The DEP Division of Storage Tanks published revisions to storage tank regulations (25 Pa. Code, Chapter 245) on December 22, 2018. Here you’ll find a summary of the changes, new and updated forms, and helpful information about the revisions to assist in maintaining regulatory compliance. If you have any questions, please contact the DEP Division of Storage Tanks at 1-800-42-TANKS (toll-free in PA) or 717-772-5599 (local and out-of-state) or by email at