[Code of Federal Regulations] [Title 33, Volume 2] [Revised as of July 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 33CFR183.310] [Page 872] TITLE 33--NAVIGATION AND NAVIGABLE WATERS CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 183_BOATS AND ASSOCIATED EQUIPMENT--Table of Contents Subpart H_Flotation Requirements for Outboard Boats Rated for Engines of 2 Horsepower or Less Sec. 183.310 Reference areas. (a) The forward reference area of a boat is the forwardmost 2 feet of the top surface of the hull or deck as illustrated in Figure 9. (b) The aft reference area of a boat is the aftmost two feet of the top surface of the hull or deck, as illustrated in Figure 9.