SB 1031 California Senate · 2025-2026 Regular Session

Solid waste: compostable products.

Summary
Existing law prohibits a person from selling or offering for sale a product, as defined, that is labeled with the term "compostable" or "home compostable" unless, among others, the product is labeled in a manner that distinguishes the product from a noncompostable product upon reasonable inspection by consumers and to help enable efficient processing by solid waste processing facilities. This bill would instead require the product to be labeled in a manner that distinguishes the product from a noncompostable product upon reasonable inspection by consumers and by solid waste processing facilities during receiving and processing. The bill would require a plastic product that meets certain ASTM standard specifications regarding the compostability of plastics to be labeled with the word "compostable," as specified. This bill would require the Office of Environmental Health Hazard Assessment to conduct a study evaluating the health effects of degraded compostable plastics and their additives, as provided. The bill would require the office to provide biennial status updates, which may include a compilation of the study findings into a report, and to post the final report on its internet website.
Bill status passed 3 of 5 stages cleared
Introduction
Feb 2026
Committee Review
Aug 2026
Senate Passage
May 2026
Assembly Passage
Governor
Introduced Feb 10, 2026 Last action Aug 13, 2026
Maddy AI version diff · 4 comparisons

What changed between versions

05/14/26 - Amended Senate SB1031 · 1 edit
MINOR
No substantive policy changes occurred between these two versions. The difference is entirely presentational: the bill text was reformatted from a traditional legislative document (with line numbers, page headers, and centered formatting) into a web-based bill tracking system layout (with navigation menus, quick search, and different text structure). All provisions of Section 42357 and Section 42357.1 remain identical.
TECHNICAL

The bill was reformatted from a traditional legislative document with line numbers and page headers into a web-based presentation format for the state legislature's online bill tracking system, including added navigation elements, quick search fields, and restructured layout.

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
20
Key actions
8
Committee
5
Amendments
5
Aug 13, 2026
Lower · Passed
August 13 hearing: Held in committee and under submission.
lower
Jun 23, 2026
Lower · Passed
From committee: Do pass and re-refer to Com. on APPR. (Ayes 10. Noes 4.) (June 22). Re-referred to Com. on APPR.
lower
Jun 4, 2026
Committee
Referred to Com. on NAT. RES.
lower
May 27, 2026
Upper · Passed
Read third time. Passed. (Ayes 30. Noes 9. Page 4498.) Ordered to the Assembly.
upper
May 14, 2026
Upper · Passed
Read second time and amended. Ordered to second reading.
upper
May 14, 2026
Upper · Passed
From committee: Do pass as amended. (Ayes 5. Noes 2. Page 4262.) (May 14).
upper
Apr 16, 2026
Upper · Passed
Read second time and amended. Re-referred to Com. on APPR.
upper
Apr 15, 2026
Upper · Passed
From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 5. Noes 2. Page 3900.) (April 15).
upper
Apr 8, 2026
Committee
Re-referred to Com. on E.Q.
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 18, 2026
Committee
Referred to Com. on RLS.
upper
Feb 10, 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 Catherine Blakespear
Catherine Blakespear
DDemocratic
CA
38