46 CFR §69.57
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Gross tonnage ITC (GT ITC) is determined by the following formula GT ITC = K1 V, in which V = total volume of all enclosed spaces in cubic meters and K1 = 0.2 + 0.02 log10 V.