SB 1039 California Senate · 2025-2026 Regular Session

Air resources: refinery-related community air monitoring system.

Summary
Existing law requires a refinery-related community air monitoring system to be installed near each refinery, as provided, and requires the monitoring system to include equipment capable of measuring compounds emitted to the atmosphere from refinery processes. Existing law requires owners or operators of petroleum refineries to develop, install, operate, and maintain a fence-line monitoring system in accordance with guidance developed by the appropriate regional air pollution control district or regional air quality management district. This bill would require guidance adopted to implement the fence-line monitoring system to include a process for a petroleum refinery to provide substantial evidence to the appropriate air district to exclude a pollutant for monitoring in a fence-line monitoring system and would authorize the air district to exclude a pollutant for monitoring at a petroleum refinery fence-line monitoring system if the air district determines that substantial evidence supports certain considerations. Because the bill would require air districts to revise their guidance related to the fence-line monitoring system, this bill would impose a state-mandated local program. The California Constitution requires the state to reimburse local agencies and school districts for certain costs mandated by the state. Statutory provisions establish procedures for making that reimbursement. This bill would provide that no reimbursement is required by this act for a specified reason.
Bill status in committee 1 of 4 stages cleared
Introduction
Feb 2026
Committee Review
Floor Vote
Governor
Introduced Feb 11, 2026 Last action May 14, 2026
Maddy AI version diff · 2 comparisons

What changed between versions

03/19/26 - Amended Senate SB1039 · 1 edit
MINOR
No substantive policy changes were made between these two versions. The difference is purely presentational: the bill text was reformatted from a traditional legislative document layout (with line numbers, page headers, and column formatting) into a web page rendering that includes navigation menus, search tools, and website chrome elements. All statutory provisions, definitions, requirements, and the legislative counsel's digest remain identical.
TECHNICAL

The bill text was converted from a traditional legislative document format (with line numbers, page breaks, and centered headers) to a web page layout that includes site navigation, search functionality, and metadata elements. No changes to the actual statutory language or policy content were made.

Floor votes

How they voted

No floor votes recorded yet.
Full legislative history

Actions timeline

Total actions
12
Key actions
4
Committee
3
Amendments
2
May 14, 2026
Upper · Passed
May 14 hearing: Held in committee and under submission.
upper
Apr 7, 2026
Upper · Passed
April 13 hearing postponed by committee.
upper
Mar 19, 2026
Upper · Passed
Read second time and amended. Re-referred to Com. on APPR.
upper
Mar 18, 2026
Upper · Passed
From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 4. Noes 0. Page 3600.) (March 18).
upper
Feb 18, 2026
Committee
Referred to Com. on E.Q.
upper
Feb 11, 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 Shannon Grove
Shannon Grove
RRepublican
CA
12