UNEP Technology and Economic Assessment Panel, UNEP/TEAP, (2005), 
Montreal Protocol on Substances that Deplete the Ozone Layer, 
Progress Report, May 2005.
USEPA, (USEPA/SNAP), (2004), The U.S. Solvents Cleaning Industry and 
the Transition to Non Ozone Depleting Substances, September 2004.

List of Subjects in 40 CFR Part 51

    Environmental protection, Administrative practice and procedure, 
Air pollution control, Ozone, Reporting and recordkeeping requirements, 
Volatile organic compounds.

    Dated: July 20, 2016.
Gina McCarthy,
Administrator.

    For reasons stated in the preamble, part 51 of chapter I of title 
40 of the Code of Federal Regulations is amended as follows:

PART 51--REQUIREMENTS FOR PREPARATION, ADOPTION, AND SUBMITTAL OF 
IMPLEMENTATION PLANS

Subpart F--Procedural Requirements

0
1. The authority citation for part 51, subpart F, continues to read as 
follows:

    Authority:  42 U.S.C. 7401, 7411, 7412, 7413, 7414, 7470-7479, 
7501-7508, 7601, and 7602.


0
2. Section 51.100 is amended by revising the introductory text of 
paragraph (s)(1) to read as follows:


Sec.  51.100   Definitions.

* * * * *
    (s)(1) This includes any such organic compound other than the 
following, which have been determined to have negligible photochemical 
reactivity: Methane; ethane; methylene chloride (dichloromethane); 
1,1,1-trichloroethane (methyl chloroform); 1,1,2-trichloro-1,2,2-
trifluoroethane (CFC-113); trichlorofluoromethane (CFC-11); 
dichlorodifluoromethane (CFC-12); chlorodifluoromethane (HCFC-22); 
trifluoromethane (HFC-23); 1,2-dichloro 1,1,2,2-tetrafluoroethane (CFC-
114); chloropentafluoroethane (CFC-115); 1,1,1-trifluoro 2,2-
dichloroethane (HCFC-123); 1,1,1,2-tetrafluoroethane (HFC-134a); 1,1-
dichloro 1-fluoroethane (HCFC-141b); 1-chloro 1,1-difluoroethane (HCFC-
142b); 2-chloro-1,1,1,2-tetrafluoroethane (HCFC-124); pentafluoroethane 
(HFC-125); 1,1,2,2-tetrafluoroethane (HFC-134); 1,1,1-trifluoroethane 
(HFC-143a); 1,1-difluoroethane (HFC-152a); parachlorobenzotrifluoride 
(PCBTF); cyclic, branched, or linear completely methylated siloxanes; 
acetone; perchloroethylene (tetrachloroethylene); 3,3-dichloro-
1,1,1,2,2-pentafluoropropane (HCFC-225ca); 1,3-dichloro-1,1,2,2,3-
pentafluoropropane (HCFC-225cb); 1,1,1,2,3,4,4,5,5,5-decafluoropentane 
(HFC 43-10mee); difluoromethane (HFC-32); ethylfluoride (HFC-161); 
1,1,1,3,3,3-hexafluoropropane (HFC-236fa); 1,1,2,2,3-pentafluoropropane 
(HFC-245ca); 1,1,2,3,3-pentafluoropropane (HFC-245ea); 1,1,1,2,3-
pentafluoropropane (HFC-245eb); 1,1,1,3,3-pentafluoropropane (HFC-
245fa); 1,1,1,2,3,3-hexafluoropropane (HFC-236ea); 1,1,1,3,3-
pentafluorobutane (HFC-365mfc); chlorofluoromethane (HCFC-31); 1 
chloro-1-fluoroethane (HCFC-151a); 1,2-dichloro-1,1,2-trifluoroethane 
(HCFC-123a); 1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxy-butane 
(C4F9OCH3 or HFE-7100); 2-
(difluoromethoxymethyl)-1,1,1,2,3,3,3-heptafluoropropane

[[Page 50336]]

((CF3)2CFCF2OCH3); 1-
ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane 
(C4F9OC2H5 or HFE-7200); 2-
(ethoxydifluoromethyl)-1,1,1,2,3,3,3-heptafluoropropane 
((CF3)2CFCF2OC2H5
); methyl acetate; 1,1,1,2,2,3,3-heptafluoro-3-methoxy-propane (n-
C3F7OCH3, HFE-7000); 3-ethoxy-1,1,1,2,3,4,4,5,5,6,6,6-dodecafluoro-2-
(trifluoromethyl) hexane (HFE-7500); 1,1,1,2,3,3,3-heptafluoropropane 
(HFC 227ea); methyl formate (HCOOCH3); 1,1,1,2,2,3,4,5,5,5-decafluoro-
3-methoxy-4-trifluoromethyl-pentane (HFE-7300); propylene carbonate; 
dimethyl carbonate; trans-1,3,3,3-tetrafluoropropene; 
HCF2OCF2H (HFE-134); 
HCF2OCF2OCF2H (HFE-236cal2); 
HCF2OCF2CF2OCF2H (HFE-
338pcc13); 
HCF2OCF2OCF2CF2OCF2
H (H-Galden 1040x or H-Galden ZT 130 (or 150 or 180)); trans 1-chloro-
3,3,3-trifluoroprop-1-ene; 2,3,3,3-tetrafluoropropene; 2-amino-2-
methyl-1-propanol; t-butyl acetate; 1,1,2,2- Tetrafluoro -1-(2,2,2-
trifluoroethoxy) ethane; and perfluorocarbon compounds which fall into 
these classes:
* * * * *
[FR Doc. 2016-17789 Filed 7-29-16; 8:45 am]
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                                              50330              Federal Register / Vol. 81, No. 147 / Monday, August 1, 2016 / Rules and Regulations

