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AB 2112: Greenhouse gases: soil carbon sequestration.

California · Assembly · 2025–2026 Regular Session · last verified May 16, 2026

What AB 2112 does, verified May 16, 2026

<p>The bill amends existing California law by requiring an expert in soil carbon sequestration to be included in an advisory committee established under the Global Warming Solutions Act of 2006. It also establishes the Climate-Smart Organics Management for Protecting Our Soil and Terrain (COMPOST) Act, which mandates the Natural Resources Agency to develop a nature-based climate strategy by January 1, 2028. This strategy aims to link waste diversion goals with soil health practices on natural and working lands, focusing on increasing compost production and use to improve vegetation and carbon storage. The bill requires annual updates to this strategy and sets a goal of reducing at least 5 million metric tons of greenhouse gas emissions annually.</p>

Bill journey

1IntroducedCurrent

2In CommitteePending

3First Chamber FloorPending

4Second ChamberPending

5GovernorPending

6ChapteredPending

Last action: In committee: Held under submission. (2026-05-14)Alert me

Author and sponsors

Asm. Jasmeet Kaur BainsAuthor · California State Assembly

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Recent actions8 total · showing 5

May. 14, 2026	In committee: Held under submission.
May. 06, 2026	In committee: Set, first hearing. Referred to APPR. suspense file.
Apr. 21, 2026	From committee: Do pass and re-refer to Com. on APPR. with recommendation: To Consent Calendar. (Ayes 14. Noes 0.) (April 20). Re-referred to Com. on APPR.
Apr. 14, 2026	Re-referred to Com. on NAT. RES.
Apr. 13, 2026	From committee chair, with author's amendments: Amend, and re-refer to Com. on NAT. RES. Read second time and amended.

Full action history, 3 earlier actionsConnect Plus

Latest bill textAmended version, April 13, 2026 · 2,615 words

Amended IN Assembly April 13, 2026

CALIFORNIA LEGISLATURE— 2025–2026 REGULAR SESSION

Assembly Bill

No. 2112

Introduced by Assembly Member Bains

February 18, 2026

An act to ~~amend, repeal, and add Section 41821.4 of the Public Resources Code, relating to solid waste.~~ amend Section 38561.5 of, and to add Section 38561.9 to, the Health and Safety Code, relating to greenhouse gases.

LEGISLATIVE COUNSEL'S DIGEST

AB 2112, as amended, Bains. ~~Integrated waste management plans: annual report.~~ Greenhouse gases: soil carbon sequestration.

