Regulations last checked for updates: May 01, 2025

Title 46 - Shipping last revised: Mar 17, 2025
§ 98.25-5 - How anhydrous ammonia may be carried.

(a) Anhydrous ammonia shall be carried in unfired pressure vessel type tanks independent of the structure as detailed in this part, except as otherwise provided in paragraph (b) of this section.

(b) When anhydrous ammonia is to be transported at its boiling temperature at or near atmospheric pressure, the Commandant may permit the use of alternate methods of storage if it is shown to his satisfaction that a degree of safety is obtained consistent with the minimum requirements of this subpart.

authority: 33 U.S.C. 1903; 46 U.S.C. 3306,3307,3703; 49 U.S.C. App. 1804; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; Department of Homeland Security Delegation No. 0170.1
source: CGFR 65-50, 30 FR 17022, Dec. 30, 1965, unless otherwise noted.
cite as: 46 CFR 98.25-5