83_FR_62722 83 FR 62489 - Oxytetracycline; Pesticide Tolerances

83 FR 62489 - Oxytetracycline; Pesticide Tolerances

ENVIRONMENTAL PROTECTION AGENCY

Federal Register Volume 83, Issue 233 (December 4, 2018)

Page Range62489-62494
FR Document2018-26343

This regulation establishes tolerances for residues of oxytetracycline in or on fruit, citrus, crop group 10-10. Geo Logic Corporation requested these tolerances under the Federal Food, Drug, and Cosmetic Act (FFDCA).

Federal Register, Volume 83 Issue 233 (Tuesday, December 4, 2018)
[Federal Register Volume 83, Number 233 (Tuesday, December 4, 2018)]
[Rules and Regulations]
[Pages 62489-62494]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-26343]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 180

[EPA-HQ-OPP-2015-0820; FRL-9986-87]


Oxytetracycline; Pesticide Tolerances

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: This regulation establishes tolerances for residues of 
oxytetracycline in or on fruit, citrus, crop group 10-10. Geo Logic 
Corporation requested these tolerances under the Federal Food, Drug, 
and Cosmetic Act (FFDCA).

DATES: This regulation is effective December 4, 2018. Objections and 
requests for hearings must be received on or before February 4, 2019 
and must be filed in accordance with the instructions provided in 40 
CFR part 178 (see also Unit I.C. of the SUPPLEMENTARY INFORMATION).

ADDRESSES: The docket for this action, identified by docket 
identification (ID) number EPA-HQ-OPP-2015-0820, is available at http://www.regulations.gov or at the Office of Pesticide Programs Regulatory 
Public Docket (OPP Docket) in the Environmental Protection Agency 
Docket Center (EPA/DC), West William Jefferson Clinton Bldg., Rm. 3334, 
1301 Constitution Ave. NW, Washington, DC 20460-0001. The Public 
Reading Room is open from 8:30 a.m. to 4:30 p.m., Monday through 
Friday, excluding legal holidays. The telephone number for the Public 
Reading Room is (202) 566-1744, and the telephone number for the OPP 
Docket is (703) 305-5805. Please review the visitor instructions and 
additional information about the docket available at http://www.epa.gov/dockets.

FOR FURTHER INFORMATION CONTACT: Michael Goodis, Registration Division 
(7505P), Office of Pesticide Programs, Environmental Protection Agency, 
1200 Pennsylvania Ave. NW, Washington, DC 20460-0001; main telephone 
number: (703) 305-7090; email address: [email protected].

SUPPLEMENTARY INFORMATION:

I. General Information

A. Does this action apply to me?

    You may be potentially affected by this action if you are an 
agricultural producer, food manufacturer, or pesticide manufacturer. 
The following list of North American Industrial Classification System 
(NAICS) codes is not intended to be exhaustive, but rather provides a 
guide to help readers determine whether this document applies to them. 
Potentially affected entities may include:
     Crop production (NAICS code 111).
     Animal production (NAICS code 112).
     Food manufacturing (NAICS code 311).
     Pesticide manufacturing (NAICS code 32532).

B. How can I get electronic access to other related information?

    You may access a frequently updated electronic version of EPA's 
tolerance regulations at 40 CFR part 180 through the Government 
Printing Office's e-CFR site at http://www.ecfr.gov/cgi-bin/text-idx?&c=ecfr&tpl=/ecfrbrowse/Title40/40tab_02.tpl.

C. How can I file an objection or hearing request?

    Under FFDCA section 408(g), 21 U.S.C. 346a, any person may file an 
objection to any aspect of this regulation and may also request a 
hearing on those objections. You must file your objection or request a 
hearing on this regulation in accordance with the instructions provided 
in 40 CFR part 178. To ensure proper receipt by EPA, you must identify 
docket ID number EPA-HQ-OPP-2015-0820 in the subject line on the first 
page of your submission. All objections and requests for a hearing must 
be in writing and must be received by the Hearing Clerk on or before 
February 4, 2019. Addresses for mail and hand delivery of objections 
and hearing requests are provided in 40 CFR 178.25(b).
    In addition to filing an objection or hearing request with the 
Hearing Clerk as described in 40 CFR part 178, please submit a copy of 
the filing (excluding any Confidential Business Information (CBI)) for 
inclusion in the public docket. Information not marked confidential 
pursuant to 40 CFR part 2 may be disclosed publicly by EPA without 
prior notice. Submit the non-CBI copy of your objection or hearing 
request, identified by docket ID number EPA-HQ-OPP-2015-0820, by one of 
the following methods:
     Federal eRulemaking Portal: http://www.regulations.gov. 
Follow the online instructions for submitting comments. Do not submit 
electronically any information you consider to be CBI or other 
information whose disclosure is restricted by statute.
     Mail: OPP Docket, Environmental Protection Agency Docket 
Center (EPA/DC), (28221T), 1200 Pennsylvania Ave., NW, Washington, DC 
20460-0001.
     Hand Delivery: To make special arrangements for hand 
delivery or delivery of boxed information, please follow the 
instructions at http://www.epa.gov/dockets/contacts.html.
    Additional instructions on commenting or visiting the docket, along 
with more information about dockets generally, is available at http://www.epa.gov/dockets.

II. Summary of Petitioned-For Tolerance

    In the Federal Register of March 16, 2016 (81 FR 14030) (FRL-9942-
86), EPA issued a document pursuant to

[[Page 62490]]

FFDCA section 408(d)(3), 21 U.S.C. 346a(d)(3), announcing the filing of 
a pesticide petition (PP 5F8415) by Geo Logic Corporation, P.O. Box 
3091, Tequesta, FL 33469. The petition requested that 40 CFR 180.337 be 
amended by establishing tolerances for residues of the bactericide 
oxytetracycline, (4S,4aR,5S,5aR,6S,12aS)-4-(dimethylamino)-
1,4,4a,5,5a,6,11,12a-octahydro-3,5,6,10,12,12a-hexahydroxy-6-methyl-
1,11-dioxo-2-naphthacenecarboxamide, in or on fruit, citrus, crop group 
10-10 at 0.01 parts per million (ppm).
    That document referenced a summary of the petition prepared by Geo 
Logic Corporation, the registrant, which is available in the docket, 
http://www.regulations.gov. One comment was received on the notice of 
filing. EPA's response to this comment is discussed in Unit IV.C.

III. Aggregate Risk Assessment and Determination of Safety

    Section 408(b)(2)(A)(i) of FFDCA allows EPA to establish a 
tolerance (the legal limit for a pesticide chemical residue in or on a 
food) only if EPA determines that the tolerance is ``safe.'' Section 
408(b)(2)(A)(ii) of FFDCA defines ``safe'' to mean that ``there is a 
reasonable certainty that no harm will result from aggregate exposure 
to the pesticide chemical residue, including all anticipated dietary 
exposures and all other exposures for which there is reliable 
information.'' This includes exposure through drinking water and in 
residential settings but does not include occupational exposure. 
Section 408(b)(2)(C) of FFDCA requires EPA to give special 
consideration to exposure of infants and children to the pesticide 
chemical residue in establishing a tolerance and to ``ensure that there 
is a reasonable certainty that no harm will result to infants and 
children from aggregate exposure to the pesticide chemical residue. . . 
.''
    Consistent with FFDCA section 408(b)(2)(D), and the factors 
specified in FFDCA section 408(b)(2)(D), EPA has reviewed the available 
scientific data and other relevant information in support of this 
action. EPA has sufficient data to assess the hazards of and to make a 
determination on aggregate exposure for oxytetracycline including 
exposure resulting from the tolerances established by this action. 
EPA's assessment of exposures and risks associated with oxytetracycline 
follows.

A. Toxicological Profile

    EPA has evaluated the available toxicity data and considered its 
validity, completeness, and reliability as well as the relationship of 
the results of the studies to human risk. EPA has also considered 
available information concerning the variability of the sensitivities 
of major identifiable subgroups of consumers, including infants and 
children.
    At high doses, the target organ of tetracycline toxicity is the 
liver. The most common effect in intermediate- or long-term oral 
exposures in rats and mice was a decrease in body weight. In the 
prenatal developmental study in rats, clinical signs included increased 
incidences of respiratory signs and rough hair coat in the dams, in 
addition to increased mortality and a decreased percentage of dams 
found pregnant. Also identified was a decrease in fetal body weight. In 
the mouse prenatal developmental study, there was no toxicity 
identified in the dams or fetuses. In all of the above animal studies, 
adverse effects were seen at doses that exceed the limit dose. There is 
no adequate reproductive toxicity study available in the database, 
however, the data requirement was waived based on the lack of 
reproductive effects reported during the history of use as a drug. No 
evidence of neurotoxicity was observed in any guideline study. A rat 
immunotoxicity study demonstrated immunosuppression at doses lower than 
those for systemic toxicity. Tetracyclines are known to inhibit bone 
growth in developing tissue. When oxytetracycline was administered 
orally as a single dose to two female infant rhesus monkeys, zygomatic 
arch bone (lateral surface of temporal bone) growth was inhibited for 
~12.5 days with no recovery observed by 21 days. Effects on bone growth 
are consistent with oxytetracycline's ability to chelate calcium, and 
so are not unexpected. Bone developmental effects were also observed 
after administration of chlortetracycline and demethylchlortetracycline 
in adult rhesus monkeys highlighting the consistency of tetracycline 
treatment across this class of chemicals.
    The Agency has classified oxytetracycline as ``Group D: Not 
Classifiable as to Human Carcinogenicity''. Oxytetracycline has low 
acute toxicity, being Toxicity Category IV for oral toxicity, the only 
acute lethality study available in the database.
    Specific information on the studies received and the nature of the 
adverse effects caused by oxytetracycline as well as the no-observed-
adverse-effect-level (NOAEL) and the lowest-observed-adverse-effect-
level (LOAEL) from the toxicity studies can be found at http://www.regulations.gov in document ``Oxytetracycline/Oxytetracycline 
Hydrochloride/Oxytetracycline Calcium: Draft Human Health Risk 
Assessment in Support of Registration Review and Tolerance 
Establishment in/on Citrus Fruit Crop Group 10-10'' in docket ID number 
EPA-HQ-OPP-2015-0820.

