AB 643 directs the California Department of Resources Recycling and Recovery (CalRecycle), working with the State Air Resources Board, to adopt regulations to meet the state’s 2020 and 2025 organic waste reduction goals. The bill sets program guardrails: it must include edible‑food recovery requirements (a 20% recovery goal for food currently being disposed), allow CalRecycle to require local jurisdictions to impose requirements on generators, and permit phased compliance schedules and penalties tied to procurement targets.
Beyond targets and enforcement, the bill expands what jurisdictions may count toward procurement—small‑scale composting, certain mulches, vermicompost, and investments in community composting can all count under specified limits. It also creates a formal path for notifications of intent to comply and temporary penalty relief for jurisdictions that disclose ongoing violations and submit corrective plans, while extending rural exemptions from some collection and procurement rules through January 1, 2037 with a renewal process thereafter.
At a Glance
What It Does
The bill requires CalRecycle to adopt implementing regulations that may force local jurisdictions to impose generator requirements and allows both local and state penalties for noncompliance. It defines detailed procurement accounting rules—what materials and expenditures can be counted toward recovered organic waste product procurement targets—and authorizes phased schedules and waiver processes for jurisdictions.
Who It Affects
The regulations will touch city and county solid‑waste programs, local procurement officers, community composting operators, commercial food generators, and facilities that process organics (composters, vermicomposters, mulch operations). CalRecycle and the State Air Resources Board will carry enforcement and regulatory design responsibilities.
Why It Matters
AB 643 moves procurement and counting rules from guidance into binding regulation, changing how jurisdictions satisfy organic procurement obligations and creating a clearer but more complex compliance landscape. The bill also locks in alternative counting and crediting options that can materially alter procurement plans and budgets for jurisdictions and local composting ecosystems.
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What This Bill Actually Does
AB 643 tells CalRecycle to write the rulebook for meeting California’s organic waste reduction goals established elsewhere in state law. Instead of defining a single landfill disposal limit, the statute directs the department to build a regulatory framework that mixes direct requirements (including the power to make local jurisdictions regulate generators), phased timelines, and penalties that can be imposed at either the local or state level.
The bill also requires specific attention to edible‑food recovery, aiming for a program that recovers at least 20 percent of edible food currently thrown away by 2025, and asks CalRecycle to look for ways to ensure recovered food benefits local communities and, where suitable, animal feed operations.
Practically speaking, the bill creates a menu of procurement credit options. Local jurisdictions may count compost and vermicompost from small operations, mulch from tree trimming used locally, mushroom compost, and edible food recovered from commercial generators toward their recovered organic waste procurement targets—subject to recordkeeping, health and contamination limits, and local ordinances.
The bill allows jurisdictions to credit direct expenditures on community composting, equipment used only for applying compost/mulch, and distribution infrastructure toward procurement targets up to a capped percentage, with a provisional conversion factor ($21.38 per ton) until CalRecycle adopts final regulations.AB 643 builds in flexibility mechanisms: jurisdictions can submit a five‑year procurement option instead of annual targets, run local waste characterization studies to set local per‑capita targets, and request extended rural exemptions. Jurisdictions that disclosed continuing violations during calendar 2022 and filed department‑approved notifications could receive penalty relief for that year and enter corrective action plans; penalties may begin accruing in 2023 if violations persist.
The law also directs CalRecycle to amend procurement definitions by January 1, 2027 to allow pipeline biomethane produced exclusively from organic waste diverted from landfills—if consistent with Public Utilities Code criteria—to count toward procurement.
The Five Things You Need to Know
The bill sets a staged procurement compliance schedule for recovered organic waste products with procurement thresholds of 30% (on/after Jan 1, 2023), 65% (on/after Jan 1, 2024), and 100% (on/after Jan 1, 2025) of a jurisdiction’s procurement target before administrative penalties apply.
Jurisdictions granted a rural exemption as of Jan 1, 2024 remain exempt from specified organic collection and procurement requirements until Jan 1, 2037, and CalRecycle must create a renewal process for five‑year extensions thereafter.
