[Code of Federal Regulations] [Title 46, Volume 7] [Revised as of October 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 46CFR177.970] [Page 234] TITLE 46--SHIPPING CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 177_CONSTRUCTION AND ARRANGEMENT--Table of Contents Subpart I_Rails and Guards Sec. 177.970 Protection against hot piping. Piping, including valves, pipe fittings and flanges, conveying vapor, gas, or liquid, the temperature of which exceeds 65.5[deg] C (150[deg] F), must be suitably insulated where necessary to prevent injuries.