[Code of Federal Regulations] [Title 46, Volume 4] [Revised as of October 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 46CFR109.521] [Page 174] TITLE 46_SHIPPING (This book contains parts 90 to 139) CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 109_OPERATIONS--Table of Contents Subpart F_Cranes Sec. 109.521 Cranes: General. The master or person in charge shall ensure that each crane is operated and maintained in accordance with the API Recommended Practice for Operation and Maintenance of Offshore Cranes, API RP 2D, First Edition (Oct. 1972) with supplement 1.