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Air Quality Regulations

photo of blue sky with clouds

In 1970, Congress passed the Clean Air Act (CAA) to give the United States Environmental Protection Agency (EPA) the authority to clean the air. Major revisions to the Clean Air Act occurred in 1990, and are referred to as the Clean Air Act Amendments (CAAA).

The EPA works with states and the District to implement the CAA and CAAA by developing regulations and programs. The District's regulations are at least as stringent, and sometimes more stringent, than requirements imposed by the EPA. 

The following are enacted under the District's Air Pollution Control Act of 1984 (effective March 15, 1985) and Amendments, and can be found in Title 20 of the District of Columbia Municipal Regulations (DCMR) as outlined below:

A record of the history of changes to the District's air quality laws and regulations since they were established in 1984, as approved by EPA in the District’s State Implementation Plan (SIP), can found in Title 40, Subpart J of the Code of Federal Regulations (CFR).

Reference Documents and Notes

Chapter 7: VOC Regulations Technical Support Document  – includes a history of rulemaking preambles, comments, and response to comment documents.

Chapter 10: Please note that §§ 1000 through 1014 are no longer in effect.
(Sections 1000 to 1013 incorporated requirements of the OTC’s NOx Budget Program model rule through 2003.  Section 1014 incorporated the requirements of EPA’s NOx SIP Call, which replaced the NOx Budget Program, through 2008.  EPA no longer administers the NOx SIP Call trading program.)


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