CA AB 643
enactedClimate change: short-lived climate pollutants: organic waste reduction.
California · 2025-2026 Regular Session · lower
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Quick answers
Did CA AB 643 pass?
Yes. CA AB 643 has been enacted into law. Latest recorded action (2026-09-20): Chaptered by Secretary of State - Chapter 358, Statutes of 2026.
What is CA AB 643 about?
Existing law establishes methane emissions reduction goals that include a target to reduce landfill disposal of organics by 75% of the 2014 level of the statewide disposal of organic waste by 2025. Existing law requires the Department of Resources Recycling and Recovery, in consultation with the State Air Resources Board, to adopt regulations to achieve the organic waste reduction goals. Existing law authorizes a local jurisdiction to count specified recovered organic waste products towards up to 10% of its recovered organic waste procurement target. This bill would additionally authorize a local jurisdiction to count a beneficial agricultural amendment derived from organic waste that may include biosolids towards up to that 10% of its recovered organic waste procurement target if the material meets the requirements to be deemed to constitute a reduction in landfill disposal, the material is registered or approved for end use as a fertilizing material by the Department of Food and Agriculture, and the material is not derived from, or processed using, specified activities relating to the final deposition or management of solid waste, as provided. The bill would require the amount of the procured materials to be calculated using the dry weight of the materials. Existing law authorizes a local jurisdiction to count compost produced and procured from specified compost operations towards its recovered organic waste procurement target, including, under specified conditions, operations composting green material, agricultural material, food material, and vegetative food material if the total amount of feedstock and compost onsite at any one time does not exceed 100 cubic yards and 750 square feet. This bill would repeal that authorization, but would instead authorize a local jurisdiction to count towards its procurement target compost produced and procured from certain composting operations, including the composting of green material, agricultural material, food material, and vegetative food material if the total amount of feedstock and compost onsite at any one time does not exceed either 200 cubic yards or, for a composting activity owned by a public agency, as defined, 500 cubic yards, amounts that may be increased by regulation, as specified.
Who sponsors CA AB 643?
Wilson is the primary sponsor of CA AB 643.
Description
Existing law establishes methane emissions reduction goals that include a target to reduce landfill disposal of organics by 75% of the 2014 level of the statewide disposal of organic waste by 2025. Existing law requires the Department of Resources Recycling and Recovery, in consultation with the State Air Resources Board, to adopt regulations to achieve the organic waste reduction goals. Existing law authorizes a local jurisdiction to count specified recovered organic waste products towards up to 10% of its recovered organic waste procurement target. This bill would additionally authorize a local jurisdiction to count a beneficial agricultural amendment derived from organic waste that may include biosolids towards up to that 10% of its recovered organic waste procurement target if the material meets the requirements to be deemed to constitute a reduction in landfill disposal, the material is registered or approved for end use as a fertilizing material by the Department of Food and Agriculture, and the material is not derived from, or processed using, specified activities relating to the final deposition or management of solid waste, as provided. The bill would require the amount of the procured materials to be calculated using the dry weight of the materials. Existing law authorizes a local jurisdiction to count compost produced and procured from specified compost operations towards its recovered organic waste procurement target, including, under specified conditions, operations composting green material, agricultural material, food material, and vegetative food material if the total amount of feedstock and compost onsite at any one time does not exceed 100 cubic yards and 750 square feet. This bill would repeal that authorization, but would instead authorize a local jurisdiction to count towards its procurement target compost produced and procured from certain composting operations, including the composting of green material, agricultural material, food material, and vegetative food material if the total amount of feedstock and compost onsite at any one time does not exceed either 200 cubic yards or, for a composting activity owned by a public agency, as defined, 500 cubic yards, amounts that may be increased by regulation, as specified.
- Introduced
- 2025-03-24
- Latest action
- 2026-09-20 — Chaptered by Secretary of State - Chapter 358, Statutes of 2026.
- Bill type
- bill
- Last updated
- —
Subjects
Sponsors
- Wilsonauthor
Committees
Not provided by source.
Action timeline
Newest first
2026-09-20
Chaptered by Secretary of State - Chapter 358, Statutes of 2026.
became-law
2026-09-20
Approved by the Governor.
executive-signature
2026-09-04
Enrolled and presented to the Governor at 4 p.m.
executive-receipt
2026-08-27
Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 75. Noes 1.).
amendment-passage,committee-passage,committee-passage-favorable
2026-08-27
Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 75. Noes 1. Page 6675.).
amendment-passage,committee-passage,committee-passage-favorable
2026-08-25
In Assembly. Concurrence in Senate amendments pending.
