United States · Chemicals

California Proposition 65 Warning in the United States

A practical guide to California Proposition 65 Warning for chemicals sold in the United States: who it applies to, what to prepare, and the mistakes that cause rejection.

Who needs it
Consumer products sold in California that expose users to listed chemicals; Food, supplements, and cosmetics containing listed substances
Authority
California Office of Environmental Health Hazard Assessment (OEHHA)
Legal basis
California Safe Drinking Water and Toxic Enforcement Act of 1986
Local representative
No representative is required; the seller or manufacturer is responsible
Timeline
Warnings must be in place before the product is sold in California
Cost
Exposure assessment and labelling costs vary by product
If you do not comply
Civil penalties per violation per day, plus attorney fees

Who needs this

Documents you need

Compliance checklist

Tick each item as you collect it. Saved in this browser only.

How to comply

  1. Screen the product against the Proposition 65 list
  2. Assess the exposure route and level
  3. Apply the correct short-form or long-form warning
  4. Keep the assessment on file

Brief for your lab or agent

Copy this into an email, then edit the product and channel.

Request: California Proposition 65 Warning — United States
Product category: Chemicals
Authority: California Office of Environmental Health Hazard Assessment (OEHHA)
Legal basis: California Safe Drinking Water and Toxic Enforcement Act of 1986

Documents we already have:
  1. Chemical screening or exposure assessment
  2. Warning label artwork and placement plan
  3. Supplier declarations for components and materials

Questions:
  1. Does our product fall under California Proposition 65 Warning in the United States?
  2. Which test standards or evidence do you accept?
  3. What is the current fee and lead time?
  4. Is a local representative required, and can you act as one?

Cost and timeline

Warnings must be in place before the product is sold in California.

Exposure assessment and labelling costs vary by product.

Common rejection reasons

Registration, notification, or certification is not the same as approval. Keep the technical file current and make sure the label, listing, and submitted data match.

Official sources

FAQ

Is Proposition 65 a national requirement?

No. It is California law, but online sellers who ship to California are generally covered.

Can a supplier warning be reused?

Only if the product, materials, and exposure assumptions are the same.

How long does California Proposition 65 Warning take?

Warnings must be in place before the product is sold in California.

How much does California Proposition 65 Warning cost?

Exposure assessment and labelling costs vary by product.

What happens if I sell without it?

Civil penalties per violation per day, plus attorney fees.

Who regulates California Proposition 65 Warning in the United States?

California Office of Environmental Health Hazard Assessment (OEHHA).

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