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National Emission Standards: Coal- and Oil-Fired Electric Utility Steam Generating Units: Final Repeal; Correction

The EPA issued a correction to a February 2026 final rule that repealed National Emission Standards for Hazardous Air Pollutants (NESHAP) for coal- and oil-fired electric utility steam generating units. The correction is effective April 27, 2026. Operators of affected generating units should monitor for updates to emission standards under 40 CFR 63.

Air Plan Approval; California; Eastern Kern APCD; Portland Cement Kilns NOx

EPA Region 9 approved a revision to California's State Implementation Plan submitted by the Eastern Kern Air Pollution Control District. The revision establishes emission limitations and compliance schedules for nitrogen oxides from Portland cement kilns. The rule is effective May 18, 2026.

Pennsylvania Allegheny County Redesignation for 2012 Annual PM2.5 Standard

EPA approved Pennsylvania's request to redesignate the Allegheny County area for the 2012 Annual Fine Particulate Matter (PM2.5) National Ambient Air Quality Standard. The final rule is effective May 18, 2026. This action affects air quality management designations in the Pittsburgh metropolitan area under the Clean Air Act.

Arizona Interstate Transport SIP Approval for 2012 Fine Particulate Matter Standards

EPA Region 9 approved Arizona's State Implementation Plan revision addressing interstate transport requirements for the 2012 Fine Particulate Matter National Ambient Air Quality Standards. The rule approves Arizona's demonstration that emissions from the state do not significantly contribute to PM2.5 nonattainment in other states. The action is effective May 18, 2026.

Redacted Final Remedial Action Report, EPA Region 1

EPA Region 1 filed a redacted Final Remedial Action Report under the Superfund program (Comprehensive Environmental Response, Compensation, and Liability Act). The document records remedial action activities at a contaminated site in New England. Specific site details and remediation findings are not available due to redaction.

EPA Region 1 Superfund Record of Decision

EPA Region 1 issued a Record of Decision (ROD) for a Superfund site on April 15, 2025, selecting the remedial action alternative to address contamination at the site. The ROD documents EPA's decision on the cleanup approach, which becomes a legally enforceable requirement under CERCLA. Potentially responsible parties and affected property owners should review the document for compliance obligations.

Northern Gulf of Maine Scallop Area Closure Effective April 13, 2026

NMFS announces the closure of the Northern Gulf of Maine (NGOM) Scallop Management Area effective 0001 local time April 13, 2026, through March 31, 2027. The closure applies to all federally permitted Limited Access General Category (LAGC) scallop vessels upon projection that 100 percent of the 2026 NGOM Set-Aside will be harvested. Vessels may continue fishing in Maine or Massachusetts state waters under approved exemption programs.

NESDIS Establishes Revised Fee Schedule for Special Environmental Data Access

NOAA's National Environmental Satellite, Data, and Information Service (NESDIS) has issued a final rule updating its fee schedule for special access to environmental data, information, and related products and services. The new fees take effect May 14, 2026, and replace the schedule in place since 2023. NOAA continues to provide the vast majority of environmental data free of charge through its National Centers for Environmental Information Archive, CLASS system, and NOAA Open Data Dissemination Program, but special data products accessed offline, online, or through the NESDIS e-Commerce System will now reflect updated costs.

Canton Ohio Lead NAAQS Redesignation Maintenance Plan

EPA Region 5 has approved the redesignation of the Canton, Ohio area to attainment status for the National Ambient Air Quality Standards (NAAQS) for lead, establishing a maintenance plan to ensure continued compliance. The plan projects air quality maintenance for a 10-year period following redesignation.

Reduced Air Pollution Transportation Sector EPA

The EPA has finalized a rule establishing new emission standards for the transportation sector aimed at reducing air pollution. The rule sets specific limits on pollutants from vehicles and transportation-related sources. Affected entities include automobile manufacturers, transportation companies, and fleet operators who must meet the new emission requirements within the compliance timeframe.