An official website of the United States government Here $ howYOu know United EPA Environmental Protection Search EPA gov Agency Environmental Topics: Laws & Regulationse Report a Violation About EPA CONTACT US U.S. Environmental Protection Agency Iah 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 zero-emissions transportation future: Read the news release_ States ashungtepSt