46 C.F.R. § 69.161 Gross and net tonnages.
Title 46 - Shipping
(a) Gross tonnage means the tonnage of a vessel, less certain spaces exempt under §69.169, and is the sum of the following: (1) Under-deck tonnage (§69.163). (2) Between-deck tonnage (§69.165) (3) Superstructure tonnage (§69.167) (4) Excess hatchway tonnage (§69.115) (5) Tonnage of framed-in propelling machinery spaces included in calculating gross tonnage (§69.121(d)(1)). (b) Net tonnage means gross tonnage less deductions under §69.119 and §69.121.
Title 46: Shipping
PART 69—MEASUREMENT OF VESSELS
Subpart D—Dual Measurement System
§ 69.161 Gross and net tonnages.
