SB 966 California Senate · 2025-2026 Regular Session

Refinery and chemical plants.

Summary
Existing law, the California Refinery and Chemical Plant Worker Safety Act of 1990, requires the Occupational Safety and Health Standards Board and the Division of Occupational Safety and Health to promote worker safety through implementation of training and process safety management practices in refineries, chemical plants, and other appropriate facilities, including by adopting process safety management standards and regulations. The act defines "process safety management" and other terms for its purposes. The act also requires an employer to develop and maintain written safety information, emergency action plans, operating procedures, procedures to manage changes, and inspection and testing programs. This bill would require an employer, in consultation with employees and employee representatives, to develop, implement, and maintain a written plan to effectively provide for employee participation in all process safety management elements. The bill would also require, on or before April 1, 2027, an employer, in consultation with employee and employee representatives, to develop and implement stop work procedures and procedures for reporting and responding to hazards, as specified. The bill would require an employer to document specific information relating to a partial or complete shut down of an operation or process and reports of hazards. The bill would provide how employees who are and who are not represented by an authorized collective bargaining agent participate in the development of these plans and procedures.
Bill status passed 3 of 5 stages cleared
Introduction
Feb 2026
Committee Review
Aug 2026
Senate Passage
May 2026
Assembly Passage
Governor
Introduced Feb 3, 2026 Last action Aug 13, 2026
Maddy AI version diff · 2 comparisons

What changed between versions

02/03/26 - Introduced 03/25/26 - Amended Senate · 8 edits · Mar 25, 2026
MODERATE
The amended version of SB 966 adds an entirely new section (7860.5) to the Labor Code requiring refinery and chemical plant employers to establish employee participation plans in process safety management, implement stop work procedures, and create anonymous hazard reporting systems by April 1, 2027. The original bill only made a nonsubstantive word-order change to the youth apprenticeship grant program. This amendment transforms the bill from a minor technical fix into a significant worker safety law with new employer obligations.
Scope change
The bill's scope expanded dramatically. It originally only made a nonsubstantive word-order correction to the youth apprenticeship grant program. The amendment adds an entirely new section imposing substantial obligations on refinery and chemical plant employers regarding process safety management, stop work authority, and hazard reporting.
SCOPE

A new Section 7860.5 is added to the Labor Code, expanding the bill's scope from a nonsubstantive apprenticeship amendment to a comprehensive refinery and chemical plant worker safety law.

REQUIREMENT

Employers must develop, implement, and maintain a written plan for employee participation in all process safety management elements, including process hazard analysis, damage mechanism review, management of change, incident investigations, and pre-startup safety review.

By April 1, 2027, employers must implement stop work procedures giving any employee (including contractors) the authority to refuse tasks that could reasonably result in death or serious physical harm, and the authority of qualified operators to shut down operations based on process safety hazards.

Employers must establish procedures allowing any employee to anonymously report hazards, and must respond in writing within 30 calendar days to written hazard reports, prioritizing hazards that could cause death or serious physical harm.

Employers must document all recommendations for shutdowns, actual shutdowns, and written hazard reports along with the employer's response.

ELIGIBILITY

The bill distinguishes between employees represented by an authorized collective bargaining agent (who may select representatives) and those who are not (for whom the employer must establish selection procedures in consultation with employees).

FISCAL

The fiscal committee designation changed from 'no' to 'yes,' indicating the amended bill now has a state fiscal impact requiring fiscal committee review.

TECHNICAL

The original nonsubstantive change to Section 3120 (swapping 'goals and objectives' to 'objectives and goals') is retained but renumbered from Section 1 to Section 2 of the bill.

Floor votes · Senate May 27, 2026

How they voted

309
Passed · 1 other
Total votes 40
May 27, 2026
D Democratic30
30 Yea
100% Yea
R Republican10
9 Nay 1
90% Nay
Vote distribution
All Yea All Nay Mixed No data
Full legislative history

Actions timeline

Total actions
22
Key actions
7
Committee
8
Amendments
1
Aug 13, 2026
Lower · Passed
From committee: Do pass. (Ayes 11. Noes 4.) (August 13).
lower
Jun 25, 2026
Lower · Passed
From committee: Do pass and re-refer to Com. on APPR. (Ayes 5. Noes 2.) (June 24). Re-referred to Com. on APPR.
lower
Jun 4, 2026
Committee
Referred to Com. on L. & E.
lower
May 27, 2026
Upper · Passed
Read third time. Passed. (Ayes 30. Noes 9. Page 4481.) Ordered to the Assembly.
upper
May 14, 2026
Upper · Passed
From committee: Do pass. (Ayes 5. Noes 2. Page 4259.) (May 14).
upper
Apr 23, 2026
Upper · Passed
April 27 hearing postponed by committee.
upper
Apr 15, 2026
Upper · Passed
From committee: Do pass and re-refer to Com. on APPR. (Ayes 4. Noes 1. Page 3903.) (April 15). Re-referred to Com. on APPR.
upper
Apr 8, 2026
Committee
Re-referred to Com. on L., P.E. & R.
upper
Mar 25, 2026
Upper · Passed
From committee with author's amendments. Read second time and amended. Re-referred to Com. on RLS.
upper
Feb 11, 2026
Committee
Referred to Com. on RLS.
upper
Feb 3, 2026
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
Photo of Lena Gonzalez
Lena Gonzalez
DDemocratic
CA
33