Underground Storage Tank (UST) Program

Underground storage tank system illustration

UST Delivery Prohibition

On Jan. 1, 2009, state statute1 gave ADEQ the authority to issue a stop-use order to the owner and operator of an Underground Storage Tank (UST) system if the UST is in violation of Arizona's UST rules and regulations. The continued operation of the UST may result in a continued release or a new release from the UST. The stop-use order becomes effective immediately on issuance and suspends the use of the underground storage tank until the owner and operator has returned the UST to full compliance with Arizona's UST rules and regulations.

Current Delivery Prohibition List | Download >