Semi-trailers or other mobile facilities used to transport blasting agents on site or on highways are considered adequate for blasting agent storage, provided they meet:

(1) U.S. DOT requirements for transportation of blasting agents.

(2) The requirements of Table H-20, Table of Distances for Storage of Explosives with respect to inhabited buildings, passenger railways, and public highways.

(3) The requirements of Table H-22, Separation Distances of Ammonium Nitrate and Blasting Agents from Explosives or Blasting Agents with respect to one another.