The California Global Warming Solutions Act of 2006 establishes the State Air Resources Board as the state agency responsible for monitoring and regulating sources emitting greenhouse gases and requires the state board to ensure that statewide greenhouse gas emissions are reduced to at least 40% below the 1990 level no later than December 31, 2030. The act declares the policy of the state to achieve net zero greenhouse gas emissions as soon as possible, but no later than 2045, and to achieve and maintain net negative greenhouse gas emissions thereafter.
The act also requires the Natural Resources Agency, in collaboration with specified entities, to determine an ambitious range of targets for natural carbon sequestration, and for nature-based climate solutions, that reduce greenhouse gas emissions for 2030, 2038, and 2045 to support state goals to achieve carbon neutrality and foster climate adaptation and resilience. The act requires the Natural Resources Agency and the state board to establish an expert advisory committee composed of specified entities to provide recommendations on addressing barriers to efficient implementation of the provisions relating to climate targets.
This bill would additionally require that expert advisory committee to include an expert in soil carbon sequestration. The bill would establish the Climate-smart Organics Management for Protecting Our Soil and Terrain (COMPOST) Act of 2026. The bill would require the Natural Resources Agency, in collaboration with specified entities, to, on or before January 1, 2028, develop an integrated nature-based climate strategy to link waste diversion goals with soil health practices on natural and working lands. The bill would require the strategy to include multiagency recommendations and incentives to increase climate-friendly on-farm compost production and use, including compost application on grasslands and priority rangeland for improved vegetation and carbon storage. The bill would require the recommendations to be consistent with specified publications, standards, and strategies, including the reduction of at least 5,000,000 metric tons of greenhouse gas emissions in the state annually.
This bill would require the Secretary of the Natural Resources Agency to use best available science, mapping, and land management planning tools to support prioritization, siting, and deployment of soil amendment strategies to maximize climate benefits. The bill would require the Natural Resources Agency to publish, and annually update, the nature-based climate strategy for compost on its internet website.
Existing law, the California Integrated Waste Management Act of 1989, administered by the Department of Resources Recycling and Recovery, establishes an integrated waste management program. Existing law requires each city, county, and regional agency, if any, to develop a source reduction and recycling element, household hazardous waste element, and nondisposal facility element of an integrated waste management plan. The act requires the source reduction and recycling element to divert from disposal 50% of all solid waste subject to the element through source reduction, recycling, and composting activities, with specified exceptions. Existing law requires each jurisdiction to submit an annual report to the department summarizing the jurisdiction’s progress in reducing solid and household hazardous waste. Existing law requires the annual report to, among others, identify locations for new or expanded organic waste recycling facilities capable of safely meeting the additional organic waste recycling facility capacity need identified in the annual report.
This bill would, on and after August 1, 2027, clarify that the locations for new or expanded waste recycling facilities include, but are not limited to, a medium compostable material handling facility or operation and a small compostable material handling facility or operation, as defined. To the extent the bill would require a local jurisdiction to include additional information in its annual report, the 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, if the Commission on State Mandates determines that the bill contains costs mandated by the state, reimbursement for those costs shall be made pursuant to the statutory provisions noted above.

Vote: MAJORITY Appropriation: NO Fiscal Committee: YES Local Program: ~~YES~~NO

The people of the State of California do enact as follows:

SECTION 1.

Section 38561.5 of the Health and Safety Code is amended to read:

38561.5.

(a) For purposes of this section, the following definitions apply:

(1) “Natural carbon sequestration” means actions that are undertaken on natural and working lands to remove and provide storage of atmospheric greenhouse gases in vegetation and soils. This shall include preservation, conservation, restoration, and sustainable management of these lands, which may include compost application, cover crops, hedgerows, planned grazing, urban forestry, riparian restoration, restoration of tidal flows to wetlands, and other forms of wetland restoration, among other relevant actions.

(2) “Natural lands” has the same meaning as set forth in paragraph (2) of subdivision (d) of Section 9001.5 of the Public Resources Code.

(3) “Nature-based climate solutions” means activities, such as restoration, conservation, and land management actions, that increase net carbon sequestration or reduce greenhouse gas emissions in natural and working lands.

(4) “Vulnerable communities” has the same meaning as set forth in subdivision (d) of Section 71340 of the Public Resources Code.

(5) “Working lands” has the same meaning as set forth in paragraph (1) of subdivision (d) of Section 9001.5 of the Public Resources Code.

(b) (1) On or before January 1, 2024, the Natural Resources Agency, in collaboration with the state board, the California Environmental Protection Agency, the Department of Food and Agriculture, the expert advisory committee established pursuant to subdivision (c), and other relevant state agencies, shall determine an ambitious range of targets for natural carbon sequestration, and for nature-based climate solutions, that reduce greenhouse gas emissions for 2030, 2038, and 2045 to support state goals to achieve carbon neutrality and foster climate adaptation and resilience. These targets shall be integrated into the scoping plan prepared pursuant to Section 38561 and other state policies.

(2) Projects and actions developed to achieve the targets established pursuant to paragraph (1) shall support the state’s efforts to achieve carbon neutrality, take into account climate impacts, increase resilience to climate change impacts, reduce greenhouse gas emissions, and enhance carbon sequestration in a manner that maximizes ecological health and biodiversity, and complements other climate and resources goals.

(3) The state board shall ensure that all emissions reductions from projects and actions developed to achieve the targets established pursuant to paragraph (1) shall be accounted for in a manner that does not result in double counting of emissions reductions, and that all greenhouse gas emissions reductions and removals used for any market-based compliance mechanism are in addition to any reductions and removals that would otherwise occur.

