[Code of Federal Regulations] [Title 46, Volume 1] [Revised as of January 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 46CFR4.03-70] [Page 44] TITLE 46--SHIPPING CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY PART 4_MARINE CASUALTIES AND INVESTIGATIONS--Table of Contents Subpart 4.03_Definitions Sec. 4.03-70 Tank vessel. Tank vessel means a vessel that is constructed or adapted to carry, or that carries, oil, hazardous substances, marine pollutants, or noxious liquid substances, in bulk as cargo or cargo residue. [USCG-2000-6927, 70 FR 74676, Dec. 16, 2005]