What does California SB 343 actually prohibit?

Instrument, scope and legal effect

Senate Bill 343 amended California’s Public Resources Code to address environmental marketing claims implying that an item is recyclable. Its central rule is negative, not prescriptive: a person may not sell, distribute or import into California a product or packaging bearing the chasing-arrows symbol, or another statement or symbol indicating recyclability, unless the item qualifies under section 42355.51. The restriction is not confined to the word “recyclable”. Words, graphics and disposal directions are assessed according to the message the package as a whole conveys.

The statute separates resin identification from recyclability. Public Resources Code section 18015 requires the resin identification code to be displayed within a triangle, and bars placing the code inside chasing arrows unless the container meets the criteria in section 42355.51(d). The effect is that a resin code presented in a solid equilateral triangle performs the identification function required by law, whereas a chasing-arrows presentation of the same numeral operates as a recyclability claim and must independently satisfy the eligibility test. Marks required by another federal or state law receive specified treatment, and the legislation contains product-specific and programme-based alternatives. Those exceptions turn on documented conditions and do not follow from the mere presence of a code or from industry convention.

The principal eligibility test

The principal route requires evidence at three stages. The material type and form must be accepted for collection by recycling programmes serving at least 60 per cent of California's population. It must also be sorted into defined streams by large-volume transfer or processing facilities serving at least 60 per cent of programmes statewide and sent to a reclaimer in a manner consistent with applicable export rules. Finally, the product must not contain features, components or substances that prevent recycling or cause the item to be rejected under the statutory criteria.

CalRecycle's material characterization study supplies the statewide evidence for that analysis. The agency published its final findings on 4 April 2025. On 8 August 2025 it published a revision designated "Revised Table 2", addressing gable-top cartons and aseptic containers under codes X02 and X03. The study is not a product approval list. CalRecycle states that it does not decide whether a particular package may lawfully carry a claim and does not enforce individual marketing representations. The material, form, components and design of the specific package must therefore be mapped against the statutory criteria, and the supporting evidence retained, by the party making the representation.

Alternative routes exist. Section 42355.51(d)(4) provides a route for a material type and form achieving a recycling rate of 75 per cent, and further routes apply to products collected through qualifying non-curbside programmes and to items managed under other programmes identified by statute. These are narrow evidence-based alternatives rather than a general permission to claim recyclability wherever a take-back point exists. A store-drop-off or mail-back statement accordingly falls to be reviewed against the precise conditions of the programme relied on and against the overall consumer impression created by the package.

Dates, obligated parties and enforcement

The eighteen-month implementation period measured from CalRecycle's final findings of 4 April 2025 ends on 4 October 2026. The restriction applies by manufacture date rather than by date of retail sale, with the consequence that existing stock manufactured before that date does not become non-compliant merely by remaining on shelves afterwards. Establishing the applicable date depends on production and inventory records, particularly where old and new artwork coexist in the same channel.

The statutory prohibition reaches persons that manufacture, sell, distribute or import covered products into California. In practice, brand owners, private-label retailers, importers, packaging converters and distributors may each control a different part of the artwork or of the underlying evidence. Contractual allocation of the work does not displace the statutory exposure of a party within the prohibition's reach.

As to enforcement, the Attorney General's authority is presently restrained by the preliminary injunction described in the status note and examined in the injunction article. The position of local public prosecutors is best stated by reference to the route by which a claim would be brought. A recyclability representation inconsistent with section 42355.51 may be pursued as an unlawful business practice under the Unfair Competition Law and as a misleading statement under the False Advertising Law, both in the Business and Professions Code, and those statutes confer enforcement authority on district attorneys and specified city attorneys in addition to the Attorney General. Attributing local prosecutorial authority to the Public Resources Code itself is less well founded, and that attribution is flagged in the note on sources below. CalRecycle's function under the statute is the production of the characterization evidence; it is not the exclusive enforcement authority, nor does its research role make it the arbiter of individual claims.

Interaction with other regimes

SB 343 governs what may be communicated. It does not determine producer fees, does not satisfy California's packaging extended producer responsibility duties under SB 54, and does not establish that a package will be collected in any particular community. A package may be assessed and categorised within the SB 54 system and nonetheless remain ineligible for an SB 343 claim; the relationship between the two statutes is examined in the article on their interaction. Compostable products are subject to separate California truth-in-labelling rules. Federal and private labelling systems do not create a California safe harbour unless the statute expressly recognises them.

Primary sources

• California Public Resources Code § 42355.51 — Open source
• California Public Resources Code §§ 42355–42358.5
• California Public Resources Code § 18015 (resin identification code display)
• California Business and Professions Code §§ 17200 et seq. (Unfair Competition Law) and §§ 17500 et seq. (False Advertising Law)
• SB 343 (2021–2022 Regular Session), enrolled text and legislative history — Open source
• CalRecycle, Accurate Recycling Labels — Open source
• CalRecycle, SB 343 frequently asked questions
• CalRecycle bulletin publishing "Revised Table 2" (gable-top cartons and aseptic containers, codes X02/X03), 8 August 2025 — Open source
• California League of Food Producers et al. v. Bonta, No. 3:26-cv-01675-WQH-JAC (S.D. Cal.), preliminary injunction of 14 July 2026

Note on sources and verification

The publication of CalRecycle's final material characterization study on 4 April 2025, the resulting manufacture-date trigger of 4 October 2026, the operation of that trigger by date of manufacture rather than date of sale, the 60 per cent collection and sorting thresholds, the 75 per cent recycling-rate route under section 42355.51(d)(4), and the requirements of section 18015 as to display of the resin code within a triangle were confirmed for this article. The revision to the characterization data is the "Revised Table 2" publication of 8 August 2025 covering gable-top cartons and aseptic containers under codes X02 and X03. An earlier draft of this page referred to a June 2026 data update; no such update was located, and the reference has been removed.

The attribution of enforcement authority is qualified. A draft of this page stated that local public prosecutors and the Attorney General hold enforcement authority "under the Public Resources Code". That attribution could not be substantiated in that form. The better-supported route for local prosecutors is the Unfair Competition Law and False Advertising Law in the Business and Professions Code, under which a violation of another statute may be pursued as an unlawful or misleading business practice. The text above has been amended accordingly, and the point is recorded here as a correction rather than presented as settled.

The characterisation of the preliminary injunction derives from the reported particulars of the order and from the legal analyses cited in the injunction article rather than from the text of the order itself, which was not retrieved for this article. URLs to leginfo.legislature.ca.gov and calrecycle.ca.gov are constructed from the citation and the agency's page titles; they could not be re-fetched on 19 August 2026 owing to network restrictions applying to this session, and the citations rather than the links should be treated as the authority.

Monitoring points are any further revision to the characterization study or its tables, which would alter the evidence base for the collection and sorting thresholds; the progress of the litigation, including any narrowing, dissolution, stay or appeal of the preliminary injunction, and any final judgment on the vagueness and commercial-speech grounds; any enforcement action commenced by a district attorney or city attorney notwithstanding the injunction; and the arrival of the 4 October 2026 manufacture date, after which the compliance status of packaging turns on production records.

Last verified: 19 August 2026.