46 C.F.R. § 153.240 Insulation.
Title 46 - Shipping
Cargo containment system insulation made necessary by the requirements of this part must meet the requirements in §38.05–20 of this chapter. However, the vapor barrier required by §38.05–20(b) is unnecessary if the insulation is: (a) Protected from the weather, and attached to a containment system maintained at a temperature in excess of 46 °C (approx. 115 °F); or (b) In an atmosphere whose dewpoint is less than the temperature of any surface in contact with the insulation.
Title 46: Shipping
PART 153—SHIPS CARRYING BULK LIQUID, LIQUEFIED GAS, OR COMPRESSED GAS HAZARDOUS MATERIALS
Subpart B—Design and Equipment
Cargo Containment Systems
§ 153.240 Insulation.
