[Code of Federal Regulations] [Title 46, Volume 2] [Revised as of October 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 46CFR64.91] [Page 323-324] TITLE 46--SHIPPING CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 64_MARINE PORTABLE TANKS AND CARGO HANDLING SYSTEMS--Table of Contents Subpart F_Cargo Handling System Sec. 64.91 Relief valve for the cargo pump discharge. The cargo pump discharge must have a relief valve that is-- (a) Fitted between the cargo pump discharge and the shut-off valve, with the relief valve discharge piped back to the cargo pump suction or returned to the tank; and [[Page 324]] (b) Set at the maximum design pressure of the piping and discharge hose, or less.