46 CFR §119.405
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The use of a fuel, other than diesel fuel, as an alternative fuel for an internal combustion engine, except gasoline when used as a fuel for outboard motors as allowed by § 119.458 of this part, will be reviewed on a case-by-case basis by the Commandant.