AB 1243 California Assembly · 2025-2026 Regular Session

Polluters Pay Climate Superfund Act of 2025.

Summary
The California Global Warming Solutions Act of 2006, until January 1, 2031, authorizes the State Air Resources Board to adopt a regulation establishing a system of market-based declining aggregate emissions limits for sources or categories of sources that emit greenhouse gases (market-based compliance mechanism) that meets certain requirements. Existing law establishes the Greenhouse Gas Reduction Fund and requires all moneys, except for fines and penalties, collected by the state board from the auction or sales of allowances as a part of a market-based compliance mechanism to be deposited into the fund and requires the Legislature to appropriate moneys in the fund for the purpose of reducing greenhouse gas emissions in the state, as provided. Existing law, the California Climate Crisis Act, declares that it is the policy of the state both to achieve net-zero greenhouse gas emissions as soon as possible, but no later than 2045, and achieve and maintain net-negative greenhouse gas emissions thereafter, and to ensure that by 2045, statewide anthropogenic greenhouse gas emissions are reduced to at least 85% below the 1990 levels. This bill would enact the Polluters Pay Climate Superfund Act of 2025 and would establish the Polluters Pay Climate Superfund Program to be administered by the California Environmental Protection Agency to require fossil fuel polluters to pay their fair share of the damage caused by greenhouse gases released into the atmosphere during the covered period, which the bill would define as the time period between the 1990 and 2024 calendar years, inclusive, resulting from the extraction, production, refining, sale, or combustion of fossil fuels or petroleum products, to relieve a portion of the burden to address cost borne by current and future California taxpayers. The bill would require the agency, within 90 days of the effective date of the act, to determine and publish a list of responsible parties, which the bill would define as an entity with a majority ownership interest in a business engaged in extracting or refining fossil fuels that, during the covered period, did business in the state or otherwise had sufficient contact with the state, and is determined by the agency to be responsible for more than 1,000,000,000 metric tons of covered fossil fuel emissions, as defined, in aggregate globally, during the covered period. This bill would require the agency, within one year of the effective date of the act, to conduct and complete a climate cost study to, among other things, quantify the total damage amount, which the bill would define as all past and future climate harms and damages to the state from January 1, 1990, through December 31, 2045, inclusive. The bill would require the agency to update the climate cost study, not less frequently than every 5 years, through January 1, 2045, as provided. The bill would require the agency, within 60 days of the completion of the climate cost study, to determine and assess, as provided, a cost recovery demand for each responsible party listed, which represents the responsible party's proportionate share of the total damage amount. The bill would require responsible parties to pay their cost recovery demand, as provided. The bill would require the collected cost recovery demands to be deposited in the Polluters Pay Climate Superfund, which the bill would create in the State Treasury. The bill would, upon appropriation by the Legislature, require moneys in the fund be expended for, among other things, qualifying expenditures, which the bill would define to include expenditures for projects and programs to mitigate, adapt, or respond to the damages and costs caused to the state from climate change. The bill would require all interest earned on moneys that have been deposited into the fund to be retained in the fund for use in implementing the program. The bill would require the agency to determine the initial implementation costs for the act, as provided, and would require the agency to assess an amount allocated equitably among responsible parties to cover those costs. This bill would require the Director of Finance, within 45 days of the effective date of the act, to perform an initial assessment of the reasonable and appropriate initial implementation costs that will be incurred by the agency. This bill would declare that it is to take effect immediately as an urgency statute.
Bill status failed 1 of 4 stages cleared
Introduction
Feb 2025
Committee Review
Floor Vote
Governor
Introduced Feb 21, 2025 Last action Feb 2, 2026
Maddy AI version diff · 3 comparisons

