Unless waived under Sec. 153.491, for a ship to have its Certificate of Inspection or Certificate of Compliance endorsed allowing a tank to carry a Category B NLS with a melting point of 15 [deg]C or more, the cargo tank must have--
(a) An arrangement enabling the cargo to be heated before cargo transfer, using heat supplied by the ship or by another source; and
(b) Sides and bottom separate from the ship's side or bottom shell plating.