WASHINGTON, D.C. — In the aftermath of Hurricane Katrina, on Sept. 13 the U.S. Environ-mental Protection Agency (EPA) provided flexibility to fuel production and distribution in the Gulf Coast and nationwide by issuing waivers for diesel fuel sulfur requirements and summer gasoline volatility controls, according to the National Association of Fleet Administrators. Because of a continuing tight market for highway diesel fuel in some parts of the country, the EPA exercised its authority under the Clean Air Act to issue a second, temporary waiver of highway die-sel fuel sulfur requirements through Oct. 5, 2005, for states that continue to be affected by disrup-tions to the fuel production and distribution system caused by Hurricane Katrina. This action will allow diesel fuel normally used in off-road equipment to be used in highway vehicles in those im-pacted states. In addition, the EPA waived the federal enforceability of the summer grade gasoline required under state law in California, Eastern Texas, and Phoenix.