The EPA is revising the outer continental shelf (OCS) regulations in response to a decision by the U.S. Court of Appeals for the District of Columbia Circuit. The OCS regulations establish air pollution control requirements for certain sources located on the OCS. On September 4, 1992, EPA promulgated the OCS regulations, which, in part, set up special offset requirements for OCS sources located within 25 miles of the States' seaward boundaries (the 25-mile limit). The Santa Barbara County Air Pollution Control District filed a petition for review of the regulations on several issues, including the special offset provisions. Upon review, the court found that the special offset provisions departed from the Clean Air Act directive, vacated the regulation in part, and remanded it to EPA for further consideration. By this action, EPA is revising the OCS regulations to delete the special offset provisions and to require that for sources located within the 25-mile limit, offset requirements apply as they are required in the corresponding onshore area (COA). The EPA is promulgating these revisions as an interim final regulation and is requesting comments on the revisions. The revisions will be in effect during the interim period while EPA receives, reviews and responds to any comments.