SB 1315 California Senate · 2025-2026 Regular Session

Advanced driver assistance systems.

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. For these purposes, existing law defines "autonomous vehicle." This bill would require the manufacturer of an advanced driver assistance system, or an automobile equipped with an advanced driver assistance system, to ensure a driver is able to disable or disengage either an advanced driver assistance system or autonomous technology as a condition of operating the vehicle under a condition in which manual operation was previously available. The bill would define "advanced driver assistance system" for these purposes. The bill would authorize the Attorney General, a district attorney, or a city attorney to bring a civil action to enforce those prohibitions and would authorize a civil penalty not to exceed $25,000 per violation, as specified. The bill would specify that a violation of those prohibitions is not an unlawful business practice. The bill would also make technical and conforming changes. Existing law requires the department, upon application for an original driver's license, to require an examination of the applicant. Existing law requires the examination to test, among other things, the applicant's knowledge and understanding of the provisions of the Vehicle Code governing the operation of vehicles upon the highways, an actual demonstration of the applicant's ability to exercise ordinary and reasonable control in operating a motor vehicle by driving it under the supervision of an examining officer, and a test of the applicant's hearing and eyesight, as specified. This bill would require the department, at the next regularly scheduled revision of the driver's license examination or demonstration of an applicant's ability to drive, to consider adding one or more questions that pertain to levels of advanced driver assistance systems.
Bill status passed 3 of 5 stages cleared
Introduction
Feb 2026
Committee Review
Aug 2026
Senate Passage
May 2026
Assembly Passage
Governor
Introduced Feb 20, 2026 Last action Aug 30, 2026
Maddy AI version diff · 4 comparisons

What changed between versions

06/24/26 - Amended Assembly SB1315 · 4 edits
MODERATE
The final version of SB 1315 narrowed the scope of the bill by limiting the definition of 'advanced driver assistance system' to SAE Level 2 only (previously Level 2 or Level 3), simplified the terminology throughout, and reframed the core provision from a prohibition on software updates to an affirmative requirement that drivers be able to disable or disengage the system. This means the bill's protections no longer extend to Level 3 systems, which represent a more advanced tier of automation.
SCOPE

The definition of 'advanced driver assistance system' in Section 38757(a) was narrowed from covering SAE Level 2 or Level 3 to only Level 2. This removes Level 3 systems (which can operate without active driver monitoring in certain conditions) from the bill's protections.

DEFINITION

The legislative finding in Section 38756(a) was changed from referencing 'Levels 2 to 5, inclusive' to just 'Level 2,' aligning the stated purpose with the narrowed definition.

REQUIREMENT

Section 38758(a) was reframed from a prohibition (manufacturers shall not provide software that removes or restricts driver control) to an affirmative requirement (vehicles shall ensure a driver is able to disable or disengage the system). The new language also explicitly covers 'autonomous technology' in addition to 'advanced driver assistance system.'

TECHNICAL

The bill title and terminology were simplified from 'advanced autonomous driving driver assistance system' to 'advanced driver assistance system' throughout, reflecting the narrowed scope.

Floor votes · Senate May 18, 2026

How they voted

380
Passed · 2 other
Total votes 40
May 18, 2026
D Democratic30
29 Yea 1
96% Yea
R Republican10
9 Yea 1
90% Yea
Vote distribution
All Yea All Nay Mixed No data
Full legislative history

Actions timeline

Total actions
25
Key actions
10
Committee
8
Amendments
4
Aug 13, 2026
Lower · Passed
From committee: Do pass. (Ayes 15. Noes 0.) (August 13).
lower
Jul 1, 2026
Lower · Passed
From committee: Do pass and re-refer to Com. on APPR. (Ayes 12. Noes 0.) (June 30). Re-referred to Com. on APPR.
lower
Jun 24, 2026
Lower · Passed
Read second time and amended. Re-referred to Com. on JUD.
lower
Jun 23, 2026
Lower · Passed
From committee: Do pass as amended and re-refer to Com. on JUD. (Ayes 15. Noes 0.) (June 22).
lower
Jun 8, 2026
Committee
Re-referred to Coms. on TRANS. and JUD. pursuant to Assembly Rule 96.
lower
Jun 3, 2026
Lower · Passed
From committee with author's amendments. Read second time and amended. Re-referred to Com. on INS.
lower
May 26, 2026
Committee
Referred to Coms. on INS. and TRANS.
lower
May 18, 2026
Upper · Passed
Read third time. Passed. (Ayes 38. Noes 0. Page 4317.) Ordered to the Assembly.
upper
May 4, 2026
Upper · Passed
From committee: Be ordered to second reading pursuant to Senate Rule 28.8.
upper
Apr 22, 2026
Upper · Passed
From committee: Do pass and re-refer to Com. on APPR. (Ayes 12. Noes 0. Page 3985.) (April 21). Re-referred to Com. on APPR.
upper
Apr 13, 2026
Upper · Passed
From committee with author's amendments. Read second time and amended. Re-referred to Com. on TRANS.
upper
Apr 9, 2026
Upper · Passed
From committee: Do pass and re-refer to Com. on TRANS. (Ayes 6. Noes 0. Page 3794.) (April 8). Re-referred to Com. on TRANS.
upper
Mar 11, 2026
Committee
Referred to Coms. on INS. and TRANS.
upper
Feb 20, 2026
Introduced
Introduced. To Com. on RLS. for assignment. To print.
upper
1 primary · 0 co-sponsors

Sponsors

Role
Legislator
Party
State
District
P
Photo of Christopher Cabaldon
Christopher Cabaldon
DDemocratic
CA
3