46 C.F.R. § 119.405 Fuel restrictions.
Title 46 - Shipping
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. [CGD 85–080, 61 FR 922, Jan. 10, 1996, as amended by CGD 97–057, 62 FR 51047, Sept. 30, 1997]
Title 46: Shipping
PART 119—MACHINERY INSTALLATION
Subpart D—Specific Machinery Requirements
§ 119.405 Fuel restrictions.