46 CFR § 169.615
Diesel fuel systems
April 15, 2021
(a) Except as provided in paragraph (b) each diesel fuel system must meet the requirements of §56.50-75 of this chapter.
(b) Each vessel of 65 feet and under must meet the requirements of §§182.20-22, 182.20-25, 182,20-30, 182.20-35 and 182.20-40 of this chapter.