CFR › Title 33 › Part 168 › §168.2033 CFR §168.20Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkThe requirements of this part apply to the following laden tankers of 5,000 gross tons or more:(a)All single hull tankers on the waters listed in § 168.40(a) and (b); and(b)All double hull tankers on the waters listed in § 168.40(a).