                                              obtaining regulatory objectives and                      an accessible format (e.g., braille, large            DATES:  This rule is effective on
                                              taking into account—among other things                   print, audiotape, or compact disc) on                 September 30, 2016 without further
                                              and to the extent practicable—the costs                  request to the program contact person                 notice, unless the EPA receives adverse
                                              of cumulative regulations;                               listed under FOR FURTHER INFORMATION                  comment by August 31, 2016. If the EPA
                                                 (3) In choosing among alternative                     CONTACT.                                              receives adverse comment, we will
                                              regulatory approaches, select those                         Electronic Access to This Document:                publish a timely withdrawal in the
                                              approaches that maximize net benefits                    The official version of this document is              Federal Register informing the public
                                              (including potential economic,                           the document published in the Federal                 that the rule will not take effect.
                                              environmental, public health and safety,                 Register. Free Internet access to the                 ADDRESSES: Submit your comments,
                                              and other advantages; distributive                       official edition of the Federal Register              identified by Docket ID No. EPA–HQ–
                                              impacts; and equity);                                    and the Code of Federal Regulations is                OAR–2015–0041, at http://
                                                 (4) To the extent feasible, specify                   available via the Federal Digital System              www.regulations.gov. Follow the online
                                              performance objectives, rather than the                  at: www.gpo.gov/fdsys. At this site you               instructions for submitting comments.
                                              behavior or manner of compliance a                       can view this document, as well as all                Once submitted, comments cannot be
                                              regulated entity must adopt; and                         other documents of this Department                    edited or removed from Regulations.gov.
                                                 (5) Identify and assess available                     published in the Federal Register, in                 The EPA may publish any comment
                                              alternatives to direct regulation,                       text or Portable Document Format                      received to its public docket. Do not
                                              including economic incentives—such as                    (PDF). To use PDF you must have                       submit electronically any information
                                              user fees or marketable permits—to                       Adobe Acrobat Reader, which is                        you consider to be Confidential
                                              encourage the desired behavior or                        available free at the site.                           Business Information (CBI) or other
                                              provide information that enables the                        You may also access documents of the               information whose disclosure is
                                              public to make choices.                                  Department published in the Federal                   restricted by statute. Multimedia
                                                 Executive Order 13563 also requires                   Register by using the article search                  submissions (audio, video, etc.) must be
                                              an agency ‘‘to use the best available                    feature at: www.federalregister.gov.                  accompanied by a written comment.
                                              techniques to quantify anticipated                       Specifically, through the advanced                    The written comment is considered the
                                              present and future benefits and costs as                 search feature at this site, you can limit            official comment and should include
                                              accurately as possible.’’ The Office of                  your search to documents published by                 discussion of all points you wish to
                                              Information and Regulatory Affairs of                    the Department.                                       make. The EPA will generally not
                                              OMB has emphasized that these                                                                                  consider comments or comment
                                                                                                         Dated: July 26, 2016.
                                              techniques may include ‘‘identifying                                                                           contents located outside of the primary
                                              changing future compliance costs that                    Sue Swenson,
                                                                                                       Acting Assistant Secretary for Special
                                                                                                                                                             submission (i.e. on the web, cloud, or
                                              might result from technological                                                                                other file sharing system). For
                                              innovation or anticipated behavioral                     Education and Rehabilitative Services.
                                                                                                       [FR Doc. 2016–18031 Filed 7–29–16; 8:45 am]
                                                                                                                                                             additional submission methods, the full
                                              changes.’’                                                                                                     EPA public comment policy,
                                                 We are issuing these final priorities,                BILLING CODE 4000–01–P
                                                                                                                                                             information about CBI or multimedia
                                              requirements, and definitions only on a                                                                        submissions, and general guidance on
                                              reasoned determination that their                                                                              making effective comments, please visit
                                              benefits justify their costs. In choosing                ENVIRONMENTAL PROTECTION                              http://www2.epa.gov/dockets/
                                              among alternative regulatory                             AGENCY                                                commenting-epa-dockets.
                                              approaches, we selected those
                                                                                                       40 CFR Part 51                                        FOR FURTHER INFORMATION CONTACT:
                                              approaches that maximize net benefits.
                                                                                                                                                             Souad Benromdhane, Office of Air
                                              Based on the analysis that follows, the                  [EPA–HQ–OAR–2015–0041; FRL–9949–77–                   Quality Planning and Standards, Health
                                              Department believes that this regulatory                 OAR]                                                  and Environmental Impacts Division,
                                              action is consistent with the principles
                                                                                                       RIN 2060–AR94                                         Mail Code C539–07, Environmental
                                              in Executive Order 13563.
                                                 We also have determined that this                                                                           Protection Agency, Research Triangle
                                                                                                       Air Quality: Revision to the Regulatory               Park, NC 27711; telephone: (919) 541–
                                              regulatory action does not unduly
                                                                                                       Definition of Volatile Organic                        4359; fax number: (919) 541–5315;
                                              interfere with State, local, and tribal
                                                                                                       Compounds—Exclusion of 1,1,2,2-                       email address: benromdhane.souad@
                                              governments in the exercise of their
                                                                                                       Tetrafluoro-1-(2,2,2-trifluoroethoxy)                 epa.gov.
                                              governmental functions.
                                                 In accordance with both Executive                     Ethane (HFE-347pcf2)
                                                                                                                                                             SUPPLEMENTARY INFORMATION:
                                              orders, the Department has assessed the                  AGENCY: Environmental Protection                      Table of Contents
                                              potential costs and benefits, both                       Agency (EPA).
                                              quantitative and qualitative, of this                    ACTION: Direct final rule.                            I. Why is the EPA using a direct final rule?
                                              regulatory action. The potential costs                                                                         II. Does this action apply to me?
                                              are those resulting from statutory                       SUMMARY:   The Environmental Protection               III. Background
                                                                                                       Agency (EPA) is taking direct final                      A. The EPA’s VOC Exemption Policy
                                              requirements and those we have                                                                                    B. Petition To List HFE-347pcf2 as an
                                              determined as necessary for                              action to revise the regulatory definition                  Exempt Compound
                                              administering the Department’s                           of volatile organic compounds (VOC)                   IV. The EPA’s Assessment of the Petition
                                              programs and activities.                                 under the Clean Air Act (CAA). This                      A. Contribution to Tropospheric Ozone
                                                 Intergovernmental Review: This                        direct final action adds 1,1,2,2-                           Formation
                                              competition is subject to Executive                      Tetrafluoro-1-(2,2,2-trifluoroethoxy)                    B. Contribution to Stratospheric Ozone
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                                              Order 12372 and the regulations in 34                    ethane (also known as HFE-347pcf2;                          Depletion
                                              CFR part 79. However, under 34 CFR                       CAS number 406–78–0) to the list of                      C. Toxicity
                                                                                                       compounds excluded from the                              D. Contribution to Climate Change
                                              79.8(a), we waive intergovernmental                                                                               E. Conclusions
                                              review in order to make an award by the                  regulatory definition of VOC on the                   V. Direct Final Action
                                              end of FY 2016.                                          basis that this compound makes a                      VI. Statutory and Executive Order Reviews
                                                 Accessible Format: Individuals with                   negligible contribution to tropospheric                  A. Executive Order 12866: Regulatory
                                              disabilities can obtain this document in                 ozone (O3) formation.                                       Planning and Review and Executive



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                                                                 Federal Register / Vol. 81, No. 147 / Monday, August 1, 2016 / Rules and Regulations                                           50331