CalRecycle may allow jurisdictions to count direct expenditures—like building community composting operations and buying application equipment—toward up to 10% of their procurement target through Dec 31, 2035, using a department conversion factor; until regulations are adopted the provisional conversion is $21.38 per ton.
By Jan 1, 2027 CalRecycle must amend regulations to allow pipeline biomethane converted exclusively from organic waste diverted from landfills (and consistent with Public Utilities Code Article 10 requirements) to be an eligible recovered organic waste product.
Small operations are explicitly eligible: jurisdictions may count vermicompost, small footprint compost operations (≤100 cubic yards and 750 sq ft onsite), and mushroom compost toward procurement targets if the jurisdiction adopts enforceable ordinances and the products meet pathogen, metals, and contamination limits.
Section-by-Section Breakdown
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Regulatory authority, local obligations, and no landfill numeric limit
These paragraphs give CalRecycle the core authority to adopt regulations to meet the state's organic waste reduction goals and explicitly allow the department to require local jurisdictions to put obligations on generators and to authorize local penalties. Importantly, the bill bars the department from setting numeric disposal limits for individual landfills, signaling the policy will focus on procurement and diversion levers rather than per‑landfill caps.
Edible‑food recovery target and local benefit evaluation
The statute requires regulations to include measures designed to achieve recovery of at least 20% of edible food currently disposed by 2025 and tasks CalRecycle with evaluating how programs can maximize local benefits. That creates a regulatory mandate to design recovery programs with distribution, suitability for local needs, and possible animal‑feed pathways in mind—issues that will influence contract terms, reporting, and health‑safety protocols.
Penalty schedule, 2022 notification process, and conditional waivers
CalRecycle may include penalties up to the cap in Section 41850, but the bill specifies a discrete procurement penalty schedule tied to procurement targets and builds a formal ‘notification of intent to comply’ pathway. Jurisdictions reporting 2022 violations could receive penalty relief if they submitted required documentation and implemented corrective actions on a department‑approved schedule. The department has defined timelines for responses, potential revocation of approvals, and authority to substitute corrective action plans when issues require more than 180 days to fix.
Population exclusions for targets and rural exemption extension
When CalRecycle calculates procurement targets, it must exclude residents covered by low population or elevation waivers from a jurisdiction’s population. The bill preserves the rural exemption—jurisdictions with a rural exemption as of Jan 1, 2024 remain exempt from specified collection and procurement requirements until Jan 1, 2037—and requires CalRecycle to establish a process to renew those exemptions for up to five‑year terms.
What counts toward procurement: small compost, mulch, edible food, and requirements
These provisions enumerate specific items jurisdictions may count: vermicompost, small onsite compost operations under tight size limits, mushroom compost, mulch from tree trimming used locally, and edible food from commercial food generators. Counting generally requires an enforceable local ordinance, recordkeeping, verification, and adherence to pathogen/metals/contamination standards equivalent to larger composting facilities. The bill also sets conversion rules for edible food tonnage equivalence.
Direct expenditure credits and provisional conversion factor
CalRecycle may let jurisdictions count certain direct expenditures—investments in community composting, equipment dedicated to applying compost or mulch, and development of distribution sites—toward procurement targets through Dec 31, 2035, with those expenditures capped at 10% of a jurisdiction’s total target. The department can set conversion factors by regulation; until then, the bill specifies a provisional rate of $21.38 per ton.
Local waste studies, five‑year procurement option, and emphasis on local application
The bill allows jurisdictions to use a local waste characterization study to set a local per‑capita procurement target for up to five years if the study meets detailed criteria and is submitted to CalRecycle. Beginning Jan 1, 2027, jurisdictions can opt to meet a five‑year procurement requirement (annual target × 5) provided they notify CalRecycle and meet timing rules. CalRecycle may also consider conversion factors to prioritize locally applied compost.
