By Philip L. Comella and Craig B. Simonsen
The U.S. Environmental Protection Agency has promulgated significant new provisions both to its 1988 underground storage tank (UST) regulations and to its 1988 state program approval (SPA) regulations. 80 Fed. Reg. 41566 (July 15, 2015). This is the first major revision to the federal UST regulations since 1988.