(4) On or before January 1, 2025, the Natural Resources Agency, in consultation with the state board, the California Environmental Protection Agency, and the Department of Food and Agriculture, shall review and update the Natural and Working Lands Climate Smart Strategy established pursuant to Section 39740.2 to achieve the targets established pursuant to paragraph (1).

(5) The review and update pursuant to paragraph (4) shall include all of the following:

(A) Descriptions of the actions and projects undertaken on natural and working lands to date.

(B) Quantified progress on emissions reductions, natural carbon sequestration, and cobenefits.

(C) A description of how the relevant agencies calculated emissions reductions, natural carbon sequestration, and cobenefits.

(D) A summary of the benefits to low-income communities, disadvantaged communities, vulnerable communities, disadvantaged farmers, and Native American tribes.

(E) An evaluation of the efficacy of the priority nature-based solutions, pathways, and priority actions for greenhouse gas reductions, climate resilience, and climate change adaptation.

(F) Identification and description of any barriers to achieving the range of targets pursuant to paragraph (1).

(G) Recommendations to address the barriers identified in subparagraph (F) to achieve the range of targets pursuant to paragraph (1).

(H) Recommendations from the expert advisory committee established pursuant to subdivision (c).

(c) The Natural Resources Agency and the state board shall jointly establish an expert advisory committee that is composed of university researchers, technical assistance providers, practitioners and other experts in the field of climate ~~change~~ change, soil carbon sequestration, and natural and working lands science and management, and Indigenous and environmental justice representatives, to inform and review modeling and analyses for natural and working lands, to advise state agencies on implementation strategies and standardized accounting, and to provide recommendations on addressing barriers to efficient implementation of this section.

(d) No later than January 1, 2025, the state board shall develop standard methods for state agencies to consistently track greenhouse gas emissions and reductions, carbon sequestration, and, where feasible and in consultation with the Natural Resources Agency and the Department of Food and Agriculture, additional benefits from natural and working lands over time. In estimating and tracking greenhouse gas emissions and reductions and carbon sequestration from natural and working lands, the state board shall take into account, where feasible, both of the following:

(1) Greenhouse gas emissions and reductions of carbon dioxide, methane, and nitrous oxide related to natural and working lands.

(2) Potential impacts of climate change, including, but not limited to, increased fire risk, warming temperatures, and decreasing precipitation, on the ability to reduce greenhouse gas emissions and sequester carbon from natural and working lands.

(e) On or before January 1, 2025, and every two years thereafter, the Natural Resources Agency shall publish data on its internet website on progress made in achieving the targets established pursuant to paragraph (1) of subdivision (b), including on state expenditures made to implement these targets.

SEC. 2.

Section 38561.9 is added to the Health and Safety Code, to read:

