Approval and Promulgation of Implementation Plans; Illinois

On May 23, 1995, and June 7, 1995, the Illinois Environmental Protection Agency (IEPA) submitted an adopted rule and supporting information for the control of batch processes as a requested State Implementation Plan (SIP) revision. This rule is part of the State's control measures for volatile organic compound (VOC) emissions, for the Chicago and East St. Louis ozone nonattainment areas, and is intended to satisfy part of the requirements of section 182(b)(2) of the Clean Air Act (Act), as amended in 1990. VOCs are air pollutants which combine on hot summer days to form ground-level ozone, commonly known as smog. Ozone pollution is of particular concern because of its harmful effects upon lung tissue and breathing passages. This regulation requires a reasonably available control technology (RACT) level of control for batch processes, as required by the amended Act. In this document, USEPA is approving Illinois' rule. The rationale for the approval is set forth in this final rule; additional information is available at the address indicated below. Elsewhere in this Federal Register USEPA is proposing approval and soliciting public comment on this requested revision to the SIP. If adverse comments are received on this direct final rule, USEPA will withdraw the final rule and address the comments received in a new final rule. Unless this final rule is withdrawn, no further rulemaking will occur on this requested SIP revision.