46 C.F.R. § 154.419 Design vapor pressure.
Title 46 - Shipping
The Po of an integral tank must not exceed 24.5 kPa gauge (3.55 psig) unless special approval by the Commandant (G-MSO) allows a Po between 24.5 kPa gauge (3.55 psig) and 69 kPa gauge (10 psig). [CGD 74–289, 44 FR 26009, May 3, 1979, as amended by CGD 82–063b, 48 FR 4782, Feb. 3, 1983]
Title 46: Shipping
PART 154—SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES
Subpart C—Design, Construction and Equipment
Integral Tanks
§ 154.419 Design vapor pressure.
