{"abstract":"The U.S. Environmental Protection Agency (EPA) is proposing an action related to the National Emission Standards for Hazardous Air Pollutants (NESHAP) from Crude Oil and Natural Gas Production Facilities and from Natural Gas Transmission and Storage Facilities (Oil and Gas NESHAP) in connection with a technology review pursuant to Clean Air Act (CAA) section 112. Based on the EPA's review the Agency is not proposing any revision to the current standards in the NESHAP. With respect to unregulated pollutants, the EPA is proposing standards for methanol from regulated emission points at crude oil and natural gas production facilities that will result in no additional control requirements. The EPA is further proposing two alternative approaches to emission points not currently regulated in these NESHAP. Under the first approach, we are proposing that the Agency does not have an obligation to regulate previously unregulated emission points when conducting a CAA section 112(d)(6) review and to defer action on that basis. Under the second approach, we are proposing new control standards for previously unregulated emission points, which include: acid gas removal units, transport vessel loading operations, and storage vessels without flash emissions at crude oil and natural gas production facilities, as well as storage vessels, transport vessel loading and natural gas-driven process controllers and pumps at natural gas transmission and storage facilities. The EPA is also concurrently proposing changes to the definition of \"associated equipment\" with respect to a major source to align with the CAA that, if finalized, would reduce burdens on industry. Finally, the EPA is proposing minor technical corrections to the existing regulations.","action":"Proposed rule.","agencies":[{"raw_name":"ENVIRONMENTAL PROTECTION AGENCY","name":"Environmental Protection Agency","id":145,"url":"https://www.federalregister.gov/agencies/environmental-protection-agency","json_url":"https://www.federalregister.gov/api/v1/agencies/145","parent_id":null,"slug":"environmental-protection-agency"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2026/04/22/2026-07800.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"63","title":40}],"citation":"91 FR 21672","comment_url":"http://www.regulations.gov/commenton/EPA-HQ-OAR-2025-1348-0001","comments_close_on":"2026-06-22","correction_of":null,"corrections":[],"dates":"Comments must be received on or before June 22, 2026. Under the Paperwork Reduction Act (PRA), comments on the information collection provisions are best assured of consideration if the Office of Management and (OMB) receives a copy of your comments on or before May 22, 2026.","disposition_notes":null,"docket_ids":["EPA-HQ-OAR-2025-1348","FRL-5732-02-OAR"],"dockets":[{"supporting_documents":[{"title":"40 CFR Part 63 Subpart HH Wexpro Company Phase 1 Information Collection Request Facility Responses and Supplemental Information","document_id":"EPA-HQ-OAR-2025-1348-0126"},{"title":"40 CFR Part 63 Subpart HH Targa Pipeline Midcontinent Phase 1 Information Collection Request Facility Responses and Supplemental Information","document_id":"EPA-HQ-OAR-2025-1348-0120"},{"title":"Earthjustice Petition. Re: Petition for Reconsideration of Oil and Natural Gas Sector: National Emission Standards for Hazardous Air Pollutants Reviews; Final Rule, 77 Fed. Reg. 49,490 (Aug. 16, 2012), 40 C.F.R. Part 63, Subparts HH and HHH. October 15, 2012.","document_id":"EPA-HQ-OAR-2025-1348-0105"},{"title":"Report. Carbon Limit: Zero emissions technologies for pneumatic controllers in the USA. Applicability and cost effectiveness. August 1, 2016.","document_id":"EPA-HQ-OAR-2025-1348-0103"},{"title":"Report. Research and Development: Methane Emissions from the National Gas Industry. Volume 12: Pneumatic Devices. GRI-94/0257.29. EPA-600/R-96-080I. June 1996.","document_id":"EPA-HQ-OAR-2025-1348-0102"},{"title":"Report. Gasoline Distribution Area Source Control Cost Estimates. October 3, 2006","document_id":"EPA-HQ-OAR-2025-1348-0099"},{"title":"Memorandum. Control Options for Loading Operations at Gasoline Distribution Facilities. October 20, 2021","document_id":"EPA-HQ-OAR-2025-1348-0097"},{"title":"SpiralX EPA Presentation. 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