California HSC §25249.5 · state EPR laws

Proposition 65 & US EPR registrations

Listrar summary

Two very different Californian inventions with the same lesson: US market access increasingly runs through registers. Proposition 65 requires a clear and reasonable warning before knowingly exposing Californians to any of roughly 900 listed chemicals — enforced largely by private plaintiffs armed with 60-day notices. The EPR wave is newer: state packaging laws (California, Oregon, Colorado, Maine, Minnesota) require producers to register with a producer-responsibility organisation, report material data and pay eco-modulated fees — and California's SB 707 extends the model to textiles. No PRO registration, no sale.

Who does it apply to?

Main obligations

Key dates

November 1986
Prop 65 enacted by ballot initiative; warnings since 1988
2018
'Clear and reasonable warning' overhaul takes effect
January 2025
Short-form warning amendments effective; compliance transition to 2028
2025-2027
First packaging-EPR registration and reporting waves: Oregon, Colorado, California
2024 →
California SB 707: first US textile-EPR law phases in

Products in scope

Obligations by actor

Brand / producer
Test or certify against the chemical list; warn where needed; register and report to PROs
Importer / distributor
Verify upstream compliance — liability follows the chain into California
Retailer
Display warnings correctly; platforms increasingly demand proof upstream
Online marketplace
Ensure third-party listings carry required warnings

Documents and evidence to keep

Sanctions and risks

Key articles

Official text

Last verified by Listrar: 14 August 2026

Be on the register at launch.

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