                                                    Order 13563: Improving Regulation and              emissions of VOC; and industries                      forward referred to as the 2005 Interim
                                                    Regulatory Review                                  manufacturing and/or using HFE-                       Guidance). The EPA uses the reactivity
                                                 B. Paperwork Reduction Act (PRA)                      347pcf2 as a precision cleaning agent to              of ethane as the threshold for
                                                 C. Regulatory Flexibility Act (RFA)                   remove contaminants including oil,                    determining whether a compound has
                                                 D. Unfunded Mandates Reform Act
                                                    (UMRA)
                                                                                                       flux, and fingerprints from items like                negligible reactivity. Compounds that
                                                 E. Executive Order 13132: Federalism                  medical devices, artificial implants,                 are less reactive than, or equally reactive
                                                 F. Executive Order 13175: Consultation                crucial military and aerospace items,                 to, ethane under certain assumed
                                                    and Coordination With Indian Tribal                electric components, printed circuit                  conditions may be deemed negligibly
                                                    Governments                                        boards, optics, jewelry, ball bearings,               reactive and, therefore, suitable for
                                                 G. Executive Order 13045: Protection of               aircraft guidance systems, film, relays,              exemption from the regulatory
                                                    Children From Environmental Health                 and a variety of metal components,                    definition of VOC. Compounds that are
                                                    and Safety Risks                                   among others.                                         more reactive than ethane continue to
                                                 H. Executive Order 13211: Actions                                                                           be considered VOC for regulatory
                                                    Concerning Regulations That                        III. Background                                       purposes and, therefore, are subject to
                                                    Significantly Affect Energy Supply,
                                                    Distribution or Use                                A. The EPA’s VOC Exemption Policy                     control requirements. The selection of
                                                 I. National Technology Transfer and                      Tropospheric O3, commonly known                    ethane as the threshold compound was
                                                    Advancement Act (NTTAA)                            as smog, is formed when VOC and                       based on a series of smog chamber
                                                 J. Executive Order 12898: Federal Actions                                                                   experiments that underlay the 1977
                                                                                                       nitrogen oxides (NOX) react in the
                                                    To Address Environmental Justice in                                                                      policy.
                                                                                                       atmosphere in the presence of sunlight.
                                                    Minority Populations and Low-Income                                                                         The EPA has used three different
                                                    Populations
                                                                                                       Because of the harmful health effects of              metrics to compare the reactivity of a
                                                 K. Congressional Review Act (CRA)                     O3, the EPA and state governments limit               specific compound to that of ethane: (i)
                                                 L. Judicial Review                                    the amount of VOC that can be released                The rate constant for reaction with the
                                                                                                       into the atmosphere. Volatile organic                 hydroxyl radical (OH) (known as kOH);
                                              I. Why is the EPA using a direct final                   compounds form O3 through
                                              rule?                                                                                                          (ii) the maximum incremental reactivity
                                                                                                       atmospheric photochemical reactions,                  (MIR) on a reactivity per unit mass
                                                 The EPA is publishing this direct final               and different VOC have different levels               basis; and (iii) the MIR expressed on a
                                              rule without a prior proposed rule                       of reactivity. That is, different VOC do              reactivity per mole basis. Differences
                                              because we view this as a                                not react to form O3 at the same speed                between these three metrics are
                                              noncontroversial action and anticipate                   or do not form O3 to the same extent.                 discussed below.
                                              no adverse comment. This action revises                  Some VOC react slowly or form less O3;                   The kOH is the rate constant of the
                                              the EPA’s regulatory definition of VOC                   therefore, changes in their emissions                 reaction of the compound with the OH
                                              for purposes of preparing state                          have limited effects on local or regional             radical in the air. This reaction is often,
                                              implementation plans (SIPs) to attain                    O3 pollution episodes. It is the EPA’s                but not always the first and rate-limiting
                                              the national ambient air quality                         policy that organic compounds with a                  step in a series of chemical reactions by
                                              standards (NAAQS) for O3 under title I                   negligible level of reactivity should be              which a compound breaks down in the
                                              of the CAA by adding HFE-347pcf2 to                      excluded from the regulatory definition               air and contributes to O3 formation. If
                                              the list of compounds excluded from the                  of VOC in order to focus VOC control                  this step is slow, the compound will
                                              regulatory definition of VOC on the                      efforts on compounds that significantly               likely not form O3 at a very fast rate. The
                                              basis that this compound makes a                         increase O3 concentrations. The EPA                   kOH values have long been used by the
                                              negligible contribution to tropospheric                  also believes that exempting such                     EPA as metrics of photochemical
                                              O3 formation. However, in the                            compounds creates an incentive for                    reactivity and O3-forming activity, and
                                              ‘‘Proposed Rules’’ section of this                       industry to use negligibly reactive                   they have been the basis for most of the
                                              Federal Register, we are publishing a                    compounds in place of more highly                     EPA’s early exemptions of negligibly
                                              separate document that will serve as the                 reactive compounds that are regulated                 reactive compounds from the regulatory
                                              proposed rule to make this revision to                   as VOC. The EPA lists compounds that                  definition of VOC. The kOH metric is
                                              the regulatory definition of VOC if                      it has determined to be negligibly                    inherently a molar-based comparison,
                                              adverse comments are received on this                    reactive in its regulations as being                  i.e., it measures the rate at which
                                              direct final rule. We will not institute a               excluded from the regulatory definition               molecules react.
                                              second comment period on this action.                    of VOC (40 CFR 51.100(s)).                               The MIR, both by mole and by mass,
                                              Any parties interested in commenting                        The CAA requires the regulation of                 is a more updated metric of
                                              must do so at this time. For further                     VOC for various purposes. Section                     photochemical reactivity derived from a
                                              information about commenting on this                     302(s) of the CAA specifies that the EPA              computer-based photochemical model,
                                              rule, see the ADDRESSES section of this                  has the authority to define the meaning               and has been used as a consideration of
                                              document.                                                of ‘‘VOC’’ and, hence, what compounds                 reactivity since 1995. This metric
                                                 If the EPA receives adverse comment,                  shall be treated as VOC for regulatory                considers the complete O3-forming
                                              we will publish a timely withdrawal in                   purposes. The policy of excluding                     activity of a compound over multiple
                                              the Federal Register informing the                       negligibly reactive compounds from the                hours and through multiple reaction
                                              public that this direct final rule will not              regulatory definition of VOC was first                pathways, not merely the first reaction
                                              take effect. We would address all public                 laid out in the ‘‘Recommended Policy                  step with OH. Further explanation of
                                              comments in any subsequent final rule                    on Control of Volatile Organic                        the MIR metric can be found in Carter
                                              based on the proposed rule.                              Compounds’’ (42 FR 35314, July 8,                     (1994), ‘‘Development of ozone
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                                                                                                       1977) (from here forward referred to as               reactivity scales for volatile organic
                                              II. Does this action apply to me?                        the 1977 Recommended Policy) and was                  compounds.’’
                                                Entities potentially affected by this                  supplemented subsequently with the                       The EPA has considered the choice
                                              direct final rule include, but are not                   ‘‘Interim Guidance on Control of                      between a molar or mass basis for the
                                              necessarily limited to: State and local                  Volatile Organic Compounds in Ozone                   comparison to ethane in past
                                              air pollution control agencies that adopt                State Implementation Plans’’ (70 FR                   rulemakings and guidance. In the 2005
                                              and implement regulations to control air                 54046, September 13, 2005) (from here                 Interim Guidance, the EPA stated:


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                                              50332                     Federal Register / Vol. 81, No. 147 / Monday, August 1, 2016 / Rules and Regulations

