1. (a) The owner or operator of a cargo truck that meets the criteria specified in Env-Or 501.02(d) shall install and maintain a stage I system to serve the cargo truck that is a certified vapor recovery system.
2. (b) All hoses and stage I equipment on the cargo truck shall be specifically manufactured for use in transferring gasoline or otherwise certified by the manufacturer as compatible with gasoline.

3. (c) The cargo truck shall be connected during gasoline delivery to a gasoline storage tank using:

   1. (1) For a coaxial system, a separate coaxial coupling with one vapor return hose used for every fill hose in service;
   2. (2) For a 2-point system where the tanks are connected with a manifold, a minimum of one vapor return hose used for every 2 fill hoses in service; and
   3. (3) For a 2-point system where the tanks are not connected with a manifold, a separate vapor recovery connection at each tank being filled.

Source. (See Revision Note #1 and Revision Note #2 at chapter heading for Env-Or 500) #10229, eff 11-17-12; ss by #13458, eff 10-7-23