EPA Approves Air Quality Implementation Plan Revisions for District of Columbia

Summary

The Environmental Protection Agency (EPA) has proposed to approve revisions to the District of Columbia's State Implementation Plan (SIP), which reduce size thresholds for major sources and increase new source review offset ratios for ozone precursors to meet Clean Air Act requirements for severe ozone nonattainment areas.

Original source language: Federal Register — Environmental Protection AgencyOpen original release →

Add your company to Business Communicator

We monitor business sources and connect attention with companies, profiles and services available in Business Communicator.

Create a free company profile Explore businesses on Business Maps →

Create a free company profile →

Explore insights

Business insights →

Global Markets News Trade Regulation News Business Technology News Fintech for Business: Payments & Banking News Supply Chain News Central Bank Policy News

Related business signals

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.

Read summary →

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.

Read summary →

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.

Read summary →

Energy & environment · 5/29/2026

EPA Approves Negative Declarations for District of Columbia Air Quality Plans

The Environmental Protection Agency (EPA) has approved negative declarations submitted by the District of Columbia Department of Energy and Environment (DCDOEE) on July 19, 2024, and August 28, 2024, certifying no large municipal waste combustors, crude oil and natural gas facilities, or electric utility generating units subject to the Clean Air Act within the District of Columbia.

Read summary →

Energy & environment · 5/29/2026

Air Plan Approval; Virginia; Repeal of Existing Stationary Source Regulations

The Environmental Protection Agency (EPA) is approving a state implementation plan revision submitted by the Commonwealth of Virginia, removing two existing regulations due to lack of applicable sources.

Read summary →

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.

Read summary →