                                              [A] comparison to ethane on a mass basis                                   (2,2,2-trifluoroethoxy) ethane (HFE-                                To address the potential for
                                              strikes the right balance between a threshold                              347pcf2; CAS number 406–78–0) be                                 stratospheric O3 impacts, the petitioner
                                              that is low enough to capture compounds                                    exempted from the regulatory definition                          contended that, given the atmospheric
                                              that significantly affect ozone concentrations
                                              and a threshold that is high enough to
                                                                                                                         of VOC. The petition was based on the                            lifetime of HFE-347pcf2 and that it does
                                              exempt some compounds that may usefully                                    argument that HFE-347pcf2 has low                                not contain chlorine or bromine, it is
                                              substitute for more highly reactive                                        reactivity relative to ethane. The                               not expected to contribute to the
                                              compounds.                                                                 petitioner indicated that HFE-347pcf2                            depletion of the stratospheric O3 layer.
                                                 When reviewing compounds that have                                      may be used in a variety of applications
                                              been suggested for VOC-exempt status, EPA                                  as a precision cleaning agent to remove                          IV. The EPA’s Assessment of the
                                              will continue to compare them to ethane                                    contaminants including oil, flux, and                            Petition
                                              using kOH expressed on a molar basis and
                                                                                                                         fingerprints from items like medical                               The EPA is taking direct final action
                                              MIR values expressed on a mass basis.
                                                                                                                         devices, artificial implants, crucial                            to respond to the petition by exempting
                                                 The 2005 Interim Guidance also noted                                    military and aerospace items, electric                           HFE-347pcf2 from the regulatory
                                              that concerns have sometimes been                                          components, printed circuit boards,                              definition of VOC. This action is based
                                              raised about the potential impact of a                                     optics, jewelry, ball bearings, aircraft                         on consideration of the compound’s low
                                              VOC exemption on environmental                                             guidance systems, film, relays, and a
                                              endpoints other than O3 concentrations,                                                                                                     contribution to tropospheric O3 and the
                                                                                                                         variety of metal components, among                               low likelihood of risk to human health
                                              including fine particle formation, air                                     others.
                                              toxics exposures, stratospheric O3                                                                                                          or the environment. In this case, the
                                                                                                                            To support its petition, AGC                                  EPA considered issues of contribution
                                              depletion, and climate change. The EPA
                                                                                                                         Chemicals America, Inc. referenced                               to stratospheric O3 depletion, toxicity,
                                              has recognized, however, that there are
                                                                                                                         several documents, including two peer-                           and climate change. Additional
                                              existing regulatory and non-regulatory
                                                                                                                         reviewed journal articles on HFE-                                information on these topics is provided
                                              programs that are specifically designed
                                              to address these issues, and the EPA                                       347pcf2’s reaction rates (Tokuhashi et                           in the following sections.
                                              continues to believe in general that the                                   al., 2000; Pitts et al, 1983). In 2014, AGC
                                                                                                                         provided a supplemental technical                                A. Contribution to Tropospheric Ozone
                                              impacts of VOC exemptions on                                                                                                                Formation
                                              environmental endpoints other than O3                                      report on the maximum incremental
                                              formation will be adequately addressed                                     reactivity of HFE-347pcf2 (Carter, 2014).                          The reaction rate of HFE-347pcf2 with
                                              by these programs. The VOC exemption                                       According to this report, the maximum                            the OH radical (kOH) has been measured
                                              policy is intended to facilitate                                           incremental reactivity of HFE-347pcf2                            to be 9.16 × 10¥15 cm3/molecule-sec
                                              attainment of the O3 NAAQS. In general,                                    ranges between 0.0007 g O3/g HFE-                                (Tokuhashi et al., 2000); other reactions
                                              VOC exemption decisions will continue                                      347pcf2 (best estimate) and 0.0013 g                             with O3 and the nitrate radical were
                                              to be based solely on consideration of a                                   O3/g HFE-347pcf2 (high reactivity                                negligibly small. The corresponding
                                              compound’s contribution to O3                                              estimate) on the mass-based MIR scale.                           reaction rate of ethane with OH is 2.4 ×
                                              formation. However, if the EPA                                             This reactivity rate is much lower than                          10¥13 cm3/molecule-sec (Atkinson et
                                              determines that a particular VOC                                           that of ethane (0.28 g O3/g ethane), the                         al., 2006).
                                              exemption is likely to result in a                                         compound that the EPA has used for
                                                                                                                         comparison to define ‘‘negligible’’ O3                             The overall atmospheric reactivity of
                                              significant increase in the use of a                                                                                                        HFE-347pcf2 was not studied in an
                                              compound and that the increased use                                        reactivity for the purpose of exempting
                                                                                                                         compounds from the regulatory                                    experimental smog chamber, but the
                                              would pose a significant risk to human                                                                                                      chemical mechanism derived from other
                                              health or the environment that would                                       definition of VOC. The rate constant for
                                                                                                                         the gas-phase reaction of OH radicals                            chamber studies (Carter, 2011) was used
                                              not be addressed adequately by existing                                                                                                     to model the complete formation of O3
                                              programs or policies, then the EPA may                                     with HFE-347pcf2 (kOH) has been
                                                                                                                         measured to be 9.16 × 10¥15 cm3/                                 for an entire single day under realistic
                                              exercise its judgment accordingly in                                                                                                        atmospheric conditions (Carter, 2014).
                                              deciding whether to grant an exemption.                                    molecule-sec at ∼298 K (Pitts et al.,
                                                                                                                         1983, Tokuhashi et al., 2000). Based on                          In 2014, Carter calculated a MIR value
                                              B. Petition To List HFE-347pcf2 as an                                      the measured reactivity rate of HFE-                             of 0.0007 to 0.0013 g O3/g VOC for HFE-
                                              Exempt Compound                                                            347pcf2 (Pitts et al., 1983), HFE-347pcf2                        347pcf2 for ‘‘averaged conditions,’’
                                                Asahi Glass Company, AGC                                                 has a smaller kOH than ethane (kOH of                            versus 0.28 g O3/g VOC for ethane.
                                              Chemicals America, Inc. submitted a                                        ethane = 2.4 × 10¥13 cm3/molecule-sec                              Table 1 presents the three reactivity
                                              petition to the EPA on February 5, 2007,                                   at ∼298 K) and, therefore, is less reactive                      metrics for HFE-347pcf2 as they
                                              requesting that 1,1,2,2-Tetrafluoro-1-                                     than ethane.                                                     compare to ethane.
                                                                                                           TABLE 1—REACTIVITIES OF ETHANE AND HFE-347pcf2
                                                                                                                                                                                                      Maximum             Maximum
                                                                                                                                                                                kOH                  incremental         incremental
                                                                                                  Compound                                                                (cm3/molecule-sec)       reactivity (MIR)    reactivity (MIR)
                                                                                                                                                                                                  (g O3/mole VOC)       (g O3/g VOC)

                                              Ethane ..................................................................................................................         2.4 × 10¥13                      8.4               0.28
                                              HFE-347pcf2 ........................................................................................................             9.16 × 10¥15                0.14–0.26     0.0007–0.0013
                                                Notes:
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                                                1. kOH value at 298 K for ethane is from Atkinson et al., 2006 (page 3626).
                                                2. kOH value at 298 K for HFE-347pcf2 is from Tokuhashi, 2000.
                                                3. Mass-based MIR value (g O3/g VOC) of ethane is from Carter, 2011.
                                                4. Mass-based MIR value (g O3/g VOC) of HFE-347pcf2 is from a supplemental report by Carter, 2014.
                                                5. Molar-based MIR (g O3/mole VOC) values were calculated from the mass-based MIR (g O3/g VOC) values using the number of moles per
                                              gram of the relevant organic compound.




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                                                                 Federal Register / Vol. 81, No. 147 / Monday, August 1, 2016 / Rules and Regulations                                                  50333

