AB 915 California Assembly · 2025-2026 Regular Session

Dam safety: state supervision: exceptions.

Summary
Existing law regulates the construction and operation of dams and exempts certain structures for these purposes. Existing law exempts certain wastewater treatment and storage ponds constructed as part of a wastewater control facility, as provided, from the requirements for state regulation and supervision of the safety of dams. This bill would additionally exempt from the requirements for state regulation and supervision of the safety of dams certain water storage facilities, structures, and activities associated with an energy storage system facility located in the County of Kern, as specified, that uses compressed air technology and meets certain criteria, including, among other things, a maximum water pool height of 25 feet or less from the final engineered grade, a maximum storage capacity of 1,500 acre-feet or less, and supervision of the design and construction by a registered civil engineer. This bill would make legislative findings and declarations as to the necessity of a special statute for the County of Kern.
Bill status vetoed 4 of 5 stages cleared
Introduction
Feb 2025
Committee Review
Sep 2025
Assembly Passage
Jun 2025
Senate Passage
Sep 2025
Vetoed
Oct 2025
Introduced Feb 19, 2025 Vetoed Oct 1, 2025
Maddy AI version diff · 6 comparisons

What changed between versions

06/23/25 - Amended Senate 07/17/25 - Amended Senate · 4 edits · Jul 17, 2025
MODERATE
The July 17 amendment dramatically narrows AB 915 from a broader clean energy facilitation bill into a targeted special statute for a single project in Kern County. It removes the requirement for the Energy Commission to establish a statewide pool of clean energy siting and permitting experts, and restricts the dam safety exemption for compressed air energy storage facilities to one specific geographic area (north of Dawn Road between State Route 14 and Sierra Highway in Kern County). The broad legislative findings about California's clean energy goals and county infrastructure challenges are replaced with a single finding justifying a special statute for that unique project.
SCOPE

Removed the entire requirement for the Energy Commission to establish a state central pool of subject matter experts with experience in clean energy project siting and permitting (former Section 25238 of the Public Resources Code).

Removed extensive legislative findings about California's clean energy buildout targets (19 GW solar, 7 GW wind, 15 GW storage), county infrastructure challenges, and the Clean Energy Reliability Investment Plan (CERIP) funding gap.

Added a legislative finding that a special statute is necessary under Section 16 of Article IV of the California Constitution because of the unique project to be located in Kern County, confirming this is now a single-project bill rather than a general law.

ELIGIBILITY

The dam safety exemption for compressed air energy storage water facilities is now geographically limited to the County of Kern, specifically north of Dawn Road between State Route 14 and Sierra Highway, rather than applying statewide to any qualifying facility.

Floor votes · Senate Sep 11, 2025 · Assembly Jun 3, 2025

How they voted

400
Passed
Total votes 40
Sep 11, 2025
D Democratic30
30 Yea
100% Yea
R Republican10
10 Yea
100% Yea
Vote distribution
All Yea All Nay Mixed No data
Full legislative history

Actions timeline

Total actions
34
Key actions
10
Committee
11
Amendments
8
Jan 22, 2026
Vetoed
Consideration of Governor's veto stricken from file.
lower
Oct 1, 2025
Vetoed
Consideration of Governor's veto pending.
lower
Oct 1, 2025
Vetoed
Vetoed by Governor.
lower
Sep 13, 2025
Lower · Passed
Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 77. Noes 0. Page 3460.).
lower
Sep 12, 2025
Lower · Passed
From committee: That the Senate amendments be concurred in. (Ayes 13. Noes 0.) (September 12).
lower
Sep 12, 2025
Committee
Re-referred to Com. on W. P., & W. pursuant to Assembly Rule 77.2.
lower
Sep 12, 2025
Introduced
In Assembly. Concurrence in Senate amendments pending.
lower
Sep 11, 2025
Upper · Passed
Read third time. Passed. Ordered to the Assembly. (Ayes 40. Noes 0. Page 2884.).
upper
Aug 19, 2025
Upper · Passed
From committee: Be ordered to second reading pursuant to Senate Rule 28.8.
upper
Jul 17, 2025
Upper · Passed
Read second time and amended. Re-referred to Com. on APPR.
upper
Jul 16, 2025
Introduced
From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 7. Noes 0.) (July 16).
upper
Jun 25, 2025
Committee
Re-referred to Com. on N.R. & W.
upper
Jun 24, 2025
Committee
Re-referred to Com. on RLS.
upper
Jun 23, 2025
Introduced
From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Com. on E., U & C.
upper
Jun 11, 2025
Committee
Referred to Com. on E., U & C.
upper
Jun 3, 2025
Assembly · Passed
Assembly Vote: pass (77-0-1)
assembly
Jun 2, 2025
Lower · Passed
Read third time. Passed. Ordered to the Senate. (Ayes 78. Noes 0. Page 1910.)
lower
May 23, 2025
Lower · Passed
Read second time and amended. Ordered returned to second reading.
lower
May 23, 2025
Introduced
From committee: Amend, and do pass as amended. (Ayes 11. Noes 0.) (May 23).
lower
May 14, 2025
Committee
In committee: Set, first hearing. Referred to APPR. suspense file.
lower
May 1, 2025
Lower · Passed
From committee: Do pass and re-refer to Com. on APPR. with recommendation: To Consent Calendar. (Ayes 18. Noes 0.) (April 30). Re-referred to Com. on APPR.
lower
Apr 23, 2025
Committee
Re-referred to Com. on U. & E.
lower
Apr 22, 2025
Introduced
From committee chair, with author's amendments: Amend, and re-refer to Com. on U. & E. Read second time and amended.
lower
Apr 21, 2025
Committee
Referred to Com. on U. & E.
lower
Feb 20, 2025
Lower · Passed
From printer. May be heard in committee March 22.
lower
1 primary · 0 co-sponsors

Sponsors

Role
Legislator
Party
State
District
P
Photo of Cottie Petrie-Norris
Cottie Petrie-Norris
DDemocratic
CA
73