EPA has asked the White House Office of Management and Budget (OMB) to approve its plan to request detailed information from all 152 U.S. petroleum refiners about emissions of hazardous air pollutants (HAPs) to determine the need for additional emissions controls. 75 Fed. Reg. 60,107 (9/29/10). The request is part of an EPA evaluation to determine whether the existing national emissions standards for hazardous air pollutants (NESHAPs) and new source performance standards (NSPS) for petroleum refineries are adequate to protect public health.  

EPA made a determination in 2009 that U.S. refineries did not pose additional health risks and no new controls were required, but the agency withdrew those findings in October 2009. 74 Fed. Reg. 55,670 (10/28/09). The Clean Air Act requires EPA to review every eight years NESHAPs for various industrial categories and NSPS for industrial facilities. The agency must either promulgate additional standards to protect public health against any residual risk or make an official finding that no further controls are necessary. EPA requests comments by November 29, 2010.