128.310—Fuel.
(a)
Except as provided by paragraph (b) of this section, each internal-combustion engine installed on an OSV, whether for main propulsion or for auxiliaries, must be driven by a fuel having a flashpoint of not lower than 43 °C (110 °F) as determined by ASTM D 93 (incorporated by reference, see § 125.180 ).
(b)
The use of a fuel with a flashpoint of lower than 43 °C (110 °F) must be specifically approved by the Commandant (CG-521), except in an engine for a gasoline-powered rescue boat.
[CGD 82-004 and CGD 86-074, 62 FR 49331, Sept. 19, 1997, as amended by USCG-2000-7790, 65 FR 58463, Sept. 29, 2000; USCG-2009-0702, 74 FR 49235, Sept. 25, 2009]