Emergency regulations, financing information, and declaration on free provision
AB 643 authorizes CalRecycle to adopt emergency regulations to implement 2021 statutory changes and directs that emergency regs be treated as necessary for public welfare through Jan 1, 2024. The department may share financing information with solid‑waste facility owners/operators about funding to improve methane capture. Finally, the bill reiterates that providing compost or mulch free or via incentives is a public purpose and not an unconstitutional gift of public funds, which clarifies procurement and distribution strategies.
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Explore Environment in Codify Search →Who Benefits and Who Bears the Cost
Every bill creates winners and losers. Here's who stands to gain and who bears the cost.
Who Benefits
- Local jurisdictions with rural conditions: The rural exemption extension through 2037 reduces immediate compliance pressure and gives rural counties more time to build capacity and finance infrastructure.
- Community composting operators and small‑scale processors: The bill explicitly allows vermicompost, small footprint compost, and mushroom compost to count toward procurement, creating new market demand and potential local contracting opportunities.
- Food recovery organizations and food banks: The law elevates edible‑food recovery to a programmatic target and directs CalRecycle to maximize local benefits, which should steer resources and program design toward organizations that redistribute edible food.
- Jurisdictions investing in infrastructure: Local governments that fund community composting, distribution sites, or application equipment can count those expenditures (subject to limits) toward procurement targets, turning capital spending into compliance credit.
Who Bears the Cost
- Local jurisdictions generally: Cities and counties must design procurement programs, track new categories of eligible materials, adopt enforceable ordinances for counting rules, and may face penalties if targets are missed, increasing administrative and program costs.
- CalRecycle and regulatory agencies: The department must write complex regulations, run the notification/approval process, set conversion factors, create renewal processes for rural exemptions, and enforce penalties—tasks that require staffing and technical capacity.
- Commercial food generators and haulers: Where local jurisdictions are authorized to require generator obligations, businesses may face new collection, handling, or donation requirements and related contractual changes with haulers and food‑service vendors.
- Small compost operators (compliance costs): While eligible to be counted, small processors must meet pathogen, metals, and contamination limits and verification requirements that may require investment in QA/QC, testing, and recordkeeping.
Key Issues
The Core Tension
The bill pits ambitious, measurable procurement and recovery goals against uneven local capacity: it aims to force action (penalties, counting rules) while also carving many credits, exemptions, and provisional valuation methods to avoid imposing impossible short‑term burdens—leaving CalRecycle to decide how strict to be in converting investments and small‑scale outputs into compliance, a choice that will determine whether the law drives real diversion and soil benefits or simply reshuffles accounting.
AB 643 creates a dense set of counting rules and temporary accommodations intended to balance ambition with practicality, but those very accommodations create implementation headaches. Allowing direct expenditures and small‑scale composting to count toward targets reduces upfront barriers for jurisdictions, but converts budgetary choices into regulatory science questions: what conversion factor fairly equates a dollar of equipment or a cubic yard of small‑scale compost with a ton of procured recovered organic waste?
The bill gives CalRecycle authority to set those conversion factors by regulation, leaving a potentially contentious rulemaking over valuation that will determine whether investments meaningfully move the needle or merely provide cosmetic compliance.
The retroactive and transitionary elements—penalty relief for 2022 disclosures, staged procurement thresholds with effective dates in 2023–2025, and emergency regulation language tied to a 2021 statute—create legal and administrative complexity. Jurisdictions that relied on prior guidance will need to reconcile historic noncompliance disclosures with new counting rules and potential penalty accruals.
The inclusion of pipeline biomethane as a procurement‑eligible product raises cross‑agency coordination questions with the Public Utilities Commission about attributes, measurement, and whether biomethane procurement meaningfully advances the same local soil and carbon benefits as compost application. Finally, the exemptions and multiple pathways for compliance open opportunities for creative compliance strategies (e.g., heavy reliance on mulch credits or capital credits) that could undermine the bill’s diversion and soil‑health objectives unless CalRecycle crafts tight verification and use restrictions.
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