B. Toxicological Points of Departure/Levels of Concern

    Once a pesticide's toxicological profile is determined, EPA 
identifies toxicological points of departure (POD) and levels of 
concern to use in evaluating the risk posed by human exposure to the 
pesticide. For hazards that have a threshold below which there is no 
appreciable risk, the toxicological POD is used as the basis for 
derivation of reference values for risk assessment. PODs are developed 
based on a careful analysis of the doses in each toxicological study to 
determine the dose at which no adverse effects are observed (the NOAEL) 
and the lowest dose at which adverse effects of concern are identified 
(the LOAEL). Uncertainty/safety factors are used in conjunction with 
the POD to calculate a safe exposure level--generally referred to as a 
population-adjusted dose (PAD) or a reference dose (RfD)--and a safe 
margin of exposure (MOE). For non-threshold risks, the Agency assumes 
that any amount of exposure will lead to some degree of risk. Thus, the 
Agency estimates risk in terms of the probability of an occurrence of 
the adverse effect expected in a lifetime. For more information on the 
general principles EPA uses in risk characterization and a complete 
description of the risk assessment process, see http://www2.epa.gov/pesticide-science-and-assessing-pesticide-risks/assessing-human-health-risk-pesticides.

[[Page 62491]]



     Table 1--Summary of Toxicological Doses and Endpoints for Oxytetracycline for Use in Human Health Risk
                                                   Assessment
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                                    Point of departure
        Exposure/scenario            and uncertainty/     RfD, PAD, LOC for     Study and toxicological effects
                                      safety factors       risk assessment
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Acute dietary (All populations)..  None selected.......  N/A................  No appropriate endpoint for
                                                                               females age 13-49 or for the
                                                                               general population attributable
                                                                               to a single exposure.
----------------------------------------------------------------------------------------------------------------
Chronic dietary (All populations)  NOAEL= 100 mg/kg/day  Chronic RfD = 1 mg/  WOE from 3 rats and 2 dogs chronic
                                   UFA = 10x...........   kg/day.              studies.
                                   UFH = 10x...........  cPAD = 0.10 mg/kg/   The NOAEL of 100 mg/kg/day was
                                   FQPA SF = 10x.......   day.                 derived from these studies and no
                                                                               specific LOAEL was established.
                                  ------------------------------------------------------------------------------
Cancer...........................         Classified as a Group D carcinogen--not classifiable as to human
                                                                  carcinogenicity.
----------------------------------------------------------------------------------------------------------------
FQPA SF = Food Quality Protection Act Safety Factor. LOAEL = lowest-observed-adverse-effect-level. LOC = level
  of concern. mg/kg/day = milligram/kilogram/day. MOE = margin of exposure. NOAEL = no-observed-adverse-effect-
  level. RfD = reference dose. UFA = extrapolation from animal to human (interspecies). UFH = potential
  variation in sensitivity among members of the human population (intraspecies).

C. Exposure Assessment

    1. Dietary exposure from food and feed uses. In evaluating dietary 
exposure to oxytetracycline, EPA considered exposure under the 
petitioned-for tolerances as well as all existing oxytetracycline 
tolerances in 40 CFR 180.337. EPA assessed dietary exposures from 
oxytetracycline in food as follows:
    i. Acute exposure. Quantitative acute dietary exposure and risk 
assessments are performed for a food-use pesticide, if a toxicological 
study has indicated the possibility of an effect of concern occurring 
as a result of a 1-day or single exposure. No such effects were 
identified in the toxicological studies for oxytetracycline; therefore, 
a quantitative acute dietary exposure assessment is unnecessary.
    ii. Chronic exposure. In conducting the chronic dietary exposure 
assessment EPA 2003-2008 food consumption data from the USDA's National 
Health and Nutrition Examination Survey/What We Eat in America. As to 
residue levels in food, EPA used tolerance-level residues, default 
processing factors (PFs), and assumed 100 percent crop treated (PCT).
    iii. Cancer. Based on the data summarized in Unit III.A., EPA has 
concluded that oxytetracycline does not pose a cancer risk to humans. 
Therefore, a dietary exposure assessment for the purpose of assessing 
cancer risk is unnecessary.
    iv. Anticipated residue and PCT information. EPA did not use 
anticipated residue and/or PCT information in the dietary assessment 
for oxytetracycline. Tolerance-level residues and/or 100 PCT were 
assumed for all food commodities.
    2. Dietary exposure from drinking water. The Agency used screening-
level water exposure models in the dietary exposure analysis and risk 
assessment for oxytetracycline in drinking water. These simulation 
models take into account data on the physical, chemical, and fate/
transport characteristics of oxytetracycline. Further information 
regarding EPA drinking water models used in pesticide exposure 
assessment can be found at http://www2.epa.gov/pesticide-science-and-assessing-pesticide-risks/about-water-exposure-models-used-pesticide.
    Based on the Pesticide Root Zone Model version 5.02/Variable Volume 
Water Body Model (VVWM V1.02) and Pesticide Root Zone Model Ground 
Water (PRZM GW), EDWCs of oxytetracycline for chronic exposures for 
non-cancer assessments are estimated to be 2.85 ppb for surface water 
and 0.323 ppb for ground water.
    Modeled estimates of drinking water concentrations were directly 
entered into the dietary exposure model. For chronic dietary risk 
assessment, the water concentration of value 2.85 ppb was used to 
assess the contribution to drinking water.
    3. From non-dietary exposure. The term ``residential exposure'' is 
used in this document to refer to non-occupational, non-dietary 
exposure (e.g., for lawn and garden pest control, indoor pest control, 
termiticides, and flea and tick control on pets). Oxytetracycline is 
not registered for any specific use patterns that would result in 
residential exposure.
    Tetracycline hydrochloride (97% chemical similarity to 
oxytetracycline) is approved by FDA for use as an oral antibiotic to 
treat certain bacterial and parasitic infections. EPA examined the 
impact that additional pesticide exposures to oxytetracycline would 
have on a person who has been prescribed the antibiotic. EPA determined 
that the additional pesticide exposure would not have more than a 
minimal impact on the total dose to the pharmaceutical patient, and 
thus concludes that there is a reasonable certainty that the additional 
exposure from pesticide uses of oxytetracycline would result in no harm 
finding to a user being treated therapeutically.
    4. Cumulative effects from substances with a common mechanism of 
toxicity. Section 408(b)(2)(D)(v) of FFDCA requires that, when 
considering whether to establish, modify, or revoke a tolerance, the 
Agency consider ``available information'' concerning the cumulative 
effects of a particular pesticide's residues and ``other substances 
that have a common mechanism of toxicity.''
    EPA has assessed the potential for oxytetracycline to share a 
common mechanism of toxicity with any other substances. Based on its 
assessment of the available toxicological data, EPA has determined that 
oxytetracycline does not share a similar toxicological profile with 
other pesticides, and no further cumulative evaluation is necessary for 
oxytetracycline.

