The allowable stress for the integral tank structure must meet the American Bureau of Shipping's allowable stress for the vessel's hull published in ``Rules for Building and Classing Steel Vessels'', 1981. [CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 77-069, 52 FR 31630, Aug. 21, 1987]
Membrane Tanks