38561.9.
(a) This section shall be known, and may be cited, as the Climate-smart Organics Management for Protecting Our Soil and Terrain (COMPOST) Act of 2026.
(b) It is the intent of the Legislature in enacting this section to coordinate state terrestrial conservation and restoration policies with organic waste diversion policies to promote public and private land management activities to reduce net greenhouse gas emissions and improve soil health and carbon sequestration through the application of composted organic materials on the state’s natural and working lands.
(c) (1) On or before January 1, 2028, the Natural Resources Agency, in collaboration with the Department of Food and Agriculture, the state board, the California Environmental Protection Agency, the Department of Resources Recycling and Recovery, the expert advisory committee established pursuant to subdivision (c) of Section 38561.5, and other relevant state agencies, including the Wildlife Conservation Board and the Department of Conservation, shall develop an integrated nature-based climate strategy to link waste diversion goals with soil health practices on natural and working lands. The strategy shall include multiagency recommendations and incentives to increase climate-friendly on-farm compost production and use, including compost application on grasslands and priority rangeland for improved vegetation and carbon storage.
(2) The recommendations required pursuant to paragraph (1) shall, to the extent applicable, be consistent with all of the following:
(A) The targets for natural carbon sequestration and nature-based solutions for natural and working lands report issued pursuant to subdivision (b) of Section 38561.5.
(B) The Natural Resources Agency’s Natural and Working Lands Climate Smart Strategy established pursuant to Section 39740.2.
(C) The Department of Food and Agriculture’s Climate Resilience Strategy for California Agriculture and the Healthy Soils Program.
(D) Reduction of at least 5,000,000 metric tons of greenhouse gas emissions in the state annually.
(E) The report entitled “Pathways to 30x30 California: Accelerating Conservation of California’s Nature” that was issued by the Natural Resources Agency on April 22, 2022.
(F) The scoping plan prepared pursuant to Section 38561.
(G) The Department of Resources Recycling and Recovery’s pathogen reduction standards contained in Section 17868.3 of Title 14 of the California Code of Regulations.
(d) The Secretary of the Natural Resources Agency shall use best available science, mapping, and land management planning tools to support prioritization, siting, and deployment of soil amendment strategies to maximize climate benefits.
(e) The Natural Resources Agency shall, on or before January 1, 2028, publish the nature-based climate strategy for compost on its internet website and shall publish annual updates on implementation progress on its internet website.
(f) For purposes of this section, the following definitions apply:
(1) “Natural carbon sequestration” has the same meaning as set forth in Section 38561.5.
(2) “Natural lands” has the same meaning as set forth in Section 9001.5 of the Public Resources Code.
(3) “Working lands” has the same meaning as set forth in Section 9001.5 of the Public Resources Code.

SECTION 1.Section 41821.4 of the Public Resources Code is amended to read:
41821.4.
~~(a)A county or regional agency shall include, in the annual report required pursuant to Section 41821, the following information:~~
~~(1)An estimate of the amount of organic waste in cubic yards that will be generated in the county or region over a 15-year period.~~
~~(2)An estimate of the additional organic waste recycling facility capacity in cubic yards that will be needed to process the amount of organic waste identified pursuant to paragraph (1).~~
(3)Areas identified by the county or regional agency as locations for new or expanded organic waste recycling facilities capable of safely meeting the additional organic waste recycling facility capacity need identified pursuant to paragraph (2).
(b)To provide the information pursuant to subdivision (a), the county or regional agency may use existing data regarding its diversion programs and is not required to perform additional waste characterization studies.
~~(c)For purposes of this section, “organic waste recycling facility” has the same meaning as defined in paragraph (2) of subdivision (d) of Section 42649.82.~~
~~(d)This section shall become inoperative on August 1, 2027, and, as of January 1, 2028, is repealed.~~
SEC. 2.Section 41821.4 is added to the Public Resources Code, to read:
41821.4.
~~(a)A county or regional agency shall include, in the annual report required pursuant to Section 41821, the following information:~~
~~(1)An estimate of the amount of organic waste in cubic yards that will be generated in the county or region over a 15-year period.~~
~~(2)An estimate of the additional organic waste recycling facility capacity in cubic yards that will be needed to process the amount of organic waste identified pursuant to paragraph (1).~~
(3)Areas identified by the county or regional agency as locations for new or expanded organic waste recycling facilities capable of safely meeting the additional organic waste recycling facility capacity need identified pursuant to paragraph (2), including, but not limited to, a medium compostable material handling facility or operation, as defined by Section 42656, and a small compostable material handling facility or operation, as defined by Section 42656.
(b)To provide the information pursuant to subdivision (a), the county or regional agency may use existing data regarding its diversion programs and is not required to perform additional waste characterization studies.
~~(c)For purposes of this section, “organic waste recycling facility” has the same meaning as defined in paragraph (2) of subdivision (d) of Section 42649.82.~~
~~(d)This section shall become operative on August 1, 2027.~~
SEC. 3.
If the Commission on State Mandates determines that this act contains costs mandated by the state, reimbursement to local agencies and school districts for those costs shall be made pursuant to Part 7 (commencing with Section 17500) of Division 4 of Title 2 of the Government Code.

Text of AB 2112 as amended, from the official record. Connect Plus keeps every version and highlights what changed.Compare versions