D. Safety Factor for Infants and Children

    1. In general. Section 408(b)(2)(C) of FFDCA provides that EPA 
shall apply an additional tenfold (10X) margin of safety for infants 
and children in the case of threshold effects to account for prenatal 
and postnatal toxicity and the completeness of the database on toxicity 
and exposure unless EPA determines based on reliable data that a 
different margin of safety will be safe for infants and children. This 
additional margin of safety is commonly referred to as the FQPA Safety 
Factor (SF). In applying this provision, EPA either retains the default 
value of 10X, or uses a different additional safety factor when 
reliable

[[Page 62492]]

data available to EPA support the choice of a different factor.
    2. Prenatal and postnatal sensitivity. Considering the toxicity 
database for oxytetracycline, the mouse prenatal development study did 
not identify adverse effects up to the highest dose tested (HDT), 2,100 
mg/kg/day. In addition, the effects seen in the rat prenatal 
development study occurred only at levels above the limit dose. 
Although guideline toxicity studies do not suggest an increased 
lifestage sensitivity/susceptibility (effects above the limit dose or 
no effects at the highest doses tested), data from the literature 
suggests that developing infants and children may be more susceptible 
to oxytetracycline side-effects than adults. When oxytetracycline was 
administered orally, as a single dose, to two female infant rhesus 
monkeys, zygomatic arch bone (lateral surface of temporal bone) growth 
was inhibited for ~12.5 days with no recovery observed by 21 days. The 
delayed bone growth occurs as a result of chelation of calcium, the 
mineral needed for bone growth. When the monkeys are treated with a 
very high dose of oxytetracycline (80 mg/kg), the calcium can be bound 
up for several days, leading to a delay in bone growth during that 
short time frame. However, once the oxytetracycline levels diminish, 
bone growth continues resulting in normal bones at maturity.
    3. Conclusion. The existing database, together with the extensive 
literature and study reports available on oxytetracycline, including 
studies submitted to and reviewed by the EPA, the National Toxicology 
Program, and World Health Organization, the FDA and open literature 
studies, is adequate for characterizing toxicity and quantification of 
risk from the proposed and existing uses of oxytetracycline. EPA is 
retaining the 10X FQPA SF because of the potential for pre-natal 
toxicity. The Agency concludes that this safety factor will be 
protective of potential toxicity to infants and children based on the 
following findings:
    i. The toxicity database for oxytetracycline is complete.
    ii. There is no indication that oxytetracycline is a neurotoxic 
chemical and there is no need for a developmental neurotoxicity study 
or additional UFs to account for neurotoxicity.
    iii. There is no evidence that oxytetracycline results in increased 
susceptibility in in utero rats in the prenatal developmental studies. 
Within the toxicity database, the mouse prenatal developmental study 
did not identify adverse effects up to the highest does tested (HDT), 
2,100 mg/kg/day. Based on the adverse effects seen in infant rhesus 
monkeys after oral administration of oxytetracycline, the Food Quality 
Protection Act (FQPA) Safety Factor (SF) is being retained at 10X.
    iv. There are no residual uncertainties identified in the exposure 
databases. The dietary assessment overestimates actual exposures to 
oxytetracycline as it incorporated tolerance-level residues, default 
PFs, assumed that 100% of the proposed and existing crops are treated 
with oxytetracycline, and included high-end ground and surface drinking 
water modeling estimates. EPA made conservative (protective) 
assumptions in the ground and surface water modeling used to assess 
exposure to oxytetracycline in drinking water. These assessments will 
not underestimate the exposure and risks posed by oxytetracycline.

E. Aggregate Risks and Determination of Safety

    EPA determines whether acute and chronic dietary pesticide 
exposures are safe by comparing aggregate exposure estimates to the 
acute PAD (aPAD) and chronic PAD (cPAD). For linear cancer risks, EPA 
calculates the lifetime probability of acquiring cancer given the 
estimated aggregate exposure. Short-, intermediate-, and chronic-term 
risks are evaluated by comparing the estimated aggregate food, water, 
and residential exposure to the appropriate PODs to ensure that an 
adequate MOE exists.
    1. Acute risk. An acute aggregate risk assessment takes into 
account acute exposure estimates from dietary consumption of food and 
drinking water. No adverse effect resulting from a single oral exposure 
was identified and no acute dietary endpoint was selected. Therefore, 
oxytetracycline is not expected to pose an acute risk.
    2. Chronic risk. Using the exposure assumptions described in this 
unit for chronic exposure, EPA has concluded that chronic exposure to 
oxytetracycline from food and water will utilize 33% of the cPAD for 
children 1-2 years old, the population group receiving the greatest 
exposure. There are no residential pesticide uses for oxytetracycline.
    3. Short-term risk and Intermediate-term risk. Short-term and 
intermediate-term aggregate exposures take into account short-term 
residential exposure plus chronic exposure to food and water 
(considered to be a background exposure level) and intermediate-term 
residential exposure plus chronic exposure to food and water 
(considered to be a background exposure level), respectively. Short and 
intermediate-term adverse effects were identified; however, 
oxytetracycline is not registered for any residential pesticide uses 
that would result in short or intermediate-term residential exposures. 
Short-term risk is assessed based on short-term residential exposure 
plus chronic dietary exposure and intermediate-term risk is assessed 
based on intermediate-term residential exposure plus chronic dietary 
exposure. Because there are no short-term or intermediate-term 
residential exposures and chronic dietary exposure has already been 
assessed under the appropriately protective cPAD (which is at least as 
protective as the POD used to assess short-term risk), no further 
assessment of short-term risk is necessary, and EPA relies on the 
chronic dietary risk assessment for evaluating short-term risk for 
oxytetracycline.
    4. Aggregate cancer risk for U.S. population. Based on the lack of 
evidence of carcinogenicity in adequate carcinogenicity studies in two 
animals, oxytetracycline is not expected to pose a cancer risk to 
humans and no cancer risk assessment was necessary.
    5. Pharmaceutical aggregate risk for U.S. population. Section 408 
of the FFDCA requires EPA to consider potential sources of exposure to 
a pesticide and related substances in addition to the dietary sources 
expected to result from a pesticide use subject to the tolerance and 
determine that ``there is a reasonable certainty of no harm'' from 
those exposures. Because the Food and Drug Administration (FDA) may 
approve pharmaceutical drugs under FFDCA section 505, notwithstanding 
the possibility that some users may experience adverse side effects. 
EPA examines the impact that the additional pesticide exposures would 
have to a pharmaceutical user exposed to a related (or, in some cases, 
the same) compound in assessing the potential of harm to the 
pharmaceutical user. Where the additional pesticide exposure has no 
more than a minimal impact on the pharmaceutical user, EPA has 
concluded that it can make a reasonable certainty of no harm finding 
for the pesticide tolerances of that compound under section 408 of the 
FFDCA.
    For oxytetracycline, EPA's pesticide exposure assessment has taken 
into consideration the appropriate population, exposure route, and 
exposure duration for comparison with pharmaceutical exposure to 
oxytetracycline. EPA estimates that the pharmaceutical exposure a 
person is expected to receive from a typical therapeutic dose (25 mg/
kg/day for children) is 750 to 2,800 times greater

[[Page 62493]]

than the estimated dietary exposure from the pesticidal sources of 
oxytetracycline (0.0089334 mg/kg/day). Therefore, because the pesticide 
exposure has no more than a minimal impact on the total dose to a 
pharmaceutical user, EPA concludes that there is a reasonable certainty 
that the potential pesticide exposure will result in no harm to a 
person being treated therapeutically with oxytetracycline.
    6. Determination of safety. Based on these risk assessments, EPA 
concludes that there is a reasonable certainty that no harm will result 
to the general population, or to infants and children from aggregate 
exposure to oxytetracycline residues.

IV. Other Considerations

A. Analytical Enforcement Methodology

    Adequate enforcement methods are available for determining 
oxytetracycline residues in/on plant commodities. A high-performance 
liquid chromatography method with tandem mass spectrometry detection 
(LC/MS/MS) has been proposed for tolerance enforcement.
    The method may be requested from: Chief, Analytical Chemistry 
Branch, Environmental Science Center, 701 Mapes Rd., Ft. Meade, MD 
20755-5350; telephone number: (410) 305-2905; email address: 
[email protected].

B. International Residue Limits

    In making its tolerance decisions, EPA seeks to harmonize U.S. 
tolerances with international standards whenever possible, consistent 
with U.S. food safety standards and agricultural practices. EPA 
considers the international maximum residue limits (MRLs) established 
by the Codex Alimentarius Commission (Codex), as required by FFDCA 
section 408(b)(4). The Codex Alimentarius is a joint United Nations 
Food and Agriculture Organization/World Health Organization food 
standards program, and it is recognized as an international food safety 
standards-setting organization in trade agreements to which the United 
States is a party. EPA may establish a tolerance that is different from 
a Codex MRL; however, FFDCA section 408(b)(4) requires that EPA explain 
the reasons for departing from the Codex level. The Codex has not 
established a MRL for oxytetracycline.

C. Response to Comments

    One comment was received generally opposing the use of any 
pesticides in or on food. The Agency recognizes that some individuals 
oppose the use of pesticides in or on food, but the FFDCA authorizes 
the Agency to establish tolerances for residues of pesticides in or on 
food if the Agency determines that the tolerance is safe. EPA has 
examined all the available data and determined that there is a 
reasonable certainty that no harm will result from aggregate exposure 
to the pesticide chemical residue. The commenter has provided no 
information to support a finding that the tolerances would not be safe.

V. Conclusion

    Therefore, tolerances are established for residues of 
oxytetracycline, in or on fruit, citrus, group 10-10 at 0.01 ppm.

