46 C.F.R. § 185.350 Fueling of vessels using fuel having a flash point of 43.3 °C (110 °F) or lower (such as gasoline).
Title 46 - Shipping
A vessel must not take on fuel having a flash point of 43.3 °C (110 °F) or lower when passengers are on board.
Title 46: Shipping
PART 185—OPERATIONS
Subpart C—Miscellaneous Operating Requirements
§ 185.350 Fueling of vessels using fuel having a flash point of 43.3 °C (110 °F) or lower (such as gasoline).

