[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: 46CFR45.51] [Page 76] TITLE 46--SHIPPING CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 45_GREAT LAKES LOAD LINES--Table of Contents Subpart C_Freeboards Sec. 45.51 Types of ships. (a) For the purpose of this subpart, a type A vessel has-- (1) No cargo ports or similar sideshell openings below the freeboard deck; (2) Only small freeboard deck openings fitted with watertight gasketed hatch covers of steel; (3) No dimension of a freeboard deck cargo opening greater than 6 feet and the total area not exceeding 18 ft\2\; and (4) No more than two freeboard deck cargo openings to a single cargo space. (b) For the purposes of this subpart a type B vessel is a vessel that does not meet the requirements in paragraph (a) of this section.