VI. Statutory and Executive Order Reviews

    This action establishes tolerances under FFDCA section 408(d) in 
response to a petition submitted to the Agency. The Office of 
Management and Budget (OMB) has exempted these types of actions from 
review under Executive Order 12866, entitled ``Regulatory Planning and 
Review'' (58 FR 51735, October 4, 1993). Because this action has been 
exempted from review under Executive Order 12866, this action is not 
subject to Executive Order 13211, entitled ``Actions Concerning 
Regulations That Significantly Affect Energy Supply, Distribution, or 
Use'' (66 FR 28355, May 22, 2001); Executive Order 13045, entitled 
``Protection of Children from Environmental Health Risks and Safety 
Risks'' (62 FR 19885, April 23, 1997); or Executive Order 13771, 
entitled ``Reducing Regulations and Controlling Regulatory Costs'' (82 
FR 9339, February 3, 2017). This action does not contain any 
information collections subject to OMB approval under the Paperwork 
Reduction Act (PRA) (44 U.S.C. 3501 et seq.), nor does it require any 
special considerations under Executive Order 12898, entitled ``Federal 
Actions to Address Environmental Justice in Minority Populations and 
Low-Income Populations'' (59 FR 7629, February 16, 1994).
    Since tolerances and exemptions that are established on the basis 
of a petition under FFDCA section 408(d), such as the tolerance in this 
final rule, do not require the issuance of a proposed rule, the 
requirements of the Regulatory Flexibility Act (RFA) (5 U.S.C. 601 et 
seq.), do not apply.
    This action directly regulates growers, food processors, food 
handlers, and food retailers, not States or tribes, nor does this 
action alter the relationships or distribution of power and 
responsibilities established by Congress in the preemption provisions 
of FFDCA section 408(n)(4). As such, the Agency has determined that 
this action will not have a substantial direct effect on States or 
tribal governments, on the relationship between the national government 
and the States or tribal governments, or on the distribution of power 
and responsibilities among the various levels of government or between 
the Federal Government and Indian tribes. Thus, the Agency has 
determined that Executive Order 13132, entitled ``Federalism'' (64 FR 
43255, August 10, 1999) and Executive Order 13175, entitled 
``Consultation and Coordination with Indian Tribal Governments'' (65 FR 
67249, November 9, 2000) do not apply to this action. In addition, this 
action does not impose any enforceable duty or contain any unfunded 
mandate as described under Title II of the Unfunded Mandates Reform Act 
(UMRA) (2 U.S.C. 1501 et seq.).
    This action does not involve any technical standards that would 
require Agency consideration of voluntary consensus standards pursuant 
to section 12(d) of the National Technology Transfer and Advancement 
Act (NTTAA) (15 U.S.C. 272 note).

VII. Congressional Review Act

    Pursuant to the Congressional Review Act (5 U.S.C. 801 et seq.), 
EPA will submit a report containing this rule and other required 
information to the U.S. Senate, the U.S. House of Representatives, and 
the Comptroller General of the United States prior to publication of 
the rule in the Federal Register. This action is not a ``major rule'' 
as defined by 5 U.S.C. 804(2).

List of Subjects in 40 CFR Part 180

    Environmental protection, Administrative practice and procedure, 
Agricultural commodities, Pesticides and pests, Reporting and 
recordkeeping requirements.

    Dated: November 23, 2018.
Michael Goodis,
Director, Registration Division, Office of Pesticide Program.
    Therefore, 40 CFR chapter I is amended as follows:

PART 180--[AMENDED]

0
1. The authority citation for part 180 continues to read as follows:

    Authority: 21 U.S.C. 321(q), 346a and 371.

0
2. In Sec.  180.337, add alphabetically the entry for ``Fruit, citrus, 
group 10-10'' to the table in paragraph (a) to read as follows:

[[Page 62494]]

Sec.  180.337   Oxytetracycline; tolerances for residues.

    (a) * * *

------------------------------------------------------------------------
                                                             Parts per
                        Commodity                             million
------------------------------------------------------------------------
 
                                * * * * *
Fruit, citrus, group 10-10..............................            0.01
 
                                * * * * *
------------------------------------------------------------------------

* * * * *
[FR Doc. 2018-26343 Filed 12-3-18; 8:45 am]
 BILLING CODE 6560-50-P



                           Federal Register / Vol. 83, No. 233 / Tuesday, December 4, 2018 / Rules and Regulations                                                                                      62489

     § 180.960 Polymers; exemptions from the
     requirement of a tolerance.
     *        *        *        *         *

                                                                                            Polymer                                                                                                CAS No.


              *                    *                                *                                 *                                 *                                *                          *
     Propanesulfonic acid, 2-methyl-2-[(1-oxo-2-propen-1-y1)amino]-, homopolymer, sodium salt, minimum number average molec-
       ular weight (in amu) 14,000 .............................................................................................................................................................   55141–01–0

             *                    *                            *                                 *                                 *                                *                               *
     1-Propanesulfonic acid, 2-methyl-2-[(1-oxo-2-propen-1-y1)amino]-, sodium salt (1:1), homopolymer, minimum number average
       molecular weight (in amu) 14,000 ...................................................................................................................................................        35641–59–9

                  *                              *                             *                              *                             *                              *                        *



     [FR Doc. 2018–26347 Filed 12–3–18; 8:45 am]                            FOR FURTHER INFORMATION CONTACT:                                        proper receipt by EPA, you must
     BILLING CODE 6560–50–P                                                 Michael Goodis, Registration Division                                   identify docket ID number EPA–HQ–
                                                                            (7505P), Office of Pesticide Programs,                                  OPP–2015–0820 in the subject line on
                                                                            Environmental Protection Agency, 1200                                   the first page of your submission. All
     ENVIRONMENTAL PROTECTION                                               Pennsylvania Ave. NW, Washington, DC                                    objections and requests for a hearing
     AGENCY                                                                 20460–0001; main telephone number:                                      must be in writing and must be received
                                                                            (703) 305–7090; email address:                                          by the Hearing Clerk on or before
     40 CFR Part 180                                                        RDFRNotices@epa.gov.                                                    February 4, 2019. Addresses for mail
                                                                            SUPPLEMENTARY INFORMATION:                                              and hand delivery of objections and
     [EPA–HQ–OPP–2015–0820; FRL–9986–87]
                                                                                                                                                    hearing requests are provided in 40 CFR
                                                                            I. General Information                                                  178.25(b).
     Oxytetracycline; Pesticide Tolerances
                                                                            A. Does this action apply to me?                                          In addition to filing an objection or
     AGENCY:  Environmental Protection                                                                                                              hearing request with the Hearing Clerk
     Agency (EPA).                                                             You may be potentially affected by                                   as described in 40 CFR part 178, please
                                                                            this action if you are an agricultural                                  submit a copy of the filing (excluding
     ACTION: Final rule.
                                                                            producer, food manufacturer, or                                         any Confidential Business Information
     SUMMARY:   This regulation establishes                                 pesticide manufacturer. The following                                   (CBI)) for inclusion in the public docket.
     tolerances for residues of                                             list of North American Industrial                                       Information not marked confidential
     oxytetracycline in or on fruit, citrus,                                Classification System (NAICS) codes is                                  pursuant to 40 CFR part 2 may be
     crop group 10–10. Geo Logic                                            not intended to be exhaustive, but rather                               disclosed publicly by EPA without prior
     Corporation requested these tolerances                                 provides a guide to help readers                                        notice. Submit the non-CBI copy of your
     under the Federal Food, Drug, and                                      determine whether this document                                         objection or hearing request, identified
     Cosmetic Act (FFDCA).                                                  applies to them. Potentially affected                                   by docket ID number EPA–HQ–OPP–
     DATES: This regulation is effective
                                                                            entities may include:                                                   2015–0820, by one of the following
                                                                               • Crop production (NAICS code 111).                                  methods:
     December 4, 2018. Objections and
                                                                               • Animal production (NAICS code                                        • Federal eRulemaking Portal: http://
     requests for hearings must be received
                                                                            112).                                                                   www.regulations.gov. Follow the online
     on or before February 4, 2019 and must
                                                                               • Food manufacturing (NAICS code                                     instructions for submitting comments.
     be filed in accordance with the
                                                                            311).                                                                   Do not submit electronically any
     instructions provided in 40 CFR part                                      • Pesticide manufacturing (NAICS
     178 (see also Unit I.C. of the                                                                                                                 information you consider to be CBI or
                                                                            code 32532).                                                            other information whose disclosure is
     SUPPLEMENTARY INFORMATION).
                                                                            B. How can I get electronic access to                                   restricted by statute.
     ADDRESSES: The docket for this action,                                                                                                           • Mail: OPP Docket, Environmental
     identified by docket identification (ID)                               other related information?
                                                                                                                                                    Protection Agency Docket Center (EPA/
     number EPA–HQ–OPP–2015–0820, is                                           You may access a frequently updated                                  DC), (28221T), 1200 Pennsylvania Ave.,
     available at http://www.regulations.gov                                electronic version of EPA’s tolerance                                   NW, Washington, DC 20460–0001.
     or at the Office of Pesticide Programs                                 regulations at 40 CFR part 180 through                                    • Hand Delivery: To make special
     Regulatory Public Docket (OPP Docket)                                  the Government Printing Office’s e-CFR                                  arrangements for hand delivery or
     in the Environmental Protection Agency                                 site at http://www.ecfr.gov/cgi-bin/text-                               delivery of boxed information, please
     Docket Center (EPA/DC), West William                                   idx?&c=ecfr&tpl=/ecfrbrowse/Title40/                                    follow the instructions at http://
     Jefferson Clinton Bldg., Rm. 3334, 1301                                40tab_02.tpl.                                                           www.epa.gov/dockets/contacts.html.
     Constitution Ave. NW, Washington, DC                                                                                                             Additional instructions on
     20460–0001. The Public Reading Room                                    C. How can I file an objection or hearing
                                                                            request?                                                                commenting or visiting the docket,
     is open from 8:30 a.m. to 4:30 p.m.,                                                                                                           along with more information about
     Monday through Friday, excluding legal                                   Under FFDCA section 408(g), 21                                        dockets generally, is available at http://
     holidays. The telephone number for the                                 U.S.C. 346a, any person may file an                                     www.epa.gov/dockets.
     Public Reading Room is (202) 566–1744,                                 objection to any aspect of this regulation
     and the telephone number for the OPP                                   and may also request a hearing on those                                 II. Summary of Petitioned-For
     Docket is (703) 305–5805. Please review                                objections. You must file your objection                                Tolerance
     the visitor instructions and additional                                or request a hearing on this regulation                                    In the Federal Register of March 16,
     information about the docket available                                 in accordance with the instructions                                     2016 (81 FR 14030) (FRL–9942–86),
     at http://www.epa.gov/dockets.                                         provided in 40 CFR part 178. To ensure                                  EPA issued a document pursuant to


