The Environmental Protection Agency (EPA) is proposing a limited approval and limited disapproval of two revised rules and an approval of a rule recission to the South Coast Air Quality Management District (SCAQMD) portion of the California State Implementation Plan (SIP). These revisions concern emissions of volatile organic compounds (VOCs) from marine and pleasure craft coating operations and the coating of metals. The EPA previously proposed to fully approve these SIP revisions on the grounds that they satisfied the relevant requirements under the Clean Air Act (CAA or the Act).

The Environmental Protection Agency (EPA) is taking final action to approve a revision to the Missouri State Implementation Plan (SIP). This final action will rescind the Missouri General Conformity Rule from the Missouri SIP. General Conformity ensures federal agency actions, such as airport construction, do not interfere with a state's plans to attain and maintain national standards for air quality. After rescission of the state's General Conformity Rule, federal agency actions will be subject to the Federal General Conformity Rule.

The Environmental Protection Agency (EPA) is taking final action to approve revisions to the Missouri State Implementation Plan (SIP) received on June 10, 2021. The submission revises Missouri's regulation on construction permit exemptions. These revisions update incorporations by reference, remove unnecessary words, and make minor clarifications and grammatical changes. These revisions do not impact the stringency of the SIP or have an adverse effect on air quality. The EPA's approval of this rule revision is being done in accordance with the requirements of the Clean Air Act (CAA).

The Environmental Protection Agency (EPA) is approving State Implementation Plan (SIP) revisions of New Hampshire Code of Administrative Rules Chapter Env-A 1000 submitted by the State of New Hampshire on January 8, 2020. Env-A 1000 establishes requirements for open burning, fugitive dust, and firefighter instruction and training activities. This action is being taken under the Clean Air Act.