The Environmental Protection Agency (EPA) is finalizing approval of a State Implementation Plan (SIP) revision submitted by the State of Georgia, through the Georgia Environmental Protection Division (GA EPD) on September 1, 2020. Specifically, EPA is finalizing approval of updates to the incorporation by reference of federal prevention of significant deterioration (PSD) new source review (NSR) regulations in the Georgia SIP.

The Environmental Protection Agency (EPA) is proposing approval of a State Implementation Plan (SIP) revision submitted by the State of Missouri on January 15, 2019 and supplemented by letter on July 11, 2019. Missouri requests that the EPA remove from its SIP a rule related to control of emissions from bakery ovens in St. Louis City and Jefferson, St. Charles, Franklin, and St. Louis Counties. The EPA's proposed approval of this rule revision is in accordance with the requirements of the Clean Air Act (CAA).

Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is approving the CAA section 111(d)/129 state plan submitted by the State of Texas for sources subject to the Other Solid Waste Incineration Units (OSWI) Emission Guidelines (EG). The Texas OSWI plan was submitted to fulfill State obligations under CAA section 111(d)/129 to implement and enforce the requirements under the OSWI EG. The EPA is approving the state plan in part and amending the agency regulations in accordance with the requirements of the CAA.

Pursuant to the EPA's Significant New Alternatives Policy program, this action lists the refrigerant 2,3,3,3-tetrafluoroprop-1- ene, also known as HFO-1234yf or R-1234yf, as acceptable, subject to use conditions, in the motor vehicle air conditioning end-use for certain types of newly manufactured nonroad (also called off-road) vehicles, which includes some vehicles that are also considered heavy- duty vehicles.