would amend the CAA to allow the Administrator of EPA, in identifying the best system of emission reduction for purposes of a standard of performance, to include measures that apply beyond an individual stationary source or category of stationary sources.

would amend the CAA to provide for the establishment of standards to limit the carbon intensity of the fuel used by certain vessels.

would amend the CAA to eliminate the corn ethanol mandate for renewable fuel.

would direct the Administrator of EPA to issue a final rule adding as a class all perfluoroalkyl and polyfluoroalkyl substances with at least one fully fluorinated carbon atom to the list of hazardous air pollutants under §112(b) of the CAA.

would amend the CAA to prohibit the emission of any greenhouse gas in any quantity from any new electric utility steam generating unit.

would direct the Administrator of EPA to ensure the completion of a marginal well study by the Secretary of Energy so as to inform the development of certain rules under the CAA.

would exclude vehicles to be used solely for competition from certain provisions of the CAA.

would amend the CAA to establish a grant program for supporting local communities in detecting, preparing for, communicating about, or mitigating the environmental and public health impacts of wildfire smoke.