E.P.A. Targets Buses, Delivery Vans, Tractor-Trailers, To Tighten Pollution Standards
WASHINGTON — The Biden administration on Monday proposed strict new limits on pollution from buses, delivery vans, tractor-trailers and other heavy trucks — the first time in more than 20 years that tailpipe standards have been tightened for the biggest polluters on the road. The new draft rule from the Environmental Protection Agency would require