                                                 The data in Table 1, shows that HFE-                  than presented by use of other available              and other parts following aqueous
                                              347pcf2 has a significantly lower kOH                    substitutes.                                          cleaning, and as a carrier/lubricant
                                              value than ethane, meaning that it                          Potential health effects of HFE-                   coating for hard disk drives and other
                                              initially reacts less quickly in the                     347pcf2 include coughing, dizziness,                  precision parts. EPA did not determine
                                              atmosphere than ethane. Also, a                          dullness, drowsiness, and headache.                   that the above-listed proposed industrial
                                              molecule of HFE-347pcf2 is less reactive                 Higher concentrations can produce                     processing or use of the substance
                                              than a molecule of ethane in terms of                    heart irregularities, central nervous                 presents an unreasonable risk. The EPA
                                              complete O3-forming activity as shown                    system depression, narcosis,                          has determined, however, that domestic
                                              by the molar-based MIR (g O3/mole                        unconsciousness, respiratory failure, or              manufacture, use in non-industrial
                                              VOC) values. Additionally, one gram of                   death. This compound may also irritate                products, or use other than as described
                                              HFE-347pcf2 has a lower capacity than                    the skin or eyes. The acute and short-                in the PMN may cause serious chronic
                                              one gram of ethane to form O3. Thus,                     term studies presented during the SNAP                health effects. To mitigate risks
                                              following the 2005 Interim Guidance,                     review indicated that HFE-347pcf2 is                  identified during the PMN review of
                                              HFE-347pcf2 is eligible to be exempted                   toxic by inhalation, and mortality was                HFE-347pcf2 (PMN P–04–0635), EPA
                                              from the regulatory definition of VOC                    observed at high concentrations of 2000               issued a Significant New Use Rule
                                              on the basis of kOH and both the mole-                   ppm and above. HFE-347pcf2 is not                     (SNUR) 2 requiring that manufacturers
                                              and mass-based MIR.                                      commonly used outside of industrial                   notify the EPA prior to manufacture or
                                                                                                       settings, and other compounds in the                  processing of the compound for any
                                              B. Contribution to Stratospheric Ozone                   same industrial uses have similar health              new use other than those proposed in
                                              Depletion                                                and environmental risks. The SNAP                     the PMN. The required notification will
                                                 HFE-347pcf2 is unlikely to contribute                 program, in their listing of HFE-347pcf2              provide the EPA with the opportunity to
                                              to the depletion of the stratospheric O3                 as an acceptable substitute in aerosol                evaluate the intended use and, if
                                              layer. The O3 depletion potential (ODP)                  solvent, recommended that adequate                    necessary, to prohibit or limit that
                                              of HFE-347pcf2 is expected to be                         ventilation and good industrial hygiene               activity before it occurs.
                                              negligible based on several lines of                     practice be utilized due to the potential
                                                                                                       neurotoxic effects of this substitute at              D. Contribution to Climate Change
                                              evidence: The absence of chlorine or
                                              bromine from the compound, the                           high acute (short-term) concentrations.                  The Intergovernmental Panel on
                                              expected initial reactions described in                  The manufacturer recommended an                       Climate Change (IPCC) Fifth Assessment
                                              Carter (2008), and the general theory                    acceptable exposure limit (AEL) for the               Report (IPCC AR5) estimated the
                                              supporting the estimated mechanisms of                   workplace of 50 ppm (8-hr total weight                lifetime of HFE-347pcf2 to be 6.0 years
                                              its reactivity with the hydroxyl OH                      average, TWA). The EPA recommended                    and the radiative efficiency to be 0.48
                                              discussed in Carter (2011).                              a maximum allowable human exposure                    W/m2/ppb. The report estimated the
                                                 The Significant New Alternatives                      limit of 150 ppm for HFE-347pcf2. The                 resulting 100-year global warming
                                              Policy (SNAP) program is the EPA’s                       EPA anticipates that users following                  potential (GWP) to be 889, meaning that,
                                              program to evaluate and regulate                         good practices will be able to use HFE-               over a 100-year period, one ton of HFE-
                                              substitutes for end uses historically                    347pcf2 in electronics and precision                  347pcf2 traps 889 times as much
                                              using ozone-depleting chemicals. Under                   cleaning without appreciable health                   warming energy as one ton of CO2
                                              Section 612(c) of the CAA, the EPA is                    risks.                                                (IPCC, 2013).3 HFE-347pcf2’s GWP of
                                              required to identify and publish lists of                   HFE-347pcf2 is not regulated as a                  889 is lower than some of the
                                              acceptable and unacceptable substitutes                  hazardous air pollutant (HAP) under                   substitutes in the end uses for which it
                                              for class I or class II ozone-depleting                  Title I of the CAA. Also, it is not listed            has been listed as acceptable under the
                                              substances. According to the SNAP                        as a toxic chemical under Section 313                 SNAP program, such as HFC-4310mee
                                                                                                       of the Emergency Planning and                         (GWP = 1650), but higher than the GWP
                                              program finding, the HFE-347pcf2 ODP
                                                                                                       Community Right-to-Know Act                           of some other substitutes, such as HFC-
                                              is zero and therefore HFE-347pcf2 is
                                                                                                       (EPCRA).                                              365mfc (GWP = 804), HFE-7100 (GWP =
                                              listed as an acceptable substitute for                      The Toxic Substances Control Act
                                              several of these ozone-depleting                                                                               421) and aqueous cleaners with no
                                                                                                       (TSCA) gives the EPA authority to                     direct GWP. Under the SNAP program,
                                              chemicals in electronics and precision                   assess and prevent potential
                                              cleaning and as an aerosol solvent in                                                                          the EPA continually reviews the
                                                                                                       unreasonable risks to human health and                availability of acceptable substitutes and
                                              2012.1                                                   the environment before a new chemical
                                                                                                                                                             expects to eventually eliminate higher-
                                              C. Toxicity                                              substance is introduced into commerce.
                                                                                                                                                             GWP chemicals from the list of
                                                                                                       Section 5 of TSCA requires
                                                Based on a screening assessment of                                                                           acceptable compounds as safer, lower-
                                                                                                       manufacturers and importers to notify
                                              the health and environmental risks of                                                                          GWP substitutes become available.
                                                                                                       the EPA before manufacturing or
                                              HFE-347pcf2 (available in the docket for                 importing a new chemical substance by                 E. Conclusions
                                              the SNAP rule at EPA–HQ–OAR–2003–                        submitting a pre-manufacture notice
                                              0118 under the name, ‘‘Risk Screen on                                                                             The EPA finds that HFE-347pcf2 is
                                                                                                       (PMN) prior to the manufacture                        negligibly reactive with respect to its
                                              Substitutes CFC–113, Methyl                              (including import) of the chemical.
                                              Chloroform, and HCFC-141b in Aerosol                                                                           contribution to tropospheric O3
                                                                                                       Under the TSCA New Chemicals                          formation and thus may be exempted
                                              Solvent, Electronics Cleaning, and                       Program, the EPA then assesses whether
                                              Precision Cleaning Substitute: HFE-                                                                            from the EPA’s definition of VOC in 40
                                                                                                       an unreasonable risk may, or will, be                 CFR 51.100(s). HFE-347pcf2 has been
                                              347pcf2’’), the SNAP program                             presented by the expected manufacture,
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                                              anticipated that users will be able to use               processing, distribution in commerce,                    2 77 FR 61117 (Oct. 5, 2012): FR document, with
                                              the compound in precision cleaning                       use, and disposal of the new substance.               preamble background. See 40 CFR 721.10549.
                                              without significantly greater health risks               The PMN for HFE-347pcf2 stated the                       3 The GWP value for HFE-347pcf2 of 580

                                                                                                       substance will be used in industrial                  considered in the 2012 SNAP decision came from
                                                1 77 FR 47768, August 10, 2012. Also see list of                                                             the previous IPCC report, AR4 (IPCC, 2007). AR4
                                              acceptable cleaning solvents under SNAP decision:
                                                                                                       settings for cleaning electronic                      GWP values are still used in a number of regulatory
                                              http://www.epa.gov/ozone/snap/solvents/                  components, precision cleaning,                       and reporting contexts to maintain consistency and
                                              solvents.pdf.                                            dewatering of electronic components                   allow for analysis of trends.



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                                              50334              Federal Register / Vol. 81, No. 147 / Monday, August 1, 2016 / Rules and Regulations

