69.107—Gross and net tonnages.

(a) Gross tonnage is the sum of the following tonnages, less certain spaces exempt under § 69.117 :

(1) Under-deck tonnage ( § 69.109 ).

(2) Between-deck tonnage ( § 69.111 ).

(3) Superstructure tonnage ( § 69.113 ).

(4) Excess hatchway tonnage ( § 69.115(c) ).

(5) Tonnage of framed-in propelling machinery spaces included in calculating gross tonnage ( § 69.121(d)(1) ).

(b) Net tonnage is gross tonnage less deductions under §§ 69.119 and 69.121.

CFR