# Legal challenge to California packaging law

> Live situation record from CLSTR: https://clstr.news/situations/legal-challenge-to-california-packaging-law
> Updated: 2026-08-21T00:00:00.000Z. Sources: 2. Developments: 2.

A 17-state coalition, led by the National Association of Wholesaler-Distributors, has filed a motion for a preliminary injunction to block the enforcement of California’s Plastic Pollution Prevention and Packaging Producer Responsibility Act (SB 54). 

The plaintiffs argue the law is unconstitutionally vague under the Due Process Clause, claiming it imposes sweeping obligations without clearly defining terms like “covered material” and “recyclable.” The coalition also contends that businesses face significant compliance costs for requirements that regulators have not yet finalized. This legal challenge follows similar successful efforts to block extended producer responsibility programs in Oregon and previous judicial blocks on California’s recycling labeling laws.

## Timeline

### 2026-08-21: Coalition seeks to block California's SB 54 packaging law

A 17-state coalition is seeking a preliminary injunction to block California’s SB 54 packaging law, arguing the act is unconstitutionally vague and imposes undefined compliance costs on businesses.

2 sources. https://clstr.news/cluster/coalition-seeks-to-block-californias-sb-54-packaging-law

### 2026-08-11: California officials oppose AB 1776 antitrust rewrite

California’s Department of Finance and CalChamber oppose AB 1776, an antitrust rewrite that would expand single-firm conduct enforcement and create a private right of action.

2 sources. https://clstr.news/cluster/california-officials-oppose-ab-1776-antitrust-rewrite

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Cite as: Legal challenge to California packaging law. CLSTR, https://clstr.news/situations/legal-challenge-to-california-packaging-law