would authorize the Administrator of EPA to conduct research on wildfire smoke.

which would prevent catastrophic failure or shutdown of remote diesel power engines due to emission control devices, was signed by President Trump on October 4, 2019.

would direct the Administrator of EPA to enter an agreement with the National Academies of Sciences, Engineering, and Medicine to conduct a study on the science of background ozone in the United States and provide research recommendations to better understand background ozone contributions to ground-level ozone. 

would establish the Clean School Bus Grant Program.

would establish the Clean School Bus Grant Program.

would reauthorize the Clean School Bus Program.

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

which would prevent catastrophic failure or shutdown of remote diesel power engines due to emission control devices, was passed by the House.

which would prevent catastrophic failure or shutdown of remote diesel power engines due to emission control devices, was passed by the Senate.

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