SB 1064 California Senate · 2025-2026 Regular Session

Heavy-Duty Vehicle Inspection and Maintenance Program: testing.

Summary
Existing law generally designates the State Air Resources Board as the state agency with the primary responsibility for the control of vehicular air pollution. Existing law requires the state board to develop and implement a Heavy-Duty Vehicle Inspection and Maintenance Program for nongasoline heavy-duty onroad motor vehicles with a gross vehicle weight rating of more than 14,000 pounds. Existing law requires that the program include, among other things, test procedures for different motor vehicle model years and emissions control technologies that measure the effectiveness of the control of emissions of oxides of nitrogen and particulate matter. Existing law requires, as part of the program, the state board to develop a Heavy-Duty Vehicle Inspection and Maintenance Compliance Certificate. Existing law requires the state board to issue the certificate to the legal owner, registered owner, or designee of a vehicle that, at the discretion of the state board, meets the requirements of the program so that vehicle owners and operators may easily demonstrate proof of compliance for specified purposes. This bill would limit specified testing of all nongasoline heavy-duty onroad motor vehicles with a gross vehicle weight rating of more than 14,000 pounds that are considered low use, as defined, that have an engine that is from the 2012 model year or older, and that are registered in this state, to not more frequently than annually. The bill would require the state board to adopt rules and regulations to implement this provision.
Bill status passed both 4 of 5 stages cleared
Introduction
Feb 2026
Committee Review
Jun 2026
Senate Passage
May 2026
Assembly Passage
Aug 2026
Governor
Introduced Feb 12, 2026 Last action Aug 27, 2026
Maddy AI version diff · 4 comparisons

What changed between versions

08/30/26 - Enrolled SB1064 · 1 edit
MINOR
No substantive policy changes were made between these two versions. The diff reflects a change in document format only: the 'from' version is the formal enrolled bill document with official signature blocks and passage dates, while the 'to' version is a web page rendering of the same bill text from the California legislature website. The actual legislative content (Section 44153, the digest, all criteria and thresholds) is identical in both versions.
TECHNICAL

The document changed from a formal enrolled bill format (with Governor receipt line, signature blocks, and page numbers) to a web page layout with navigation menus, search tools, and status panels. No policy language was altered.

Floor votes · Senate May 22, 2026 · Assembly Aug 20, 2026

How they voted

330
Passed · 7 other
Total votes 40
May 22, 2026
D Democratic30
25 Yea 5
83% Yea
R Republican10
8 Yea 2
80% Yea
Vote distribution
All Yea All Nay Mixed No data
Full legislative history

Actions timeline

Total actions
31
Key actions
10
Committee
5
Amendments
6
Aug 27, 2026
Upper · Passed
Assembly amendments concurred in. (Ayes 39. Noes 0.) Ordered to engrossing and enrolling.
upper
Aug 20, 2026
Introduced
In Senate. Concurrence in Assembly amendments pending.
upper
Aug 20, 2026
Lower · Passed
Read third time. Passed. Ordered to the Senate.
lower
Aug 13, 2026
Lower · Passed
Read second time and amended. Ordered to second reading.
lower
Aug 13, 2026
Lower · Passed
From committee: Do pass as amended. (Ayes 15. Noes 0.) (August 13).
lower
Jun 23, 2026
Lower · Passed
From committee: Do pass and re-refer to Com. on APPR. (Ayes 15. Noes 0.) (June 22). Re-referred to Com. on APPR.
lower
Jun 1, 2026
Committee
Referred to Com. on TRANS.
lower
May 22, 2026
Upper · Passed
Read third time. Passed. (Ayes 33. Noes 0. Page 4418.) Ordered to the Assembly.
upper
May 14, 2026
Upper · Passed
From committee: Do pass. (Ayes 7. Noes 0. Page 4263.) (May 14).
upper
Apr 23, 2026
Upper · Passed
Read second time and amended. Re-referred to Com. on APPR.
upper
Apr 22, 2026
Upper · Passed
From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 12. Noes 0. Page 3985.) (April 21).
upper
Apr 15, 2026
Upper · Passed
From committee: Do pass and re-refer to Com. on TRANS. (Ayes 7. Noes 0. Page 3900.) (April 15). Re-referred to Com. on TRANS.
upper
Feb 26, 2026
Committee
Referred to Coms. on E.Q. and TRANS.
upper
Feb 12, 2026
Introduced
Introduced. Read first time. To Com. on RLS. for assignment. To print.
upper
1 primary · 4 co-sponsors

Sponsors