would amend the CAA to create a national zero emission vehicle standard.

would direct the Administrator of EPA to issue a final rule adding as a class all per- 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 reauthorize the diesel emissions reduction program.

would direct the Administrator of EPA to set a health-protective numerical emission limitation for hydrogen cyanide under §112 of the CAA.

would reauthorize the diesel emissions reduction program.

would repeal §115 of the CAA.

would amend the CAA to give states the option of monitoring covered criteria air pollutants in designated areas by greatly increasing the number of air quality sensors in exchange for greater regulatory flexibility in the methods of monitoring.

would repeal EPA's most recent rule for new residential wood heaters.