                                              listed as acceptable for use in electronic               entity uses or produces any of this                   E. Executive Order 13132: Federalism
                                              and precision cleaning and as an aerosol                 compound and is subject to the EPA                      This action does not have federalism
                                              solvent under the SNAP program                           regulations limiting the use of VOC in                implications. It will not have substantial
                                              (USEPA, 2004). The EPA determined                        a product, limiting the VOC emissions                 direct effects on the states, on the
                                              that HFE-347pcf2 has a similar or lower                  from a facility, or otherwise controlling             relationship between the national
                                              stratospheric O3 depletion potential                     the use of VOC for purposes related to                government and the states, or on the
                                              than available substitutes in those end                  attaining the O3 NAAQS, then this                     distribution of power and
                                              uses and that the toxicity risk from                     compound will not be counted as a VOC                 responsibilities among the various
                                              using HFE-347pcf2 is not significantly                   in determining whether these regulatory               levels of government.
                                              greater than the risk from using other                   obligations have been met. This action
                                              available alternatives. HFE-347pcf2,                     may also affect whether this compound                 F. Executive Order 13175: Consultation
                                              among other hydrofluoroethers, was                       is considered a VOC for state regulatory              and Coordination With Indian Tribal
                                              found by both the Montreal Protocol’s                    purposes to reduce O3 formation if a                  Governments
                                              solvents, coatings, and adhesives                        state relies on the EPA’s regulatory                    This action does not have tribal
                                              technical options committee in 2002                      definition of VOC. States are not                     implications, as specified in Executive
                                              and its technical and economic                           obligated to exclude from control as a                Order 13175. This direct final rule
                                              assessment panel in 2005, to be a                        VOC those compounds that the EPA has                  removes HFE-347pcf2 from the
                                              suitable replacement for other, more                     found to be negligibly reactive.                      regulatory definition of VOC and
                                              harmful cleaning solvents (UNEP, 2002,                   However, no state may take credit for                 thereby relieves manufacturers,
                                              2005). HFE-347pcf2 is expected to be                     controlling this compound in its O3                   distributers and users from
                                              used primarily for the purposes                          control strategy. Consequently,                       requirements to control emissions of the
                                              regulated by the SNAP program. It is                     reduction in emissions for this                       compound. Thus, Executive Order
                                              mostly replacing chemicals with higher                   compound will not be considered or                    13175 does not apply to this action.
                                              GWP and the SNAP program will                            counted in determining whether states
                                              continue to evaluate its acceptability as                have met the rate of progress                         G. Executive Order 13045: Protection of
                                              an alternative for those specific uses, the              requirements for VOC in SIPs or in                    Children From Environmental Health
                                              EPA has concluded that non-                              demonstrating attainment of the O3                    and Safety Risks
                                              tropospheric ozone-related risks                         NAAQS.                                                  This action is not subject to Executive
                                              associated with potential increased use                                                                        Order 13045 because it is not
                                                                                                       VI. Statutory and Executive Order
                                              of HFE-347pcf2 are adequately managed                                                                          economically significant as defined in
                                                                                                       Reviews
                                              by this program. The EPA does not                                                                              Executive Order 12866, and because the
                                              expect significant use of HFE-347pcf2 in                 A. Executive Order 12866: Regulatory                  EPA does not believe the environmental
                                              applications not covered by the SNAP                     Planning and Review and Executive                     health or safety risks addressed by this
                                              program. However, the SNUR in place                      Order 13563: Improving Regulation and                 action present a disproportionate risk to
                                              under TSCA requires that any                             Regulatory Review                                     children. Since HFE-347pcf2 is utilized
                                              significant new use of the chemical be                     This action is not a significant                    in specific industrial applications where
                                              reported to EPA using a Significant New                  regulatory action and was therefore not               children are not present and dissipates
                                              Use Notice (SNUN).                                       submitted to the Office of Management                 quickly, there is no exposure or
                                                 Any significant new use of HFE-                       and Budget (OMB) for review.                          disproportionate risk to children. This
                                              347pcf2 would need to be evaluated by                                                                          action removes HFE-347pcf2 from the
                                              the EPA, and the EPA will continually                    B. Paperwork Reduction Act (PRA)                      regulatory definition of VOC and
                                              review the availability of acceptable                      This action does not impose an                      thereby relieves manufacturers,
                                              substitute chemicals from the list of                    information collection burden under the               distributers and users from
                                              acceptable compounds under the SNAP                      PRA. It does not contain any                          requirements to control emissions of the
                                              program as lower-GWP substitutes                         recordkeeping or reporting                            compound.
                                              become available, which could lead to                    requirements.
                                              restrictions on the use of HFE-347pcf2,                                                                        H. Executive Order 13211: Actions
                                              should safer, lower-GWP substitutes                      C. Regulatory Flexibility Act (RFA)                   Concerning Regulations That
                                              become available. At this time, SNAP                        I certify that this action will not have           Significantly Affect Energy Supply,
                                              does not anticipate further evaluation of                a significant economic impact on a                    Distribution or Use
                                              HFE-347pcf2 to potentially remove the                    substantial number of small entities                    This action is not subject to Executive
                                              compound from the list of acceptable                     under the RFA. This action will not                   Order 13211 because it is not a
                                              substitutes in the precision cleaning                    impose any requirements on small                      significant regulatory action under
                                              end-use largely because the use of the                   entities. This action removes HFE-                    Executive Order 12866.
                                              chemical is limited to a small niche                     347pcf2 from the regulatory definition
                                              market.                                                  of VOC and thereby relieves                           I. National Technology Transfer and
                                                                                                       manufacturers, distributers, and users of             Advancement Act (NTTAA)
                                              V. Direct Final Action
                                                                                                       the compound from requirements to                        This rulemaking does not involve
                                                 The EPA is responding to the petition                 control emissions of the compound.                    technical standards.
                                              by revising its regulatory definition of
                                              VOC at 40 CFR 51.100(s) to add HFE-                      D. Unfunded Mandates Reform Act                       J. Executive Order 12898: Federal
                                              347pcf2 to the list of compounds that                    (UMRA)                                                Actions To Address Environmental
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                                              are exempt from the regulatory                              This action does not contain any                   Justice in Minority Populations and
                                              definition of VOC because it is less                     unfunded mandate as described in                      Low-Income Populations
                                              reactive than ethane based on a                          UMRA, 2 U.S.C. 1531–1538, and does                       The EPA believes that this action does
                                              comparison of kOH, and mass-based                        not significantly or uniquely affect small            not have disproportionately high and
                                              MIR, and molar-based MIR metrics and                     governments. The action imposes no                    adverse human health or environmental
                                              is therefore considered negligibly                       enforceable duty on any state, local or               effects on minority populations, low-
                                              reactive. As a result of this action, if an              tribal governments, or the private sector.            income populations and/or indigenous


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                                                                 Federal Register / Vol. 81, No. 147 / Monday, August 1, 2016 / Rules and Regulations                                           50335

