EPA Finalizes Revisions to Arizona Department of Environmental Quality's Air Plan

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Energy & environment · 5/29/2026

EPA Approves Revisions to California Air Pollution Control Districts

The Environmental Protection Agency (EPA) has taken final action to approve revisions to the San Joaquin Valley Unified Air Pollution Control District, Ventura County Air Pollution Control District, and South Coast Air Quality Management District portions of the California State Implementation Plan, regulating emissions of volatile organic compounds from crude oil and natural gas production facilities.

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Energy & environment · 5/29/2026

Partial Approval and Partial Disapproval of Air Quality Implementation Plans; Hawaii; Regional Haze State Implementation Plan for the Second Implementation Period

The Environmental Protection Agency (EPA) partially approved and disapproved Hawaii's regional haze state implementation plan revision, submitted on August 2, 2024, addressing visibility impairment in Class I Federal areas.

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Energy & environment · 5/29/2026

Approval of Source-Specific Air Quality Implementation Plan; New York; Calpine JFK Energy Center

The Environmental Protection Agency (EPA) is approving a revision to the State of New York's State Implementation Plan for the Calpine JFK Energy Center, implementing Reasonably Available Control Technology (RACT) for Oxides of Nitrogen (NOx) emissions from six mid-size emergency hot water boilers.

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Energy & environment · 5/28/2026

Air Plan Approval; SC; Department Name Change

The Environmental Protection Agency (EPA) is proposing to approve a State Implementation Plan (SIP) revision submitted by the State of South Carolina on July 23, 2025, to update department references following a restructuring of the South Carolina Department of Health and Environmental Control.

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Energy & environment · 5/28/2026

Approval of Source-Specific Air Quality Implementation Plan; New York; Big Six Towers Inc.

The Environmental Protection Agency (EPA) is proposing to approve a revision to the State of New York's State Implementation Plan (SIP) for Big Six Towers Inc. to implement Reasonably Available Control Technology (RACT) for nitrogen oxide emissions from three oil-fired engines at the facility.

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Energy & environment · 5/29/2026

EPA Updates Materials Incorporated by Reference in Idaho State Implementation Plan

The Environmental Protection Agency (EPA) is updating the materials incorporated by reference in the Idaho State Implementation Plan, correcting a typographical error in the process.

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