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     62490            Federal Register / Vol. 83, No. 233 / Tuesday, December 4, 2018 / Rules and Regulations

     FFDCA section 408(d)(3), 21 U.S.C.                      tolerances established by this action.                   The Agency has classified
     346a(d)(3), announcing the filing of a                  EPA’s assessment of exposures and risks               oxytetracycline as ‘‘Group D: Not
     pesticide petition (PP 5F8415) by Geo                   associated with oxytetracycline follows.              Classifiable as to Human
     Logic Corporation, P.O. Box 3091,                                                                             Carcinogenicity’’. Oxytetracycline has
                                                             A. Toxicological Profile
     Tequesta, FL 33469. The petition                                                                              low acute toxicity, being Toxicity
     requested that 40 CFR 180.337 be                           EPA has evaluated the available                    Category IV for oral toxicity, the only
     amended by establishing tolerances for                  toxicity data and considered its validity,            acute lethality study available in the
     residues of the bactericide                             completeness, and reliability as well as              database.
     oxytetracycline,                                        the relationship of the results of the                   Specific information on the studies
     (4S,4aR,5S,5aR,6S,12aS)-4-                              studies to human risk. EPA has also                   received and the nature of the adverse
     (dimethylamino)-1,4,4a,5,5a,6,11,12a-                   considered available information                      effects caused by oxytetracycline as well
     octahydro-3,5,6,10,12,12a-hexahydroxy-                  concerning the variability of the                     as the no-observed-adverse-effect-level
     6-methyl-1,11-dioxo-2-                                  sensitivities of major identifiable                   (NOAEL) and the lowest-observed-
     naphthacenecarboxamide, in or on fruit,                 subgroups of consumers, including                     adverse-effect-level (LOAEL) from the
     citrus, crop group 10–10 at 0.01 parts                  infants and children.                                 toxicity studies can be found at http://
     per million (ppm).                                         At high doses, the target organ of                 www.regulations.gov in document
        That document referenced a summary                   tetracycline toxicity is the liver. The               ‘‘Oxytetracycline/Oxytetracycline
     of the petition prepared by Geo Logic                   most common effect in intermediate- or                Hydrochloride/Oxytetracycline Calcium:
     Corporation, the registrant, which is                   long-term oral exposures in rats and                  Draft Human Health Risk Assessment in
     available in the docket, http://                        mice was a decrease in body weight. In                Support of Registration Review and
     www.regulations.gov. One comment was                    the prenatal developmental study in                   Tolerance Establishment in/on Citrus
     received on the notice of filing. EPA’s                 rats, clinical signs included increased               Fruit Crop Group 10–10’’ in docket ID
     response to this comment is discussed                   incidences of respiratory signs and                   number EPA–HQ–OPP–2015–0820.
     in Unit IV.C.                                           rough hair coat in the dams, in addition
                                                             to increased mortality and a decreased                B. Toxicological Points of Departure/
     III. Aggregate Risk Assessment and                      percentage of dams found pregnant.                    Levels of Concern
     Determination of Safety                                 Also identified was a decrease in fetal                  Once a pesticide’s toxicological
        Section 408(b)(2)(A)(i) of FFDCA                     body weight. In the mouse prenatal                    profile is determined, EPA identifies
     allows EPA to establish a tolerance (the                developmental study, there was no                     toxicological points of departure (POD)
     legal limit for a pesticide chemical                    toxicity identified in the dams or                    and levels of concern to use in
     residue in or on a food) only if EPA                    fetuses. In all of the above animal                   evaluating the risk posed by human
     determines that the tolerance is ‘‘safe.’’              studies, adverse effects were seen at                 exposure to the pesticide. For hazards
     Section 408(b)(2)(A)(ii) of FFDCA                       doses that exceed the limit dose. There               that have a threshold below which there
     defines ‘‘safe’’ to mean that ‘‘there is a              is no adequate reproductive toxicity                  is no appreciable risk, the toxicological
     reasonable certainty that no harm will                  study available in the database,                      POD is used as the basis for derivation
     result from aggregate exposure to the                   however, the data requirement was                     of reference values for risk assessment.
     pesticide chemical residue, including                   waived based on the lack of                           PODs are developed based on a careful
     all anticipated dietary exposures and all               reproductive effects reported during the              analysis of the doses in each
     other exposures for which there is                      history of use as a drug. No evidence of              toxicological study to determine the
     reliable information.’’ This includes                   neurotoxicity was observed in any                     dose at which no adverse effects are
     exposure through drinking water and in                  guideline study. A rat immunotoxicity                 observed (the NOAEL) and the lowest
     residential settings but does not include               study demonstrated                                    dose at which adverse effects of concern
     occupational exposure. Section                          immunosuppression at doses lower than                 are identified (the LOAEL). Uncertainty/
     408(b)(2)(C) of FFDCA requires EPA to                   those for systemic toxicity.                          safety factors are used in conjunction
     give special consideration to exposure                  Tetracyclines are known to inhibit bone               with the POD to calculate a safe
     of infants and children to the pesticide                growth in developing tissue. When                     exposure level—generally referred to as
     chemical residue in establishing a                      oxytetracycline was administered orally               a population-adjusted dose (PAD) or a
     tolerance and to ‘‘ensure that there is a               as a single dose to two female infant                 reference dose (RfD)—and a safe margin
     reasonable certainty that no harm will                  rhesus monkeys, zygomatic arch bone                   of exposure (MOE). For non-threshold
     result to infants and children from                     (lateral surface of temporal bone) growth             risks, the Agency assumes that any
     aggregate exposure to the pesticide                     was inhibited for ∼12.5 days with no                  amount of exposure will lead to some
     chemical residue. . . .’’                               recovery observed by 21 days. Effects on              degree of risk. Thus, the Agency
        Consistent with FFDCA section                        bone growth are consistent with                       estimates risk in terms of the probability
     408(b)(2)(D), and the factors specified in              oxytetracycline’s ability to chelate                  of an occurrence of the adverse effect
     FFDCA section 408(b)(2)(D), EPA has                     calcium, and so are not unexpected.                   expected in a lifetime. For more
     reviewed the available scientific data                  Bone developmental effects were also                  information on the general principles
     and other relevant information in                       observed after administration of                      EPA uses in risk characterization and a
     support of this action. EPA has                         chlortetracycline and                                 complete description of the risk
     sufficient data to assess the hazards of                demethylchlortetracycline in adult                    assessment process, see http://
     and to make a determination on                          rhesus monkeys highlighting the                       www2.epa.gov/pesticide-science-and-
     aggregate exposure for oxytetracycline                  consistency of tetracycline treatment                 assessing-pesticide-risks/assessing-
     including exposure resulting from the                   across this class of chemicals.                       human-health-risk-pesticides.




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                          Federal Register / Vol. 83, No. 233 / Tuesday, December 4, 2018 / Rules and Regulations                                                       62491

        TABLE 1—SUMMARY OF TOXICOLOGICAL DOSES AND ENDPOINTS FOR OXYTETRACYCLINE FOR USE IN HUMAN HEALTH
                                                RISK ASSESSMENT
                                                         Point of departure        RfD, PAD, LOC for
              Exposure/scenario                           and uncertainty/                                                         Study and toxicological effects
                                                                                    risk assessment
                                                           safety factors

     Acute dietary (All populations) ..                None selected .........    N/A ...........................   No appropriate endpoint for females age 13–49 or for the gen-
                                                                                                                      eral population attributable to a single exposure.