2026-08-25
Read third time. Passed. Ordered to the Assembly. (Ayes 39. Noes 0.).
passage,reading-1,reading-3
2026-08-24
Read second time. Ordered to third reading.
reading-1,reading-2,reading-3
2026-08-20
Ordered to third reading.
reading-1,reading-3
2026-08-20
Action rescinded whereby the bill was read third time, passed, and to Assembly.
passage,reading-1,reading-3
2026-08-20
Read third time and amended. Ordered to second reading.
amendment-passage,reading-1,reading-2,reading-3
2026-08-04
In Senate. Held at Desk.
2026-08-03
Ordered to the Senate.
2026-07-02
In Assembly. Concurrence in Senate amendments pending.
2026-07-02
Read third time. Passed. Ordered to the Assembly. (Ayes 37. Noes 0.).
passage,reading-1,reading-3
2026-07-02
Read third time. Passed. Ordered to the Assembly. (Ayes 37. Noes 0. Page 5188.).
passage,reading-1,reading-3
2026-06-30
Read second time. Ordered to Consent Calendar.
reading-1,reading-2
2026-06-29
From committee: Be ordered to second reading file pursuant to Senate Rule 28.8 and ordered to Consent Calendar.
committee-passage,reading-1,reading-2
2026-06-17
From committee: Do pass and re-refer to Com. on APPR. with recommendation: To Consent Calendar. (Ayes 7. Noes 0.) (June 17). Re-referred to Com. on APPR.
committee-passage,committee-passage-favorable,referral-committee
2026-06-03
From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Com. on E.Q.
amendment-introduction,amendment-passage,committee-passage,reading-1,reading-2,referral-committee
2026-05-28
In committee: Hearing postponed by committee.
2026-05-19
From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Com. on E.Q.
amendment-introduction,amendment-passage,committee-passage,reading-1,reading-2,referral-committee
2026-05-06
Referred to Com. on E.Q.
referral-committee
2026-01-27
In Senate. Read first time. To Com. on RLS. for assignment.
reading-1,referral-committee
2026-01-26
Read third time. Passed. Ordered to the Senate. (Ayes 60. Noes 4. Page 3837.)
passage,reading-1,reading-3
2026-01-22
Assembly Rule 63 suspended. (Page 3806.)
2026-01-22
From committee: Do pass. (Ayes 14. Noes 1.) (January 22).
committee-passage,committee-passage-favorable
2026-01-22
Read second time. Ordered to third reading.
reading-1,reading-2,reading-3
2026-01-15
Re-referred to Com. on APPR.
referral-committee
2026-01-14
Read second time and amended.
amendment-passage,reading-1,reading-2
2026-01-13
From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 12. Noes 1.) (January 12).
amendment-introduction,amendment-passage,committee-passage,referral-committee
2026-01-06
Re-referred to Com. on NAT. RES.
referral-committee
2026-01-05
From committee chair, with author's amendments: Amend, and re-refer to Com. on NAT. RES. Read second time and amended.
amendment-introduction,amendment-passage,committee-passage,reading-1,reading-2,referral-committee
2025-04-21
In committee: Hearing postponed by committee.
2025-04-08
In committee: Hearing postponed by committee.
2025-03-25
Re-referred to Com. on NAT. RES.
referral-committee
2025-03-24
From committee chair, with author's amendments: Amend, and re-refer to Com. on NAT. RES. Read second time and amended.
amendment-introduction,amendment-passage,committee-passage,reading-1,reading-2,referral-committee
2025-03-24
Referred to Com. on NAT. RES.
referral-committee
2025-02-14
From printer. May be heard in committee March 16.
2025-02-13
Read first time. To print.
reading-1
Versions
- 02/13/25 - Introduced — 2025-02-13Compare
- 03/24/25 - Amended Assembly — 2025-03-24Compare
- 01/05/26 - Amended Assembly — 2026-01-05Compare
- 01/14/26 - Amended Assembly — 2026-01-14Compare
- 05/19/26 - Amended Senate — 2026-05-19Compare
- 06/03/26 - Amended Senate — 2026-06-03Compare
- 08/20/26 - Amended Senate — 2026-08-20Compare
- 09/01/26 - Enrolled — 2026-09-01Compare
- AB643Compare
- (document, no version)Compare
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Votes
Do pass as amended and be re-referred to the Committee on [Appropriations]
2026-01-12 · pass · 12-1
Member-level votes (14)
- Schultz: yes
- Connolly: yes
- Pellerin: yes
- Zbur: yes
- Ellis: yes
- Garcia: yes
- Alanis: yes
- Bryan: yes
- Haney: yes
- Muratsuchi: yes
- Hoover: yes
- Kalra: yes
- Macedo: no
- Wicks: other
Do pass.
