SUPPLEMENTARY INFORMATION:

This is a proposed extension of the ICR, which is currently approved through July 31, 2026. An agency may not conduct or sponsor and a person is not required to respond to a collection of information unless it displays a currently valid OMB control number.

Public comments were previously requested via the Federal Register on August 6, 2024 during a 60-day comment period (89 FR 63933). This notice allows for an additional 30 days for public comments. Supporting documents, which explain in detail the information that the EPA will be collecting, are available in the public docket for this ICR. The docket can be viewed online at www.regulations.gov or in person at the EPA Docket Center, WJC West, Room 3334, 1301 Constitution Ave. NW, Washington, DC. The telephone number for the Docket Center is 202-566-1744. For additional information about EPA's public docket, visit https://www.epa.gov/​dockets.

Abstract: The New Source Performance Standards (NSPS) for Greenhouse Gas (GHG) Emissions for New Electric Utility Generating Units (EGUs) (40 CFR part 60, subpart TTTT) were proposed on June 2, 2014, and promulgated on October 23, 2015. Amendments to 40 CFR part 60, subpart TTTT were proposed on December 6, 2018, but EPA did not finalize amendments to the 2015 final rule. On January 13, 2021, EPA finalized a pollutant-specific significant contribution finding for this source category, which was vacated and remanded on April 5, 2021. The rule was most recently amended on May 4, 2024. These regulations apply to newly constructed, modified or reconstructed facilities with electric utility generating units (EGUs) including any steam generating unit, IGCC, or stationary combustion turbine that either commenced construction or modification after January 8, 2014 or commenced reconstruction after June 18, 2014, but on or before May 23, 2023. To be considered an EGU, the unit must be: (1) capable of combusting more than 250 MMBtu/h heat input of fossil fuel; and (2) serve a generator capable of supplying more than 25 MW net to a utility distribution system ( i.e., for sale to the grid). This information is being collected to assure compliance with 40 CFR part 60, subpart TTTT. Units that commence construction, reconstruction, or modification after May 23, 2023 will be subject to 40 CFR part 60, subpart TTTTa.

In general, all NSPS standards require initial notifications, performance tests, and periodic reports by the owners/operators of the affected facilities. They are also required to maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an affected facility, or any period during which the monitoring system is inoperative. These notifications, reports, and records are essential in determining compliance, and are required of all affected facilities subject to NSPS.

Form Numbers: None.

Respondents/affected entities: Fossil fuel-fired electric utility steam generating units.

Respondent's obligation to respond: Mandatory (40 CFR part 60, subpart TTTT).

Estimated number of respondents: 56 (total).

Frequency of response: Initially, quarterly.

Total estimated burden: 1,550 hours (per year). Burden is defined at 5 CFR 1320.03(b).

Total estimated cost: $212,000 (per year). There are no annualized capital or operation & maintenance costs.

Changes in the Estimates: There is an adjustment decrease in the total estimated burden as currently identified in the OMB Inventory of Approved Burdens. The adjustment decrease is due in part to a decrease in the number of existing respondents based on EPA's ECHO database. Additionally, sources that commence construction, modification, or reconstruction after May 23, 2023 will be subject to 40 CFR part 60, subpart TTTTa. Therefore, we do not expect any new sources will become subject to 40 CFR part 60, subpart TTTT during the next three years. The labor cost also decreased based on the decrease in the number of respondents.

91 FR 46431