     Chronic dietary (All populations)                 NOAEL= 100 mg/kg/          Chronic RfD = 1 mg/               WOE from 3 rats and 2 dogs chronic studies.
                                                        day.                        kg/day.                         The NOAEL of 100 mg/kg/day was derived from these studies
                                                       UFA = 10x                  cPAD = 0.10 mg/kg/                  and no specific LOAEL was established.
                                                       UFH = 10x                    day
                                                       FQPA SF = 10x

     Cancer .......................................                    Classified as a Group D carcinogen—not classifiable as to human carcinogenicity.
       FQPA SF = Food Quality Protection Act Safety Factor. LOAEL = lowest-observed-adverse-effect-level. LOC = level of concern. mg/kg/day =
     milligram/kilogram/day. MOE = margin of exposure. NOAEL = no-observed-adverse-effect-level. RfD = reference dose. UFA = extrapolation from
     animal to human (interspecies). UFH = potential variation in sensitivity among members of the human population (intraspecies).


     C. Exposure Assessment                                             for oxytetracycline in drinking water.                      minimal impact on the total dose to the
        1. Dietary exposure from food and                               These simulation models take into                           pharmaceutical patient, and thus
     feed uses. In evaluating dietary                                   account data on the physical, chemical,                     concludes that there is a reasonable
     exposure to oxytetracycline, EPA                                   and fate/transport characteristics of                       certainty that the additional exposure
     considered exposure under the                                      oxytetracycline. Further information                        from pesticide uses of oxytetracycline
     petitioned-for tolerances as well as all                           regarding EPA drinking water models                         would result in no harm finding to a
     existing oxytetracycline tolerances in 40                          used in pesticide exposure assessment                       user being treated therapeutically.
     CFR 180.337. EPA assessed dietary                                  can be found at http://www2.epa.gov/                           4. Cumulative effects from substances
     exposures from oxytetracycline in food                             pesticide-science-and-assessing-                            with a common mechanism of toxicity.
     as follows:                                                        pesticide-risks/about-water-exposure-                       Section 408(b)(2)(D)(v) of FFDCA
        i. Acute exposure. Quantitative acute                           models-used-pesticide.                                      requires that, when considering whether
     dietary exposure and risk assessments                                 Based on the Pesticide Root Zone                         to establish, modify, or revoke a
     are performed for a food-use pesticide,                            Model version 5.02/Variable Volume                          tolerance, the Agency consider
     if a toxicological study has indicated the                         Water Body Model (VVWM V1.02) and                           ‘‘available information’’ concerning the
     possibility of an effect of concern                                Pesticide Root Zone Model Ground                            cumulative effects of a particular
     occurring as a result of a 1-day or single                         Water (PRZM GW), EDWCs of                                   pesticide’s residues and ‘‘other
     exposure. No such effects were                                     oxytetracycline for chronic exposures                       substances that have a common
     identified in the toxicological studies                            for non-cancer assessments are                              mechanism of toxicity.’’
     for oxytetracycline; therefore, a                                  estimated to be 2.85 ppb for surface
                                                                        water and 0.323 ppb for ground water.                          EPA has assessed the potential for
     quantitative acute dietary exposure                                                                                            oxytetracycline to share a common
     assessment is unnecessary.                                            Modeled estimates of drinking water
                                                                        concentrations were directly entered                        mechanism of toxicity with any other
        ii. Chronic exposure. In conducting
                                                                        into the dietary exposure model. For                        substances. Based on its assessment of
     the chronic dietary exposure assessment
                                                                        chronic dietary risk assessment, the                        the available toxicological data, EPA has
     EPA 2003–2008 food consumption data
                                                                        water concentration of value 2.85 ppb                       determined that oxytetracycline does
     from the USDA’s National Health and
                                                                        was used to assess the contribution to                      not share a similar toxicological profile
     Nutrition Examination Survey/What We
                                                                        drinking water.                                             with other pesticides, and no further
     Eat in America. As to residue levels in
                                                                           3. From non-dietary exposure. The                        cumulative evaluation is necessary for
     food, EPA used tolerance-level residues,
                                                                        term ‘‘residential exposure’’ is used in                    oxytetracycline.
     default processing factors (PFs), and
     assumed 100 percent crop treated (PCT).                            this document to refer to non-                              D. Safety Factor for Infants and
        iii. Cancer. Based on the data                                  occupational, non-dietary exposure                          Children
     summarized in Unit III.A., EPA has                                 (e.g., for lawn and garden pest control,
     concluded that oxytetracycline does not                            indoor pest control, termiticides, and                        1. In general. Section 408(b)(2)(C) of
     pose a cancer risk to humans. Therefore,                           flea and tick control on pets).                             FFDCA provides that EPA shall apply
     a dietary exposure assessment for the                              Oxytetracycline is not registered for any                   an additional tenfold (10X) margin of
     purpose of assessing cancer risk is                                specific use patterns that would result                     safety for infants and children in the
     unnecessary.                                                       in residential exposure.                                    case of threshold effects to account for
        iv. Anticipated residue and PCT                                    Tetracycline hydrochloride (97%                          prenatal and postnatal toxicity and the
     information. EPA did not use                                       chemical similarity to oxytetracycline)                     completeness of the database on toxicity
     anticipated residue and/or PCT                                     is approved by FDA for use as an oral                       and exposure unless EPA determines
     information in the dietary assessment                              antibiotic to treat certain bacterial and                   based on reliable data that a different
     for oxytetracycline. Tolerance-level                               parasitic infections. EPA examined the                      margin of safety will be safe for infants
     residues and/or 100 PCT were assumed                               impact that additional pesticide                            and children. This additional margin of
     for all food commodities.                                          exposures to oxytetracycline would                          safety is commonly referred to as the
        2. Dietary exposure from drinking                               have on a person who has been                               FQPA Safety Factor (SF). In applying
     water. The Agency used screening-level                             prescribed the antibiotic. EPA                              this provision, EPA either retains the
     water exposure models in the dietary                               determined that the additional pesticide                    default value of 10X, or uses a different
     exposure analysis and risk assessment                              exposure would not have more than a                         additional safety factor when reliable


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     62492            Federal Register / Vol. 83, No. 233 / Tuesday, December 4, 2018 / Rules and Regulations