2026-01-22 · pass · 14-1
Member-level votes (15)
- Hoover: yes
- Wicks: yes
- Bauer-Kahan: yes
- Krell: yes
- Pacheco: yes
- Stefani: yes
- Solache: yes
- Pellerin: yes
- Caloza: yes
- Calderon: yes
- Fong: yes
- Mark González: yes
- Ta: yes
- Dixon: yes
- Tangipa: no
AB 643 Wilson Assembly Third Reading
2026-01-26 · pass · 60-4
Member-level votes (80)
- Ahrens: yes
- Mark González: yes
- Dixon: yes
- Quirk-Silva: yes
- Gipson: yes
- Addis: yes
- Haney: yes
- Hart: yes
- Fong: yes
- Calderon: yes
- Elhawary: yes
- Wilson: yes
- Carrillo: yes
- Bains: yes
- Ransom: yes
- Soria: yes
- Michelle Rodriguez: yes
- Berman: yes
- Valencia: yes
- Wicks: yes
- Connolly: yes
- Schultz: yes
- Bauer-Kahan: yes
- Ávila Farías: yes
- Schiavo: yes
- Bonta: yes
- Aguiar-Curry: yes
- Jeff Gonzalez: yes
- Pacheco: yes
- Alvarez: yes
- Castillo: yes
- Alanis: yes
- Wallis: yes
- Patterson: yes
- Stefani: yes
- Hoover: yes
- Sharp-Collins: yes
- Nguyen: yes
- Ortega: yes
- Solache: yes
- Lowenthal: yes
- Blanca Rubio: yes
- Jackson: yes
- Bryan: yes
- Gallagher: yes
- Petrie-Norris: yes
- Harabedian: yes
- Zbur: yes
- Davies: yes
- McKinnor: yes
- DeMaio: yes
- Pellerin: yes
- Irwin: yes
- Lackey: yes
- Ramos: yes
- Patel: yes
- Kalra: yes
- Sanchez: yes
- Rivas: yes
- Chen: yes
- Johnson: no
- Ellis: no
- Macedo: no
- Tangipa: no
- Caloza: other
- Lee: other
- Celeste Rodriguez: other
- Arambula: other
- Hadwick: other
- Krell: other
- Muratsuchi: other
- Bennett: other
- Papan: other
- Rogers: other
- Ward: other
- Boerner: other
- Gabriel: other
- Flora: other
- Garcia: other
- Ta: other
Do pass, but first be re-referred to the Committee on [Appropriations] with the recommendation: To Consent Calendar
2026-06-17 · pass · 7-0
Member-level votes (7)
- Allen: yes
- Dahle: yes
- Hurtado: yes
- Menjivar: yes
- Valladares: yes
- Blakespear: yes
- Gonzalez: yes
Consent Calendar 2nd
2026-07-02 · pass · 37-0
Member-level votes (40)
- Durazo: yes
- Grove: yes
- Jones: yes
- McNerney: yes
- Cabaldon: yes
- Caballero: yes
- Limón: yes
- Weber Pierson: yes
- Niello: yes
- Dahle: yes
- Padilla: yes
- Pérez: yes
- Menjivar: yes
- Seyarto: yes
- Cortese: yes
- Allen: yes
- Becker: yes
- Cervantes: yes
- Ochoa Bogh: yes
- Grayson: yes
- Choi: yes
- Wiener: yes
- Umberg: yes
- Blakespear: yes
- Strickland: yes
- Laird: yes
- Valladares: yes
- Reyes: yes
- Ashby: yes
- Hurtado: yes
- Arreguín: yes
- Gonzalez: yes
- Wahab: yes
- McGuire: yes
- Stern: yes
- Smallwood-Cuevas: yes
- Archuleta: yes
- Alvarado-Gil: other
- Rubio: other
- Richardson: other
Related bills
No related bills recorded for this bill.
Official source
Attribution
Data from openstates_api_sync, retrieved 2026-09-21T23:05:31.821105Z
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