Control of Emissions of Air Pollution From Highway Heavy-Duty Engines

OGC-98-9: Published: Oct 29, 1997. Publicly Released: Oct 29, 1997.


Additional Materials:


Office of Public Affairs
(202) 512-4800

Pursuant to a legislative requirement, GAO reviewed the Environmental Protection Agency's new rule on the control of emissions of air pollution from highway heavy-duty engines. GAO noted that: (1) the rule establishes a new emission standard and related provisions for diesel heavy-duty engines intended for highway operation, beginning with the 2004 model year; and (2) EPA complied with the applicable requirements in promulgating the rule.

Oct 17, 2016

Oct 14, 2016

Oct 3, 2016

Sep 28, 2016

Aug 15, 2016

Jul 26, 2016

Jul 21, 2016

Jul 14, 2016

Looking for more? Browse all our products here