1 Scope

1.1 These requirements cover mechanical type accessories that are typically intended for attachment to storage tanks or connecting pipe for flammable and combustible liquids in commercial (public) or private (fleet) automotive fueling station and similar storage or dispensing applications and are designed to provide automatic safety or operational functions.

1.2 These products may be used with underground or aboveground tank systems and with liquid and/or vapor phases of the fuels and similar fuels or liquids covered by each Part of this Standard as identified below:

1. a) Part I Vapor Control Products – applies to functional devices and accessories intended for connection to tank top openings (directly on fittings or indirectly on pipe) and perform safety or operational functions in vapor spaces, such as emergency vents, normal vents, interstitial vacuum/e-vent plugs, adapters and caps.

2. b) Part II Liquid Control Products – applies to functional devices and accessories intended for connection to tank top openings (directly on fittings or indirectly on pipe) and perform safety or operational functions in liquid spaces, such as spill containment devices, overfill prevention devices, and liquid level gauges.

3. c) Part III Structural and Containment Products (reserved for future use) – applies to metallic components such as access devices, manways, supports, and dikes.

4. d) Part IV Corrosion Protection Products (reserved for future use) – applies to components such as tank anchors, coatings and resins.

5. e) Part V Miscellaneous Products – applies to devices and accessories such as portable/mobile tank spill prevention devices, lift lugs, striker plates and monitor well caps.

Summary of Topics

This First edition of ANSI/CAN/UL/ULC 2583 dated December 8, 2021, Standard for Fuel Tank Accessories for Flammable and Combustible Liquids, has been issued to reflect the latest ANSI and SCC approval dates, and to incorporate the proposals dated March 5, 2021 and July 30, 2021.