Regulations last checked for updates: May 02, 2025

Title 46 - Shipping last revised: Mar 17, 2025
§ 151.03-21 - Filling density.

The ratio, expressed as a percentage, of the weight of cargo that may be loaded into a tank compared to the weight of water that the tank will hold at 60 °F. The weight of a gallon of water at 60 °F in air shall be 8.32828 pounds.

authority: 33 U.S.C. 1903; 46 U.S.C. 3703; Department of Homeland Security Delegation No. 0170.1
source: CGFR 70-10, 35 FR 3714, Feb. 25, 1970, unless otherwise noted.
cite as: 46 CFR 151.03-21