46 C.F.R. § 64.49 Labeling openings.
Title 46 - Shipping
Each opening of a tank must be labeled to identify the function such as “suction”, “discharge”, “heating coil”.
Title 46: Shipping
PART 64—MARINE PORTABLE TANKS AND CARGO HANDLING SYSTEMS
Subpart B—Standards for an MPT
§ 64.49 Labeling openings.