                                              peoples, as specified in Executive Order                      potentials of 1,1,2,2-Tetrafluoro-1-(2,2,2-      PART 51—REQUIREMENTS FOR
                                              12898 (59 FR 7629 February 16, 1994).                         trifluoroethoxy) ethane (HFE-347pcf2),           PREPARATION, ADOPTION, AND
                                              This action removes HFE-347pcf2 from                          November 13, 2014.                               SUBMITTAL OF IMPLEMENTATION
                                              the regulatory definition of VOC and                     IPCC, 2007: Climate Change 2007: The                  PLANS
                                              thereby relieves manufacturers,                               Physical Science Basis. Contribution of
                                              distributers, and users of the compound                       Working Group I to the Fourth                    Subpart F—Procedural Requirements
                                              from requirements to control emissions                        Assessment Report of the
                                              of the compound.                                              Intergovernmental Panel on Climate               ■ 1. The authority citation for part 51,
                                                                                                            Change [Solomon, S., D. Qin, M.                  subpart F, continues to read as follows:
                                              K. Congressional Review Act (CRA)                             Manning, Z. Chen, M. Marquis, K. B.                Authority: 42 U.S.C. 7401, 7411, 7412,
                                                This action is subject to the CRA, and                      Averyt, M. Tignor and H. L. Miller               7413, 7414, 7470–7479, 7501–7508, 7601,
                                              the EPA will submit a rule report to                          (eds.)]. Cambridge University Press,             and 7602.
                                              each House of the Congress and to the                         Cambridge, United Kingdom and New                ■ 2. Section 51.100 is amended by
                                              Comptroller General of the United                             York, NY, USA, 996 pp.                           revising the introductory text of
                                              States. This action is not a ‘‘major rule’’              IPCC, 2013: Climate Change 2013: The                  paragraph (s)(1) to read as follows:
                                              as defined by 5 U.S.C. 804(2).                                Physical Science Basis. Contribution of
                                                                                                            Working Group I to the Fifth Assessment          § 51.100   Definitions.
                                              L. Judicial Review                                            Report of the Intergovernmental Panel on         *      *     *     *    *
                                                 Under section 307(b)(1) of the CAA,                        Climate Change [Stocker, T. F., D. Qin,             (s)(1) This includes any such organic
                                              petitions for judicial review of this                         G.-K. Plattner, M. Tignor, S. K. Allen, J.       compound other than the following,
                                              action must be filed in the United States                     Boschung, A. Nauels, Y. Xia, V. Bex and          which have been determined to have
                                              Court of Appeals for the District of                          P. M. Midgley (eds.)]. Cambridge                 negligible photochemical reactivity:
                                              Columbia Circuit Court within 60 days                         University Press, Cambridge, United              Methane; ethane; methylene chloride
                                              from the date the final action is                             Kingdom and New York, NY, USA, 1535              (dichloromethane); 1,1,1-trichloroethane
                                              published in the Federal Register.                            pp.                                              (methyl chloroform); 1,1,2-trichloro-
                                              Filing a petition for review by the                      Pitts, J. N. Jr., Winer, A. M., Aschmann, S.          1,2,2-trifluoroethane (CFC-113);
                                              Administrator of this final action does                       M., Carter, W. P. L., and Atkinson, K.           trichlorofluoromethane (CFC-11);
                                              not affect the finality of this action for                    (1983), Experimental Protocol for                dichlorodifluoromethane (CFC-12);
                                              the purposes of judicial review nor does                      Determining Hydroxyl Radical Reaction            chlorodifluoromethane (HCFC-22);
                                              it extend the time within which a                             Rate Constants Environmental Science             trifluoromethane (HFC-23); 1,2-dichloro
                                              petition for judicial review must be                          Research Laboratory, ORD, USEPA.                 1,1,2,2-tetrafluoroethane (CFC-114);
                                              filed, and shall not postpone the                             EPA600/3–82–038.                                 chloropentafluoroethane (CFC-115);
                                              effectiveness of such action. Thus, any                  Tokuhashi, K., Takahashi, A., Kaise, M.,              1,1,1-trifluoro 2,2-dichloroethane
                                                                                                            Kondo, K., Sekiya, A., Yamashita, S., and        (HCFC-123); 1,1,1,2-tetrafluoroethane
                                              petitions for review of this action
                                                                                                            Ito, H., (2000), Rate Constants for the          (HFC-134a); 1,1-dichloro 1-fluoroethane
                                              related to the exemption of HFE-347pcf2
                                                                                                            Reactions of OH Radicals with                    (HCFC-141b); 1-chloro 1,1-
                                              from the regulatory definition of VOC
                                                                                                            CH3OCF2CHF2, CHF2OCH2CF2CHF2,                    difluoroethane (HCFC-142b); 2-chloro-
                                              must be filed in the Court of Appeals for
                                                                                                            CHF2OCH2CF2CF3, and                              1,1,1,2-tetrafluoroethane (HCFC-124);
                                              the District of Columbia Circuit within                       CF3CH2OCF2CHF2 over the Temperature
                                              60 days from the date final action is                                                                          pentafluoroethane (HFC-125); 1,1,2,2-
                                                                                                            Range 250–430 K. J. Phys. Chem. Kinet            tetrafluoroethane (HFC-134); 1,1,1-
                                              published in the Federal Register.                            A, 2000, V 104, N 6, 17 February, 2000.          trifluoroethane (HFC-143a); 1,1-
                                              References                                               UNEP (2002), Montreal Protocol on
                                                                                                                                                             difluoroethane (HFC-152a);
                                                                                                            Substances that Deplete the Ozone Layer:
                                              Atkinson, R., Baulch, D. L., Cox, R. A.,                                                                       parachlorobenzotrifluoride (PCBTF);
                                                                                                            2002 Report of the Solvents, Coatings,
                                                  Crowley, J. N., Hampson, Jr., R. F.,                                                                       cyclic, branched, or linear completely
                                                  Hynes, R. G., Jenkin, M. E., Kerr, J. A.,                 and Adhesives Technical Options
                                                                                                                                                             methylated siloxanes; acetone;
                                                  Rossi, M. J., and Troe, J. (2006) Evaluated               Committee, Assessment Report, 2002.
                                                                                                                                                             perchloroethylene (tetrachloroethylene);
                                                  kinetic and photochemical data for                   UNEP Technology and Economic Assessment
                                                                                                                                                             3,3-dichloro-1,1,1,2,2-
                                                  atmospheric chemistry: Volume II—gas                      Panel, UNEP/TEAP, (2005), Montreal
                                                                                                            Protocol on Substances that Deplete the
                                                                                                                                                             pentafluoropropane (HCFC-225ca); 1,3-
                                                  phase reactions of organic species.
                                                  Atmos. Chem. Phys. 6: 3625–4055.                          Ozone Layer, Progress Report, May 2005.
                                                                                                                                                             dichloro-1,1,2,2,3-pentafluoropropane
                                              Carter, W. P. L. (1994) Development of ozone             USEPA, (USEPA/SNAP), (2004), The U.S.                 (HCFC-225cb); 1,1,1,2,3,4,4,5,5,5-
                                                  reactivity scales for volatile organic                    Solvents Cleaning Industry and the               decafluoropentane (HFC 43-10mee);
                                                  compounds. J. Air Waste Manage, 44:                       Transition to Non Ozone Depleting                difluoromethane (HFC-32); ethylfluoride
                                                  881–899.                                                  Substances, September 2004.                      (HFC-161); 1,1,1,3,3,3-
                                              Carter, W. P. L. (2008) Reactivity Estimates                                                                   hexafluoropropane (HFC-236fa);
                                                  for Selected Consumer Product                        List of Subjects in 40 CFR Part 51                    1,1,2,2,3-pentafluoropropane (HFC-
                                                  Compounds, Final Report to California                                                                      245ca); 1,1,2,3,3-pentafluoropropane
                                                  Air Resources Board Contract No. 06–                   Environmental protection,
                                                  408, February 19, 2008. http://
                                                                                                                                                             (HFC-245ea); 1,1,1,2,3-
                                                                                                       Administrative practice and procedure,                pentafluoropropane (HFC-245eb);
                                                  www.arb.ca.gov/research/reactivity/                  Air pollution control, Ozone, Reporting
                                                  consumer_products.pdf.                                                                                     1,1,1,3,3-pentafluoropropane (HFC-
                                              Carter, W. P. L. (2011) SAPRC Atmospheric
                                                                                                       and recordkeeping requirements,                       245fa); 1,1,1,2,3,3-hexafluoropropane
                                                  Chemical Mechanisms and VOC                          Volatile organic compounds.                           (HFC-236ea); 1,1,1,3,3-
                                                  Reactivity Scales, Web page at http://                 Dated: July 20, 2016.                               pentafluorobutane (HFC-365mfc);
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                                                  www.engr.ucr.edu/∼carter/SAPRC/ Last                                                                       chlorofluoromethane (HCFC-31); 1
                                                                                                       Gina McCarthy,
                                                  updated in Sept. 14, 2013. Tables of                                                                       chloro-1-fluoroethane (HCFC-151a); 1,2-
                                                  Maximum Incremental Reactivity (MIR)                 Administrator.
                                                  Values available at http://
                                                                                                                                                             dichloro-1,1,2-trifluoroethane (HCFC-
                                                  www.arb.ca.gov/regact/2009/mir2009/                    For reasons stated in the preamble,                 123a); 1,1,1,2,2,3,3,4,4-nonafluoro-4-
                                                  mir2009.htm. May 11, 2011.                           part 51 of chapter I of title 40 of the               methoxy-butane (C4F9OCH3 or HFE-
                                              Carter, W. P. L. (2014) Estimating the ground-           Code of Federal Regulations is amended                7100); 2-(difluoromethoxymethyl)-
                                                  level atmospheric ozone formation                    as follows:                                           1,1,1,2,3,3,3-heptafluoropropane


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                                              50336              Federal Register / Vol. 81, No. 147 / Monday, August 1, 2016 / Rules and Regulations