     data available to EPA support the choice                Based on the adverse effects seen in                  term adverse effects were identified;
     of a different factor.                                  infant rhesus monkeys after oral                      however, oxytetracycline is not
       2. Prenatal and postnatal sensitivity.                administration of oxytetracycline, the                registered for any residential pesticide
     Considering the toxicity database for                   Food Quality Protection Act (FQPA)                    uses that would result in short or
     oxytetracycline, the mouse prenatal                     Safety Factor (SF) is being retained at               intermediate-term residential exposures.
     development study did not identify                      10X.                                                  Short-term risk is assessed based on
     adverse effects up to the highest dose                    iv. There are no residual uncertainties             short-term residential exposure plus
     tested (HDT), 2,100 mg/kg/day. In                       identified in the exposure databases.                 chronic dietary exposure and
     addition, the effects seen in the rat                   The dietary assessment overestimates                  intermediate-term risk is assessed based
     prenatal development study occurred                     actual exposures to oxytetracycline as it             on intermediate-term residential
     only at levels above the limit dose.                    incorporated tolerance-level residues,                exposure plus chronic dietary exposure.
     Although guideline toxicity studies do                  default PFs, assumed that 100% of the                 Because there are no short-term or
     not suggest an increased lifestage                      proposed and existing crops are treated               intermediate-term residential exposures
     sensitivity/susceptibility (effects above               with oxytetracycline, and included                    and chronic dietary exposure has
     the limit dose or no effects at the highest             high-end ground and surface drinking                  already been assessed under the
     doses tested), data from the literature                 water modeling estimates. EPA made                    appropriately protective cPAD (which is
     suggests that developing infants and                    conservative (protective) assumptions in              at least as protective as the POD used to
     children may be more susceptible to                     the ground and surface water modeling                 assess short-term risk), no further
     oxytetracycline side-effects than adults.               used to assess exposure to                            assessment of short-term risk is
     When oxytetracycline was administered                   oxytetracycline in drinking water. These              necessary, and EPA relies on the
     orally, as a single dose, to two female                 assessments will not underestimate the                chronic dietary risk assessment for
     infant rhesus monkeys, zygomatic arch                   exposure and risks posed by                           evaluating short-term risk for
     bone (lateral surface of temporal bone)                 oxytetracycline.                                      oxytetracycline.
     growth was inhibited for ∼12.5 days                                                                              4. Aggregate cancer risk for U.S.
                                                             E. Aggregate Risks and Determination of
     with no recovery observed by 21 days.                                                                         population. Based on the lack of
                                                             Safety
     The delayed bone growth occurs as a                                                                           evidence of carcinogenicity in adequate
     result of chelation of calcium, the                        EPA determines whether acute and                   carcinogenicity studies in two animals,
     mineral needed for bone growth. When                    chronic dietary pesticide exposures are               oxytetracycline is not expected to pose
     the monkeys are treated with a very                     safe by comparing aggregate exposure                  a cancer risk to humans and no cancer
     high dose of oxytetracycline (80 mg/kg),                estimates to the acute PAD (aPAD) and                 risk assessment was necessary.
     the calcium can be bound up for several                 chronic PAD (cPAD). For linear cancer                    5. Pharmaceutical aggregate risk for
     days, leading to a delay in bone growth                 risks, EPA calculates the lifetime                    U.S. population. Section 408 of the
     during that short time frame. However,                  probability of acquiring cancer given the             FFDCA requires EPA to consider
     once the oxytetracycline levels                         estimated aggregate exposure. Short-,                 potential sources of exposure to a
     diminish, bone growth continues                         intermediate-, and chronic-term risks                 pesticide and related substances in
     resulting in normal bones at maturity.                  are evaluated by comparing the                        addition to the dietary sources expected
       3. Conclusion. The existing database,                 estimated aggregate food, water, and                  to result from a pesticide use subject to
     together with the extensive literature                  residential exposure to the appropriate               the tolerance and determine that ‘‘there
     and study reports available on                          PODs to ensure that an adequate MOE                   is a reasonable certainty of no harm’’
     oxytetracycline, including studies                      exists.                                               from those exposures. Because the Food
     submitted to and reviewed by the EPA,                      1. Acute risk. An acute aggregate risk             and Drug Administration (FDA) may
     the National Toxicology Program, and                    assessment takes into account acute                   approve pharmaceutical drugs under
     World Health Organization, the FDA                      exposure estimates from dietary                       FFDCA section 505, notwithstanding
     and open literature studies, is adequate                consumption of food and drinking                      the possibility that some users may
     for characterizing toxicity and                         water. No adverse effect resulting from               experience adverse side effects. EPA
     quantification of risk from the proposed                a single oral exposure was identified                 examines the impact that the additional
     and existing uses of oxytetracycline.                   and no acute dietary endpoint was                     pesticide exposures would have to a
     EPA is retaining the 10X FQPA SF                        selected. Therefore, oxytetracycline is               pharmaceutical user exposed to a
     because of the potential for pre-natal                  not expected to pose an acute risk.                   related (or, in some cases, the same)
     toxicity. The Agency concludes that this                   2. Chronic risk. Using the exposure                compound in assessing the potential of
     safety factor will be protective of                     assumptions described in this unit for                harm to the pharmaceutical user. Where
     potential toxicity to infants and children              chronic exposure, EPA has concluded                   the additional pesticide exposure has no
     based on the following findings:                        that chronic exposure to oxytetracycline              more than a minimal impact on the
       i. The toxicity database for                          from food and water will utilize 33% of               pharmaceutical user, EPA has
     oxytetracycline is complete.                            the cPAD for children 1–2 years old, the              concluded that it can make a reasonable
       ii. There is no indication that                       population group receiving the greatest               certainty of no harm finding for the
     oxytetracycline is a neurotoxic chemical                exposure. There are no residential                    pesticide tolerances of that compound
     and there is no need for a                              pesticide uses for oxytetracycline.                   under section 408 of the FFDCA.
     developmental neurotoxicity study or                       3. Short-term risk and Intermediate-                  For oxytetracycline, EPA’s pesticide
     additional UFs to account for                           term risk. Short-term and intermediate-               exposure assessment has taken into
     neurotoxicity.                                          term aggregate exposures take into                    consideration the appropriate
       iii. There is no evidence that                        account short-term residential exposure               population, exposure route, and
     oxytetracycline results in increased                    plus chronic exposure to food and water               exposure duration for comparison with
     susceptibility in in utero rats in the                  (considered to be a background                        pharmaceutical exposure to
     prenatal developmental studies. Within                  exposure level) and intermediate-term                 oxytetracycline. EPA estimates that the
     the toxicity database, the mouse                        residential exposure plus chronic                     pharmaceutical exposure a person is
     prenatal developmental study did not                    exposure to food and water (considered                expected to receive from a typical
     identify adverse effects up to the highest              to be a background exposure level),                   therapeutic dose (25 mg/kg/day for
     does tested (HDT), 2,100 mg/kg/day.                     respectively. Short and intermediate-                 children) is 750 to 2,800 times greater


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                      Federal Register / Vol. 83, No. 233 / Tuesday, December 4, 2018 / Rules and Regulations                                             62493

     than the estimated dietary exposure                     some individuals oppose the use of                    in the preemption provisions of FFDCA
     from the pesticidal sources of                          pesticides in or on food, but the FFDCA               section 408(n)(4). As such, the Agency
     oxytetracycline (0.0089334 mg/kg/day).                  authorizes the Agency to establish                    has determined that this action will not
     Therefore, because the pesticide                        tolerances for residues of pesticides in              have a substantial direct effect on States
     exposure has no more than a minimal                     or on food if the Agency determines that              or tribal governments, on the
     impact on the total dose to a                           the tolerance is safe. EPA has examined               relationship between the national
     pharmaceutical user, EPA concludes                      all the available data and determined                 government and the States or tribal
     that there is a reasonable certainty that               that there is a reasonable certainty that             governments, or on the distribution of
     the potential pesticide exposure will                   no harm will result from aggregate                    power and responsibilities among the
     result in no harm to a person being                     exposure to the pesticide chemical                    various levels of government or between
     treated therapeutically with                            residue. The commenter has provided                   the Federal Government and Indian
     oxytetracycline.                                        no information to support a finding that              tribes. Thus, the Agency has determined
        6. Determination of safety. Based on                 the tolerances would not be safe.                     that Executive Order 13132, entitled
     these risk assessments, EPA concludes                   V. Conclusion                                         ‘‘Federalism’’ (64 FR 43255, August 10,
     that there is a reasonable certainty that                                                                     1999) and Executive Order 13175,
     no harm will result to the general                        Therefore, tolerances are established               entitled ‘‘Consultation and Coordination
     population, or to infants and children                  for residues of oxytetracycline, in or on             with Indian Tribal Governments’’ (65 FR
     from aggregate exposure to                              fruit, citrus, group 10–10 at 0.01 ppm.               67249, November 9, 2000) do not apply
     oxytetracycline residues.                               VI. Statutory and Executive Order                     to this action. In addition, this action
                                                             Reviews                                               does not impose any enforceable duty or
     IV. Other Considerations
                                                                                                                   contain any unfunded mandate as
                                                                This action establishes tolerances
     A. Analytical Enforcement Methodology                   under FFDCA section 408(d) in                         described under Title II of the Unfunded
        Adequate enforcement methods are                     response to a petition submitted to the               Mandates Reform Act (UMRA) (2 U.S.C.
     available for determining                               Agency. The Office of Management and                  1501 et seq.).
     oxytetracycline residues in/on plant                    Budget (OMB) has exempted these types                    This action does not involve any
     commodities. A high-performance                         of actions from review under Executive                technical standards that would require
     liquid chromatography method with                       Order 12866, entitled ‘‘Regulatory                    Agency consideration of voluntary
     tandem mass spectrometry detection                      Planning and Review’’ (58 FR 51735,                   consensus standards pursuant to section
     (LC/MS/MS) has been proposed for                        October 4, 1993). Because this action                 12(d) of the National Technology
     tolerance enforcement.                                  has been exempted from review under                   Transfer and Advancement Act
        The method may be requested from:                    Executive Order 12866, this action is                 (NTTAA) (15 U.S.C. 272 note).
     Chief, Analytical Chemistry Branch,                     not subject to Executive Order 13211,                 VII. Congressional Review Act
     Environmental Science Center, 701                       entitled ‘‘Actions Concerning
     Mapes Rd., Ft. Meade, MD 20755–5350;                    Regulations That Significantly Affect                   Pursuant to the Congressional Review
     telephone number: (410) 305–2905;                       Energy Supply, Distribution, or Use’’ (66             Act (5 U.S.C. 801 et seq.), EPA will
     email address: residuemethods@                          FR 28355, May 22, 2001); Executive                    submit a report containing this rule and
     epa.gov.                                                Order 13045, entitled ‘‘Protection of                 other required information to the U.S.
                                                             Children from Environmental Health                    Senate, the U.S. House of
     B. International Residue Limits
                                                             Risks and Safety Risks’’ (62 FR 19885,                Representatives, and the Comptroller
        In making its tolerance decisions, EPA               April 23, 1997); or Executive Order                   General of the United States prior to
     seeks to harmonize U.S. tolerances with                 13771, entitled ‘‘Reducing Regulations                publication of the rule in the Federal
     international standards whenever                        and Controlling Regulatory Costs’’ (82                Register. This action is not a ‘‘major
     possible, consistent with U.S. food                     FR 9339, February 3, 2017). This action               rule’’ as defined by 5 U.S.C. 804(2).
     safety standards and agricultural                       does not contain any information
     practices. EPA considers the                            collections subject to OMB approval                   List of Subjects in 40 CFR Part 180
     international maximum residue limits                    under the Paperwork Reduction Act                       Environmental protection,
     (MRLs) established by the Codex                         (PRA) (44 U.S.C. 3501 et seq.), nor does              Administrative practice and procedure,
     Alimentarius Commission (Codex), as                     it require any special considerations                 Agricultural commodities, Pesticides
     required by FFDCA section 408(b)(4).                    under Executive Order 12898, entitled                 and pests, Reporting and recordkeeping
     The Codex Alimentarius is a joint                       ‘‘Federal Actions to Address                          requirements.
     United Nations Food and Agriculture                     Environmental Justice in Minority
     Organization/World Health                               Populations and Low-Income                              Dated: November 23, 2018.
     Organization food standards program,                    Populations’’ (59 FR 7629, February 16,               Michael Goodis,
     and it is recognized as an international                1994).                                                Director, Registration Division, Office of
     food safety standards-setting                              Since tolerances and exemptions that               Pesticide Program.
     organization in trade agreements to                     are established on the basis of a petition              Therefore, 40 CFR chapter I is
     which the United States is a party. EPA                 under FFDCA section 408(d), such as                   amended as follows:
     may establish a tolerance that is                       the tolerance in this final rule, do not
     different from a Codex MRL; however,                    require the issuance of a proposed rule,              PART 180—[AMENDED]
     FFDCA section 408(b)(4) requires that                   the requirements of the Regulatory
     EPA explain the reasons for departing                   Flexibility Act (RFA) (5 U.S.C. 601 et                ■ 1. The authority citation for part 180
     from the Codex level. The Codex has not                 seq.), do not apply.                                  continues to read as follows:
     established a MRL for oxytetracycline.                     This action directly regulates growers,
                                                                                                                       Authority: 21 U.S.C. 321(q), 346a and 371.
                                                             food processors, food handlers, and food
     C. Response to Comments                                 retailers, not States or tribes, nor does             ■ 2. In § 180.337, add alphabetically the
       One comment was received generally                    this action alter the relationships or                entry for ‘‘Fruit, citrus, group 10–10’’ to
     opposing the use of any pesticides in or                distribution of power and                             the table in paragraph (a) to read as
     on food. The Agency recognizes that                     responsibilities established by Congress              follows:


