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.

would require the Administrator of EPA to revise certain ethylene oxide emissions standards under the CAA.

would require the Administrator of EPA to revise certain ethylene oxide emissions standards under the CAA.

would preserve appropriate and achievable federal standards for greenhouse gas emissions and corporate average fuel economy for cars and light trucks through model year 2025.

would prevent catastrophic failure or shutdown of remote diesel power engines due to emission control devices.