What changed between versions

04/07/25 - Amended Assembly 04/10/25 - Amended Assembly · 11 edits · Apr 10, 2025
MAJOR
AB 1243 (Polluters Pay Climate Superfund Act of 2025) received several substantive amendments between April 7 and April 10, 2025. The most significant changes include adding a requirement that all interest earned on fund moneys be retained in the fund, broadening the adjustment provision so responsible parties can seek credit for any fossil fuel extracted by another party (not just refined crude oil), tying the definition of disadvantaged communities to a specific statutory code section, and adding a severability clause protecting remaining fund expenditures if one is struck down. New legislative findings were also added emphasizing that current damage accounting is conservative and that the fees represent only a fraction of actual climate costs.
Scope change
The bill's scope was modestly expanded: emissions attribution now explicitly includes third-party combustion, the adjustment mechanism for responsible parties was broadened beyond crude oil refining to all fossil fuel extraction by other parties, and the climate cost study must now specifically analyze impacts on local and tribal government budgets. The fund's financial structure was strengthened by requiring interest to be retained in the fund.
FISCAL

New Section 71372(c) requires all interest earned on moneys deposited into the fund to be retained in the fund for use in implementing the program, rather than being available for other state purposes.

The fund name was changed from 'Polluters Pay Climate Superfund Fund' to 'Polluters Pay Climate Superfund,' removing the redundant word 'Fund.'

Qualifying expenditures language was changed from 'shall include, but are not limited to' to 'may include, but are not limited to,' and additional categories were added including transportation in emergency response, support for local and tribal government operational continuity during climate events, and maintaining, enhancing, and expanding zero-emission public transit operations to increase ridership.

ELIGIBILITY

Section 71371.5(b) was broadened: a responsible party can now seek an adjustment if any portion of its cost recovery demand is attributable to fossil fuel extracted by another responsible party (previously limited to refining of crude oil extracted by another party).

DEFINITION

The definition of disadvantaged communities in Section 71372.1(a) was changed from 'as defined by the agency' to 'as defined by the agency pursuant to Section 39711 of the Health and Safety Code,' tying it to a specific existing statutory definition.

The responsible party emissions threshold was clarified from 'more than one billion metric tons' to 'more than one billion 1,000,000,000 metric tons,' spelling out the number explicitly.

ENFORCEMENT

New Section 71372.2 adds a severability provision: if a court determines any expenditure from the fund for a project or program is inconsistent with law, funding for remaining projects and programs is severable and unaffected.

SCOPE

The definition of 'covered fossil fuel emissions' was clarified to specify 'total quantity' and to explicitly include emissions 'including by third parties,' making clear that downstream combustion by end users counts toward the responsible party's emissions.

New legislative findings (7), (8), and (9) were added stating that existing damage accounting is significantly undercounted, that the fees represent only a subset of extraordinary climate costs, and that the industry has earned $2.8 billion per day in profits over 50 years while externalizing pollution costs.

New subsection (c) added to Section 2 stating it is the intent of the Legislature for the act, the program, and all funded projects to benefit disadvantaged communities and to do no harm to these communities.

REQUIREMENT

A new paragraph (6) was added to the climate cost study requirements in Section 71371.3(b), requiring an analysis of climate impacts to local and tribal government budgets, including increased costs for infrastructure maintenance, emergency services, natural disaster recovery, and public health.

Floor votes

How they voted

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Full legislative history

Actions timeline

Total actions
13
Key actions
4
Committee
7
Amendments
2
Feb 2, 2026
Lower · Passed
From committee: Filed with the Chief Clerk pursuant to Joint Rule 56.
lower
Apr 29, 2025
Lower · Passed
In committee: Set, first hearing. Hearing canceled at the request of author.
lower
Apr 22, 2025
Lower · Passed
From committee: Do pass and re-refer to Com. on JUD. (Ayes 9. Noes 4.) (April 21). Re-referred to Com. on JUD.
lower
Apr 21, 2025
Committee
Re-referred to Com. on NAT. RES.
lower
Apr 10, 2025
Introduced
From committee chair, with author's amendments: Amend, and re-refer to Com. on NAT. RES. Read second time and amended.
lower
Apr 8, 2025
Committee
Re-referred to Com. on NAT. RES.
lower
Apr 7, 2025
Introduced
From committee chair, with author's amendments: Amend, and re-refer to Com. on NAT. RES. Read second time and amended.
lower
Mar 28, 2025
Committee
Referred to Coms. on NAT. RES. and JUD.
lower
Feb 22, 2025
Lower · Passed
From printer. May be heard in committee March 24.
lower
Feb 21, 2025
Introduced
Introduced. To print.
lower
1 primary · 13 co-sponsors

Sponsors