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 establish a compliance deadline of May 15, 2023, for Step Two emissions standards for new residential wood heaters, hydronic heaters, and forced-air furnaces. 

would amend part A of title II of the CAA to exclude trailers and other vehicles that rely on a connection to a self-propelled vehicle from the definition of a motor vehicle.

would amend the Internal Revenue Code to provide for carbon dioxide and other greenhouse gas emission fees, reduce the rate of the corporate income tax, provide tax credits to workers, and deliver additional benefits to retired and disabled Americans.