CFR > Title 46 - Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER G—DOCUMENTATION AND MEASUREMENT OF VESSELS (parts 66 to 69) > PART 69—MEASUREMENT OF VESSELS > SUBPART D—Dual Measurement System (§69.151 to §69.183) > 69.161—Gross and net tonnages.

69.161—Gross and net tonnages.

(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.