AB 2046 California Assembly · 2025-2026 Regular Session

Vehicles: pollution control devices.

Summary
Existing law prohibits a person from operating or leaving standing upon a highway a motor vehicle that is required to be equipped with a motor vehicle pollution control device or any other certified motor vehicle pollution control device, as specified, unless the motor vehicle is equipped with the required motor vehicle pollution control device that is correctly installed and in operating condition, and prohibits a person from disconnecting, modifying, or altering that device. Existing law also prohibits a person from installing, selling, offering for sale, or advertising any device, apparatus, or mechanism intended for use with, or as a part of, a required motor vehicle pollution control device or system that alters or modifies the original design or performance of the motor vehicle pollution control device or system. Existing law exempts from these provisions an alteration, modification, or modifying device, apparatus, or mechanism found by resolution of the State Air Resources Board to not reduce the effectiveness of a required motor vehicle pollution control device or to result in emissions from the modified or altered vehicle that comply with existing state or federal standards, as specified. A violation of these provisions is a crime. This bill would additionally exempt from the above-described provisions an alternative fuel retrofit system for a light-duty or medium-duty gasoline-fueled vehicle that converts the vehicle to a dual-fueled vehicle that can utilize gasoline or E85 fuel if the alternative fuel retrofit system has been certified by the United States Environmental Protection Agency as a clean alternative fuel conversion system, as specified, and would prohibit the State Air Resources Board from requiring state certification, executive order approval, or any additional testing or demonstration for such an alternative fuel retrofit device.
Bill status passed 3 of 5 stages cleared
Introduction
Feb 2026
Committee Review
Aug 2026
Assembly Passage
May 2026
Senate Passage
Governor
Introduced Feb 17, 2026 Last action Aug 13, 2026
Maddy AI version diff · 1 comparison

What changed between versions

02/17/26 - Introduced AB2046 · 1 edit
MINOR
No substantive policy changes occurred between these two versions. The diff reflects a reformatting of the document from a plain-text legislative layout to a web page presentation on the California Legislature website, adding navigation elements (search, links, tracking tools) around the same bill text. The actual content of AB 2046 - which would exempt EPA-certified E85 alternative fuel retrofit systems from state pollution control device requirements - is identical in both versions.
TECHNICAL

The document was reformatted from a standalone legislative text into a web page layout, adding site navigation elements (Quick Search, Bill Information, Publications, My Subscriptions, Track Bill, Compare Versions, etc.) and restructuring the presentation of the bill text. No changes to the substantive language of the bill.

Floor votes · Assembly May 21, 2026

How they voted

710
Passed · 8 other
Total votes 79
May 21, 2026
D Democratic59
54 Yea 5
91% Yea
R Republican20
17 Yea 3
85% Yea
Vote distribution
All Yea All Nay Mixed No data
Full legislative history

Actions timeline

Total actions
14
Key actions
7
Committee
10
Aug 13, 2026
Upper · Passed
In committee: Held under submission.
upper
Aug 3, 2026
Committee
In committee: Referred to APPR. suspense file.
upper
Jul 1, 2026
Upper · Passed
From committee: Do pass and re-refer to Com. on APPR. (Ayes 12. Noes 0.) (June 30). Re-referred to Com. on APPR.
upper
Jun 17, 2026
Upper · Passed
From committee: Do pass and re-refer to Com. on TRANS. (Ayes 7. Noes 0.) (June 17). Re-referred to Com. on TRANS.
upper
Jun 3, 2026
Committee
Referred to Coms. on E.Q. and TRANS.
upper
May 21, 2026
Lower · Passed
Read third time. Passed. Ordered to the Senate. (Ayes 72. Noes 0. Page 5218.)
lower
May 14, 2026
Lower · Passed
From committee: Do pass. (Ayes 15. Noes 0.) (May 14).
lower
Apr 22, 2026
Committee
In committee: Set, first hearing. Referred to APPR. suspense file.
lower
Apr 7, 2026
Lower · Passed
From committee: Do pass and re-refer to Com. on APPR. (Ayes 16. Noes 0.) (April 6). Re-referred to Com. on APPR.
lower
Mar 2, 2026
Committee
Referred to Com. on TRANS.
lower
Feb 18, 2026
Lower · Passed
From printer. May be heard in committee March 20.
lower
1 primary · 13 co-sponsors

Sponsors