[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: 46CFR173.075] [Page 167] TITLE 46--SHIPPING CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 173_SPECIAL RULES PERTAINING TO VESSEL USE--Table of Contents Subpart D_Oceanographic Research Sec. 173.075 Subdivision requirements. (a) Each oceanographic vessel must comply with the subdivision requirements in Sec. Sec. 171.070, 171.072, and 171.073 of this subchapter as if it were a passenger vessel carrying 400 or less passengers. (b) Each vessel must have a collision bulkhead.