California Prop 65 Warning Evidence Check for Cross-Border Sellers
California Proposition 65 requires clear and reasonable warnings in certain exposure scenarios. Cross-border sellers should first review product materials, listed chemicals, sales territory, platform display fields and evidence files before choosing warning wording.
Confirm Whether the Product Can Reach California
If a product is sold through Amazon, an independent website or a distributor to California consumers, Prop 65 applicability should be assessed. Sellers should check shipping settings, warehouse routing, product pages and checkout warning placement.
The OEHHA list covers chemicals associated with cancer, reproductive toxicity or both. Suppliers and test evidence should be reviewed for high-attention substances such as lead, cadmium, phthalates and BPA where relevant.
Short-Form Warnings Still Need Chemical-Specific Review
California safe-harbor warning rules continue to evolve. When using short-form warning language, sellers should verify the current requirements, transition period and chemical-name rules instead of relying on old generic wording.
Warning text should match the actual chemical, endpoint and selling context. Label, package, product page, checkout flow and platform fields should not contradict each other.
Preserve Evidence After a 60-Day Notice
Prop 65 can be enforced through private notices. After receiving a notice, sellers should preserve product samples, listing screenshots, supplier files, test reports, sales-territory records and warning-display evidence before deciding on retesting, warning changes or legal response.
Do not promise that a product is risk-free before reviewing its material and sales boundary. A practical program starts with high-risk material screening, supplier declaration updates and periodic platform field review.
How Greenark Can Help
Greenark (Shenzhen) Certification Co., Ltd. can help cross-border sellers review applicability, testing scope, supplier declarations, platform evidence files and claim wording. The final testing path, lead time and result should be assessed against the actual product, target market, platform request and laboratory review.
