1. (a) The owner or operator of a gasoline dispensing facility that is subject to this part shall:

   1. (1) Install and maintain a stage I system that is a certified vapor recovery system;
   2. (2) Equip each vent pipe on an underground or aboveground gasoline storage tank with a PV vent cap, provided that reconstructed or newly constructed vent pipes installed after the 2022 effective date of this chapter shall be threaded and the caps approved by the California Air Resources Board (CARB);
   3. (3) Label each PV vent cap with the cap’s rated pressure and vacuum relief setting;
   4. (4) Position the label specified in (3), above, so that it is visible from ground level;
   5. (5) Install a submerged fill tube as specified in Env-Or 503.01;
   6. (6) For a 2-point system, replace any failed fill adaptor with a swivel adaptor:
   7. (7) For a new facility, install a 2-point system;
   8. (8) For existing coaxial fills, for any substantial modification to the tank top or replacement of the system, replace with a 2-point system; and
   9. (9) Install a fill adaptor cap with a properly sealed gasket attached at all times, except when gasoline is being delivered.

2. (b) Unless otherwise specified in an applicable reference standard for the installed certified vapor recovery system, the owner or operator shall install PV vent caps on underground gasoline storage tanks and on aboveground gasoline storage tanks as follows:

   1. (1) For pressure, 2.5 to 6.0 inches water column pressure; and
   2. (2) For vacuum, 6.0 to 10.0 inches water column vacuum.

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