[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: 46CFR69.67] [Page 394-395] TITLE 46--SHIPPING CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 69_MEASUREMENT OF VESSELS--Table of Contents Subpart B_Convention Measurement System Sec. 69.67 Marking of cargo spaces. Cargo spaces used in determining volume (Vc) for calculating net tonnage must be permanently marked with the letters ``CC'' (cargo compartment) [[Page 395]] which are at least four inches in height and positioned so as to be visible at all times.