On June 10, 1997, the Environmental Protection Agency (EPA) proposed to approve a petition submitted by the Governor of the U.S. Virgin Islands which requested a waiver from certain Clean Air Act (the Act) restrictions to the Hess Oil Virgin Islands Corporation (HOVIC) in St. Croix. This exemption was proposed pursuant to section 325(a)(1) of the Act. Specifically, the waiver would allow HOVIC to implement an Intermittent Control Strategy (ICS) based on atmospheric conditions, which is prohibited by section 123 of the Clean Air Act. The ICS would alleviate potential exceedances of the National Ambient Air Quality Standards for sulfur dioxide. In this action, EPA is promulgating this waiver which allows the HOVIC refinery in St. Croix to implement an ICS under conditions which will be specified in a federally enforceable Prevention of Significant Deterioration of Air Quality (PSD) permit.