[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: 46CFR52.05-15] [Page 133] TITLE 46--SHIPPING CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 52_POWER BOILERS--Table of Contents Subpart 52.05_Requirements for Boilers Fabricated by Welding Sec. 52.05-15 Heat treatment (modifies PW-10). (a) Vessels and vessel parts shall be preheated and postweld heat treated in accordance with PW-38 and PW-39 of the ASME Code (reproduces PW-10). This includes boiler parts made of pipe material even though they may be nondestructively examined under Sec. 52.05-20.