DBL 143

When required, cargo tanks shall be lined with rubber or other material acceptable to the Commandant. The interior surfaces of the cargo tanks shall be made smooth, welds chipped or ground smooth, and the surfaces thoroughly cleaned before the lining is applied. The lining material shall be resistive to attack by the cargo, not less elastic than the metal of the tank proper, and nonporous when tested after application. It shall be of substantially uniform thickness. The lining shall be directly bonded to the tank plating, or attached by other satisfactory means acceptable to the Commandant. During Cargo Tank Internal Examination, MI observed significant cracking and coating failure throughout all three cargo tanks. Vessel must successfully complete a Cargo Tank Internal Examination to the satisfaction of the Coast Guard. 46CFR 151.15-3(f)(2)