46 C.F.R. § 69.57 Gross tonnage.
Title 46 - Shipping
Gross tonnage (GT) is determined by the following formula GT=K1 V, in which V=total volume of all enclosed spaces in cubic meters and K1=0.2+0.02 log10 V.
Title 46: Shipping
PART 69—MEASUREMENT OF VESSELS
Subpart B—Convention Measurement System
§ 69.57 Gross tonnage.
