[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: 46CFR69.107] [Page 399] TITLE 46--SHIPPING CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 69_MEASUREMENT OF VESSELS--Table of Contents Subpart C_Standard Measurement System Sec. 69.107 Gross and net tonnages. (a) Gross tonnage is the sum of the following tonnages, less certain spaces exempt under Sec. 69.117: (1) Under-deck tonnage (Sec. 69.109). (2) Between-deck tonnage (Sec. 69.111). (3) Superstructure tonnage (Sec. 69.113). (4) Excess hatchway tonnage (Sec. 69.115(c)). (5) Tonnage of framed-in propelling machinery spaces included in calculating gross tonnage (Sec. 69.121(d)(1)). (b) Net tonnage is gross tonnage less deductions under Sec. Sec. 69.119 and 69.121.