The Environmental Protection Agency (EPA) is taking final action to approve a State Implementation Plan (SIP) revision submitted by the State of Missouri on November 10, 2020. This final action will amend the SIP to revise a Missouri regulation which restricts volatile organic compound emissions from lithographic and letterpress printing operations in the St. Louis Metropolitan Area.

The Environmental Protection Agency (EPA) is finalizing the limited approval and limited disapproval of a revision to the Yolo- Solano Air Quality Management District (YSAQMD) portion of the California State Implementation Plan (SIP). This revision concerns emissions of volatile organic compounds (VOCs) from solvent cleaning and degreasing operations. Under the authority of the Clean Air Act (CAA or the Act), this action simultaneously approves a local rule that regulates these emission sources and directs California to correct rule deficiencies.

The Environmental Protection Agency (EPA) is proposing to approve a State Implementation Plan (SIP) revision submitted by the State of Maine. This revision amends the definition of ``Ozone Transport Region'' in the State's Chapter 100 Definitions Regulation and revises language in the State's Chapter 113 Growth Offset Regulation regarding applicability of Nonattainment New Source Review in areas that, at a future date, may not be within the Ozone Transport Region. This action is being taken under the Clean Air Act (CAA).

The Environmental Protection Agency (EPA) is taking final action to approve a revision to the Mojave Desert Air Quality Management District (MDAQMD or ``District'') portion of the State Implementation Plan (SIP). This revision concerns emissions of volatile organic compounds (VOCs) from wood products coating operations. We are approving a local rule that regulates these emission sources under the Clean Air Act (CAA or the Act).