                                              ((CF3)2CFCF2OCH3); 1-ethoxy-                             direct final rule in the Federal Register             authorities information that should
                                              1,1,2,2,3,3,4,4,4-nonafluorobutane                       and inform the public that the rule will              assist them in determining RACT for
                                              (C4F9OC2H5 or HFE-7200); 2-                              not take effect.                                      VOCs from various sources of fiberglass
                                              (ethoxydifluoromethyl)-1,1,1,2,3,3,3-                    ADDRESSES: Submit your comments,                      boat manufacturing. EPA has not
                                              heptafluoropropane                                       identified by Docket ID No. EPA–R03–                  published a previous CTG for fiberglass
                                              ((CF3)2CFCF2OC2H5); methyl acetate;                      OAR–2016–0304 at http://                              boat manufacturing materials, but did
                                              1,1,1,2,2,3,3-heptafluoro-3-methoxy-                     www.regulations.gov, or via email to                  publish an assessment of VOC
                                              propane (n-C3F7OCH3, HFE-7000); 3-                       fernandez.cristina@epa.gov. For                       emissions from fiberglass boat
                                              ethoxy-1,1,1,2,3,4,4,5,5,6,6,6-                          comments submitted at Regulations.gov,                manufacturing in 1990. The 1990
                                              dodecafluoro-2-(trifluoromethyl) hexane                  follow the online instructions for                    assessment defined the nature and
                                              (HFE-7500); 1,1,1,2,3,3,3-                               submitting comments. Once submitted,                  scope of VOC emissions from fiberglass
                                              heptafluoropropane (HFC 227ea);                          comments cannot be edited or removed                  boat manufacturing, characterized the
                                              methyl formate (HCOOCH3);                                from Regulations.gov. For either manner               industry, estimated per plant and
                                              1,1,1,2,2,3,4,5,5,5-decafluoro-3-                        of submission, the EPA may publish any                national VOC emissions, and identified
                                              methoxy-4-trifluoromethyl-pentane                        comment received to its public docket.                and evaluated potential control options.
                                              (HFE-7300); propylene carbonate;                         Do not submit electronically any                      In 2001, EPA promulgated the National
                                              dimethyl carbonate; trans-1,3,3,3-                       information you consider to be                        Emission Standards for Hazardous Air
                                              tetrafluoropropene; HCF2OCF2H (HFE-                      confidential business information (CBI)               Pollutants for Boat Manufacturing, 40
                                              134); HCF2OCF2OCF2H (HFE-236cal2);                       or other information whose disclosure is              CFR part 63, subpart VVVV (2001
                                              HCF2OCF2CF2OCF2H (HFE-338pcc13);                         restricted by statute. Multimedia                     NESHAP). The 2001 NESHAP
                                              HCF2OCF2OCF2CF2OCF2H (H-Galden                           submissions (audio, video, etc.) must be              established organic hazardous air
                                              1040x or H-Galden ZT 130 (or 150 or                      accompanied by a written comment.                     pollutant (HAP) emissions limits based
                                              180)); trans 1-chloro-3,3,3-trifluoroprop-               The written comment is considered the                 on low-HAP resins and gel coats and
                                              1-ene; 2,3,3,3-tetrafluoropropene; 2-                    official comment and should include                   low-emitting resin application
                                              amino-2-methyl-1-propanol; t-butyl                       discussion of all points you wish to                  technology. Several of the air pollution
                                              acetate; 1,1,2,2- Tetrafluoro -1-(2,2,2-                 make. EPA will generally not consider                 control districts in California have
                                              trifluoroethoxy) ethane; and                             comments or comment contents located                  specific regulations that control VOC
                                              perfluorocarbon compounds which fall                     outside of the primary submission (i.e.               emissions from fiberglass boat
                                              into these classes:                                      on the web, cloud, or other file sharing              manufacturing operations as part of
                                              *     *     *     *     *                                system). For additional submission                    their regulations for limiting VOC
                                              [FR Doc. 2016–17789 Filed 7–29–16; 8:45 am]              methods, please contact the person                    emissions from polyester resin
                                              BILLING CODE 6560–50–P                                   identified in the FOR FURTHER                         operations. Several other states also
                                                                                                                                                             have regulations that address VOC
                                                                                                       INFORMATION CONTACT section. For the
                                                                                                                                                             emissions from fiberglass boat
                                                                                                       full EPA public comment policy,
                                              ENVIRONMENTAL PROTECTION                                                                                       manufacturing as part of polyester resin
                                                                                                       information about CBI or multimedia
                                              AGENCY                                                                                                         operations. After reviewing the 1990
                                                                                                       submissions, and general guidance on
                                                                                                                                                             VOC assessment, the 2001 NESHAP,
                                                                                                       making effective comments, please visit
                                              40 CFR Part 52                                                                                                 and existing California district and other
                                                                                                       http://www2.epa.gov/dockets/
                                                                                                                                                             state VOC emission reduction
                                              [EPA–R03–OAR–2016–0304; FRL–9949–72–                     commenting-epa-dockets.
                                              Region 3]
                                                                                                                                                             approaches, and after considering
                                                                                                       FOR FURTHER INFORMATION CONTACT:                      information obtained since the issuance
                                                                                                       Gavin Huang, (215) 814–2042, or by                    of the 2001 NESHAP, EPA developed a
                                              Approval and Promulgation of Air
                                                                                                       email at huang.gavin@epa.gov.                         CTG entitled Control Techniques
                                              Quality Implementation Plans;
                                                                                                       SUPPLEMENTARY INFORMATION:                            Guidelines for Fiberglass Boat
                                              Maryland; Control of Volatile Organic
                                              Compounds Emissions From                                 I. Background                                         Manufacturing Materials (Publication
                                              Fiberglass Boat Manufacturing                                                                                  No. EPA 453/R–08–004; September
                                                                                                          Section 172(c)(1) of the CAA provides              2008).
                                              Materials
                                                                                                       that SIPs for nonattainment areas must                   The CTG for fiberglass boat
                                              AGENCY: Environmental Protection                         include reasonably available control                  manufacturing materials provides
                                              Agency (EPA).                                            measures (RACM), including reasonably                 control recommendations for reducing
                                              ACTION: Direct final rule.                               available control technology (RACT), for              VOC emissions from the use of gel coats,
                                                                                                       sources of emissions. Additionally,                   resins, and materials used to clean
                                              SUMMARY:   The Environmental Protection                  Maryland is in the Ozone Transport                    application equipment in fiberglass boat
                                              Agency (EPA) is taking direct final                      Region (OTR) established under section                manufacturing operations. This CTG
                                              action to approve a state                                184(a) of the CAA. Pursuant to section                applies to facilities that manufacture
                                              implementation plan (SIP) revision                       184(b)(1)(B) of the CAA, all areas in the             hulls or decks of boats from fiberglass or
                                              submitted by the State of Maryland.                      OTR must submit SIP revisions that                    build molds to make fiberglass boat
                                              This revision pertains to Maryland’s                     include implementation of RACT with                   hulls or decks. EPA’s 2008 CTG
                                              adoption of the requirements in EPA’s                    respect to all sources of VOCs in the                 recommends that the following
                                              control technique guidelines (CTG) for                   states covered by a CTG. See CAA                      operations should be covered: Open
                                              fiberglass boat manufacturing materials.                 section 184(b)(1). EPA defines RACT as                molding resin and gel coat operations
                                              This action is being taken under the                     ‘‘the lowest emission limitation that a               (these include pigmented gel coat, clear
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                                              Clean Air Act (CAA).                                     particular source is capable of meeting               gel coat, production resin, tooling gel
                                              DATES: This rule is effective on                         by the application of control technology              coat, and tooling resin); resin and gel
                                              September 30, 2016 without further                       that is reasonably available considering              coat mixing operations; and resin and
                                              notice, unless EPA receives adverse                      technological and economic feasibility.’’             gel coat application equipment cleaning
                                              written comment by August 31, 2016. If                   44 FR 53761 (September 17, 1979).                     operations.
                                              EPA receives such comments, it will                         CTGs are intended to provide state                    EPA’s 2008 CTG recommends the
                                              publish a timely withdrawal of the                       and local air pollution control                       following VOC reduction measures:


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Document Created: 2016-07-30 06:25:52
Document Modified: 2016-07-30 06:25:52
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionDirect final rule.
DatesThis rule is effective on September 30, 2016 without further notice, unless the EPA receives adverse comment by August 31, 2016. If the EPA receives adverse comment, we will publish a timely withdrawal in the Federal Register informing the public that the rule will not take effect.
ContactSouad Benromdhane, Office of Air Quality Planning and Standards, Health and Environmental Impacts Division, Mail Code C539-07, Environmental Protection Agency, Research Triangle Park, NC 27711; telephone: (919) 541-4359; fax number: (919)
FR Citation81 FR 50330 
RIN Number2060-AR94
CFR AssociatedEnvironmental Protection; Administrative Practice and Procedure; Air Pollution Control; Ozone; Reporting and Recordkeeping Requirements and Volatile Organic Compounds

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