46 C.F.R. § 64.25 Cross section.
Title 46 - Shipping
A tank must have a cross section design that is— (a) Circular; or (b) Other than circular and stress analyzed experimentally by the method contained in UG–101 of the ASME Code. [CGD 73–172, 39 FR 22950, June 25, 1974, as amended by CGD 84–043, 55 FR 37410, Sept. 11, 1990]
Title 46: Shipping
PART 64—MARINE PORTABLE TANKS AND CARGO HANDLING SYSTEMS
Subpart B—Standards for an MPT
§ 64.25 Cross section.