An official website of the United States government Here s hoWVOuknow United States EPA Environmental Protection Search EPA gov Agency Environmental Topics Laws & Regulations Report a Violation About EPA CONTACT US U.S. Environmental Protection Agency High St Washington St EPA Proposes Stronger Standards for Heavy-Duty Vehicles to Promote Clean Air These new standards will drastically cut dangerous pollution by harnessing recent advancements in vehicle technologies from across the trucking industry as it advances toward a zero-emissions transportation future: Read the news release Learn moreabout theproposedrulefor heavy_dutyvehiclesand engines 1| 2 Key Topics EPA IS Air quality EXIT Emergencies HIRING?