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AB-626 • 2026

Underground storage tanks: design and construction requirements: exemption.

Underground storage tanks: design and construction requirements: exemption.

Active

The official status still shows this bill as active or still awaiting another formal step.

Sponsor
Papan
Last action
Official status
Assembly - Died - Appropriations
Effective date
Not listed

Plain English Breakdown

The provided official summary and digest texts contain contradictory dates for the upgrade deadline (September 30, 2025 vs. December 31, 2025), making it impossible to confirm which date is correct without viewing the final enrolled bill text.

Exemption from Closing Old Underground Storage Tanks

This law allows operators of old single-walled underground storage tanks to avoid closing them if they prove they are working in good faith to upgrade the tanks by a set deadline.

What This Bill Does

  • Creates an exemption for tank owners who do not have to permanently close their tanks under current rules if they meet specified conditions.
  • Requires operators of single-walled tanks to submit a written request to local agencies before September 30, 2025.
  • Mandates that local enforcement agencies review requests and make a decision within 60 days of receipt.
  • Requires local agencies to send their decisions to both the tank operator and the State Water Resources Control Board.
  • Establishes this as an urgency statute so it takes effect immediately upon passage.

Who It Names or Affects

  • Operators of single-walled underground storage tanks installed on or before January 1, 1984.
  • Local enforcement agencies responsible for reviewing exemption requests.
  • The State Water Resources Control Board, which receives copies of agency decisions.

Terms To Know

Underground Storage Tank (UST)
A tank or system located underground used to store hazardous substances like fuel.
Single-walled UST
An older type of storage tank with only one layer, which does not meet current safety standards for double protection unless an exemption applies.
Double-walled UST
A newer type of storage tank designed to provide both primary and secondary containment to prevent leaks from reaching the soil or water.

Limits and Unknowns

  • The official text contains conflicting dates regarding whether upgrades are due by September 30, 2025, or December 31, 2025.
  • Reimbursement for local agency costs depends on a future determination by the Commission on State Mandates.

Bill History

  1. California Legislative Information

    Assembly - Died - Appropriations

Official Summary Text

Underground storage tanks: design and construction requirements: exemption.