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     62494            Federal Register / Vol. 83, No. 233 / Tuesday, December 4, 2018 / Rules and Regulations

     § 180.337 Oxytetracycline; tolerances for          on the suspension date or for further                      public comment procedures under 5
     residues.                                          information, contact Adrienne L.                           U.S.C. 553(b), are impracticable and
        (a) * * *                                       Sheldon, PE, CFM, Federal Insurance                        unnecessary because communities listed
                                                        and Mitigation Administration, Federal                     in this final rule have been adequately
                                         Parts per      Emergency Management Agency, 400 C                         notified.
                Commodity                  million      Street SW, Washington, DC 20472, (202)                        Each community receives 6-month,
                                                        212–3966.                                                  90-day, and 30-day notification letters
     *           *        *          *        *         SUPPLEMENTARY     INFORMATION: The NFIP                    addressed to the Chief Executive Officer
                                                        enables property owners to purchase                        stating that the community will be
     Fruit, citrus, group 10–10 .....              0.01 Federal flood insurance that is not                        suspended unless the required
                                                        otherwise generally available from                         floodplain management measures are
     *           *        *          *        *         private insurers. In return, communities                   met prior to the effective suspension
                                                        agree to adopt and administer local                        date. Since these notifications were
                                                        floodplain management measures aimed                       made, this final rule may take effect
     *      *       *     *     *                       at protecting lives and new construction                   within less than 30 days.
     [FR Doc. 2018–26343 Filed 12–3–18; 8:45 am]                                                                      National Environmental Policy Act.
                                                        from future flooding. Section 1315 of
     BILLING CODE 6560–50–P
                                                        the National Flood Insurance Act of                        FEMA has determined that the
                                                        1968, as amended, 42 U.S.C. 4022,                          community suspension(s) included in
                                                        prohibits the sale of NFIP flood                           this rule is a non-discretionary action
     DEPARTMENT OF HOMELAND                             insurance unless an appropriate public                     and therefore the National
     SECURITY                                           body adopts adequate floodplain                            Environmental Policy Act of 1969 (42
                                                        management measures with effective                         U.S.C. 4321 et seq.) does not apply.
     Federal Emergency Management                       enforcement measures. The                                     Regulatory Flexibility Act. The
     Agency                                             communities listed in this document no                     Administrator has determined that this
                                                        longer meet that statutory requirement                     rule is exempt from the requirements of
     44 CFR Part 64                                     for compliance with program                                the Regulatory Flexibility Act because
                                                        regulations, 44 CFR part 59.                               the National Flood Insurance Act of
     [Docket ID FEMA–2018–0002; Internal
     Agency Docket No. FEMA–8557]                       Accordingly, the communities will be                       1968, as amended, Section 1315, 42
                                                        suspended on the effective date in the                     U.S.C. 4022, prohibits flood insurance
     Suspension of Community Eligibility                third column. As of that date, flood                       coverage unless an appropriate public
                                                        insurance will no longer be available in                   body adopts adequate floodplain
     AGENCY: Federal Emergency                                                                                     management measures with effective
     Management Agency, DHS.                            the community. We recognize that some
                                                        of these communities may adopt and                         enforcement measures. The
     ACTION: Final rule.                                submit the required documentation of                       communities listed no longer comply
                                                        legally enforceable floodplain                             with the statutory requirements, and
     SUMMARY: This rule identifies                                                                                 after the effective date, flood insurance
     communities where the sale of flood                management measures after this rule is
                                                        published but prior to the actual                          will no longer be available in the
     insurance has been authorized under                                                                           communities unless remedial action
     the National Flood Insurance Program               suspension date. These communities
                                                        will not be suspended and will continue                    takes place.
     (NFIP) that are scheduled for                                                                                    Regulatory Classification. This final
     suspension on the effective dates listed           to be eligible for the sale of NFIP flood
                                                                                                                   rule is not a significant regulatory action
     within this rule because of                        insurance. A notice withdrawing the
                                                                                                                   under the criteria of section 3(f) of
     noncompliance with the floodplain                  suspension of such communities will be
                                                                                                                   Executive Order 12866 of September 30,
     management requirements of the                     published in the Federal Register.
                                                                                                                   1993, Regulatory Planning and Review,
     program. If the Federal Emergency                     In addition, FEMA publishes a Flood
                                                                                                                   58 FR 51735.
     Management Agency (FEMA) receives                  Insurance   Rate Map (FIRM) that                              Executive Order 13132, Federalism.
     documentation that the community has               identifies the Special Flood Hazard                        This rule involves no policies that have
     adopted the required floodplain                    Areas (SFHAs) in these communities.                        federalism implications under Executive
     management measures prior to the                   The date of the FIRM, if one has been                      Order 13132.
     effective suspension date given in this            published, is indicated in the fourth                         Executive Order 12988, Civil Justice
     rule, the suspension will not occur and            column of the table. No direct Federal                     Reform. This rule meets the applicable
     a notice of this will be provided by               financial assistance (except assistance                    standards of Executive Order 12988.
     publication in the Federal Register on a pursuant to the Robert T. Stafford                                      Paperwork Reduction Act. This rule
     subsequent date. Also, information                 Disaster Relief and Emergency                              does not involve any collection of
     identifying the current participation              Assistance Act not in connection with a                    information for purposes of the
     status of a community can be obtained              flood) may be provided for construction                    Paperwork Reduction Act, 44 U.S.C.
     from FEMA’s Community Status Book                  or acquisition of buildings in identified                  3501 et seq.
     (CSB). The CSB is available at https://            SFHAs for communities not
                                                        participating in the NFIP and identified                   List of Subjects in 44 CFR Part 64
     www.fema.gov/national-flood-
     insurance-program-community-status-                for more than a year on FEMA’s initial                       Flood insurance, Floodplains.
     book.                                              FIRM for the community as having                             Accordingly, 44 CFR part 64 is
                                                        flood-prone areas (section 202(a) of the                   amended as follows:
     DATES: The effective date of each                  Flood Disaster Protection Act of 1973,
     community’s scheduled suspension is                42 U.S.C. 4106(a), as amended). This                       PART 64—[AMENDED]
     the third date (‘‘Susp.’’) listed in the           prohibition against certain types of
     third column of the following tables.              Federal assistance becomes effective for                   ■ 1. The authority citation for part 64
     FOR FURTHER INFORMATION CONTACT: If                the communities listed on the date                         continues to read as follows:
     you want to determine whether a                    shown in the last column. The                                Authority: 42 U.S.C. 4001 et seq.;
     particular community was suspended                 Administrator finds that notice and                        Reorganization Plan No. 3 of 1978, 3 CFR,



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Document Created: 2018-12-04 00:43:05
Document Modified: 2018-12-04 00:43:05
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
ActionFinal rule.
DatesThis regulation is effective December 4, 2018. Objections and requests for hearings must be received on or before February 4, 2019 and must be filed in accordance with the instructions provided in 40 CFR part 178 (see also Unit I.C. of the SUPPLEMENTARY INFORMATION).
ContactMichael Goodis, Registration Division (7505P), Office of Pesticide Programs, Environmental Protection Agency, 1200 Pennsylvania Ave. NW, Washington, DC 20460-0001; main telephone
FR Citation83 FR 62489 
CFR AssociatedEnvironmental Protection; Administrative Practice and Procedure; Agricultural Commodities; Pesticides and Pests and Reporting and Recordkeeping Requirements

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