CFR /  Title 46  /  Part 154  /  Sec. 154.412 Cargo tank corrosion allowance.

A cargo tank must be designed with a corrosion allowance if the cargo tank:

(a) is located in a space that does not have inert gas or dry air; or

(b) carries a cargo that corrodes the tank material.

Note: Corrosion allowance for independent tank type C is contained in Sec. 54.01-35 of this chapter.

Integral Tanks