[Code of Federal Regulations] [Title 33, Volume 2] [Revised as of July 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 33CFR149.303] [Page 205] TITLE 33--NAVIGATION AND NAVIGABLE WATERS CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 149--DESIGN, CONSTRUCTION, AND EQUIPMENT--Table of Contents Subpart C--Pollution Prevention Equipment Sec. 149.303 Overflow and relief valve. (a) Each oil transfer system must include a relief valve, that, when activated, prevents pressure on any components of the OTS from exceeding maximum rated pressure. (b) No oil transfer system overflow or relief valve may be installed so as to allow an oil discharge into the sea.