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California bills · 2025-2026 Regular Session

California AB 93

Water resources: data centers.

  1. Introduced
  2. In committee
  3. Passed House
  4. Passed Senate
  5. To Governor
  6. Vetoed

Sponsors

Summary

Official abstract published by the California legislature· summary

Existing law authorizes the legislative body of an incorporated city and the county board of supervisors to license businesses carried on within their respective jurisdictions and to set license fees, as specified. This bill would require a person who owns or operates a data center, prior to applying to a city or a county for an initial business license, equivalent instrument, or permit, to provide its water supplier, under penalty of perjury, an estimate of the expected water use. When applying to a city or county for an initial business license, the bill would require a person who owns or operates a data center to self-certify, under penalty of perjury, on the application that the person has provided its water supplier an estimate of the expected water use. When applying to a city or county for a renewal of a business license, equivalent instrument, or permit, the bill would require a person who owns or operates a data center to self-certify, under penalty of perjury, on the application, that they have provided the data center's water supplier with a report of the annual water use. By expanding the crime of perjury, the bill would impose a state-mandated local program. The bill would authorize the Department of Water Resources, as part of any efficiency standard adopted under a specified provision of law, to identify different tiers of data centers, based on factors affecting water consumption, and appropriate standards for each data tier. The bill would define terms for purposes of these provisions. The bill would include findings that changes proposed by this bill address a matter of statewide concern rather than a municipal affair and, therefore, apply to all cities, including charter cities. The California Constitution requires the state to reimburse local agencies and school districts for certain costs mandated by the state. Statutory provisions establish procedures for making that reimbursement. This bill would provide that no reimbursement is required by this act for a specified reason.

Text versions

Roll-call votes

State vote data last updated Oct 15, 2026, 8:06 AM.

DateVoteResultYour legislators
Sep 11, 2025
House		AB 93 Papan Concurrence in Senate AmendmentspassSet your home in California to see
Sep 10, 2025
Senate		3rd Reading AB93 Papan By LairdpassSet your home in California to see
Aug 29, 2025
Senate		Do pass as amendedpassSet your home in California to see
Aug 18, 2025
Senate		Placed on suspense filepassSet your home in California to see
Jul 16, 2025
Senate		Do pass as amended, but first amend, and re-refer to the Committee on [Appropriations]passSet your home in California to see
Jun 24, 2025
Senate		Do pass, but first be re-referred to the Committee on [Local Government]passSet your home in California to see
May 29, 2025
House		AB 93 Papan Assembly Third ReadingpassSet your home in California to see
May 23, 2025
House		Do pass.passSet your home in California to see
Apr 30, 2025
House		Do pass as amended and be re-referred to the Committee on [Appropriations]passSet your home in California to see
Apr 8, 2025
House		Do pass as amended and be re-referred to the Committee on [Local Government]passSet your home in California to see

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