What Is A Protected Above Ground Tank?


Above ground storage tank requirements


The following procedures should be followed in addition to all applicable Federal, State and Local laws.




A permit is required for the installation, removal, operation, repair or alteration of ASTs used to store and dispense flammable or combustible liquids. Applicants must get a license from the Tucson Fire Department and Department of Development Services for AST’s. 


The construction plans must be submitted with an application for a license. The applicant will present a site plan showing the tank’s position with respect to adjacent buildings and lines of the land. The plans shall include the design, specifications and details. The site plan includes tank specifications.


Tanks must meet a nationally recognized testing laboratory listing such as Underwriters

Laboratory, ASME, or designed and built in accordance with recognized engineering



  • The tank location may depend on the tank size and the type of liquid that is held. Zoning restrictions include limits on tank capacity, large setback distances from residential zoning, and criteria for tank screening. Installation owners will review all applicable regulations before making a decision to replace UST’s with AST’s.


  • Some secondary containment means are required and must hold 100 percent of the largest tank’s capacity. The secondary containment may be a double-wall tank or a diked area tank. If a diked area is used as a secondary containment it is necessary to provide a means to remove water.


  • Vent piping for liquids of Class I, II or IIIA must be mounted not less than 12 feet above adjacent ground level and not less than 5 feet from the opening of a structure. It also requires emergency venting.


  • Dispensing shall be from a pump specified, drawing from the top of the tank. Gravity discharge tanks are forbidden unless they are installed on a temporary site. The location of the dispensing may not be less than 10 feet from any building or property line, and at least 20 feet from all fixed ignition sources. To avoid siphoning, tank openings, tubing, and valves should be fixed.


  • Guard posts or other means for the defense of tanks from vehicular damage shall be provided. Tanks must be labeled with the name of the drug, and no signs of smoking. To avoid static electricity the tanks must be grounded or bonded. A 2A20BC fire extinguisher or larger one must remain available at all times.

AST Installation Checklist


  • Obtain permits from the Tucson Fire Department and the Development Services Department.
  • Submit the installation plans with permit applications.
  • List quantities and types of liquids to be stored.
  • Provide distances from property lines and buildings to tanks and dispensers.
  • Provide location of fire extinguisher.
  • Provide vehicle impact protection.
  • List overfill protection, spill containment, vents, vapor recovery, dispensers, and other
  • equipment and accessories.
  • Arrange tank openings, pumps, and valves to prevent siphoning.
  • Ground and bond tank to prevent static electricity.
  • Comply with seismic design in accordance with the Building Code.
  • Provide secondary containment.
  • Provide normal venting with flame arresters.
  • Provide emergency venting IAW tank manufacturer specifications.
  • Provide emergency shutoff controls.
  • Ensure the tank is labeled with the product name and no smoking signs. 

Contact the Premier Source for Remote Fill Systems


Remote Fill Systems is the premier source for remote fill tanks and systems for generator fueling. We are committed to providing knowledgeable and experienced support to our customers from design and application through startup and commissioning. Our team has many years of experience with fuel oil as well as long experience in industrial process control and mechanical HVAC and piping systems. We have developed innovative and cost-effective products in response to customer needs, such as:

Concealment of the Remote Fill — Architects want to retain the appearance of their designs. The Concealed Underground Remote Fill allows the appearance and beauty of a building to be undisturbed. The Concealed Underground Remote Fill provides a code compliance solution where the required clearance to building openings cannot be achieved with an above ground product.