Autonomous vehicles.
Summary
Existing law authorizes the operation of an autonomous vehicle on public roads for testing purposes by a driver who possesses the proper class of license for the type of vehicle operated if specified requirements are satisfied. Existing law prohibits the operation of an autonomous vehicle on public roads until the manufacturer submits an application to the Department of Motor Vehicles, as specified, and that application is approved. Existing law requires the department to adopt regulations setting forth requirements for the submission and approval of an application, including, among other things, any testing, equipment, and performance standards the department concludes are necessary to ensure the safe operation of autonomous vehicles on public roads, as specified. This bill would, commencing January 1, 2026, authorize an autonomous vehicle to be equipped with automated driving system (ADS) marker lamps in accordance with specified standards. For purposes of this provision, the bill would define an "ADS marker lamp" as a device that emits a light to indicate when an ADS is engaged in the operation of the vehicle. The bill would also make conforming changes.
Bill status
signed
all 5 stages cleared
Introduction
Feb 2025
Committee Review
Aug 2025
Senate Passage
May 2025
Assembly Passage
Aug 2025
Signed into Law
Oct 2025
Introduced Feb 19, 2025
Signed Oct 6, 2025
Maddy AI version diff · 4 comparisons
What changed between versions
02/19/25 - Introduced
→
06/26/25 - Amended Assembly
·
3 edits
·
Jun 26, 2025
MINOR
The Assembly amendment expands SB 480 to also amend Section 25950 of the Vehicle Code, which governs the color of vehicle lamps and reflectors. It adds ADS marker lamps as an explicit exception to both the front-facing (white/yellow) and rear-facing (red) color requirements, allowing autonomous vehicles to use distinctive colored lights to signal when their automated driving system is engaged. This is a conforming change that supports the existing ADS marker lamp provision in Section 38750(i), which already permits such lamps starting January 1, 2026.
Scope change
The bill's scope expanded from solely regulating autonomous vehicle operations (Section 38750) to also modifying the general vehicle lighting color requirements in Section 25950, creating explicit exemptions for ADS marker lamps from standard front and rear light color rules.
SCOPE
The bill now amends Section 25950 of the Vehicle Code in addition to Section 38750, expanding its reach into general vehicle lighting color rules.
REQUIREMENT
Section 25950(a)(4) adds ADS marker lamps on autonomous vehicles as an exception to the rule that all front-facing lamp light must be white or yellow, permitting a different color for these indicators.
Section 25950(b)(7) adds ADS marker lamps on autonomous vehicles as an exception to the rule that all rear-facing lamp light must be red, again permitting a distinctive color.
Floor votes · Senate May 27, 2025 · Assembly Aug 28, 2025
How they voted
39–0
Passed · 1 other
Total votes 40
May 27, 2025
D
Democratic30
96% Yea
R
Republican10
100% Yea
Vote distribution
All Yea
All Nay
Mixed
No data
Full legislative history
Actions timeline
Total actions
22
Key actions
10
Committee
7
Amendments
3
Oct 6, 2025
Signed into law
Approved by the Governor.
legislature
Sep 3, 2025
Upper · Passed
Assembly amendments concurred in. (Ayes 40. Noes 0. Page 2443.) Ordered to engrossing and enrolling.
upper
Aug 28, 2025
Introduced
In Senate. Concurrence in Assembly amendments pending.
upper
Aug 28, 2025
Lower · Passed
Read third time. Passed. (Ayes 74. Noes 0. Page 2776.) Ordered to the Senate.
lower
Aug 20, 2025
Lower · Passed
From committee: Do pass. Ordered to consent calendar. (Ayes 15. Noes 0.) (August 20).
lower
Jul 17, 2025
Lower · Passed
From committee: Do pass and re-refer to Com. on APPR. with recommendation: To consent calendar. (Ayes 9. Noes 0.) (July 16). Re-referred to Com. on APPR.
lower
Jul 8, 2025
Lower · Passed
From committee: Do pass and re-refer to Com. on C. & C. with recommendation: To consent calendar. (Ayes 16. Noes 0.) (July 7). Re-referred to Com. on C. & C.
lower
Jun 26, 2025
Lower · Passed
From committee with author's amendments. Read second time and amended. Re-referred to Com. on TRANS.
lower
Jun 5, 2025
Committee
Referred to Coms. on TRANS. and C. & C.
lower
May 27, 2025
Upper · Passed
Read third time. Passed. (Ayes 39. Noes 0. Page 1236.) Ordered to the Assembly.
upper
Apr 7, 2025
Upper · Passed
From committee: Be ordered to second reading pursuant to Senate Rule 28.8.
upper
Mar 26, 2025
Upper · Passed
From committee: Do pass and re-refer to Com. on APPR. (Ayes 14. Noes 0. Page 534.) (March 25). Re-referred to Com. on APPR.
upper
Feb 26, 2025
Committee
Referred to Com. on TRANS.
upper
Feb 19, 2025
Introduced
Introduced. Read first time. To Com. on RLS. for assignment. To print.
upper
1 primary · 0 co-sponsors
Sponsors
Role
Legislator
Party
State
District
P
Bob Archuleta
DDemocratic
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