An independent tank type A must meet the deep tank standard of the American Bureau of Shipping published in ``Rules for Building and Classing Steel Vessels'', 1981, and must:
(a) Withstand the internal pressure determined under Sec. 154.407;
(b) Withstand loads from tank supports calculated under Sec. Sec. 154.470 and 154.471; and
(c) Have a corrosion allowance that meets Sec. 154.412. [CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 77-069, 52 FR 31630, Aug. 21, 1987]