Standard & market guidePROP 65TTS / Product testing

Where it applies

Applies to products sold in California or exposing California consumers. Lead, cadmium, phthalates, nickel and formaldehyde are common concerns, but warning duties depend on the chemical and exposure assessment.

What the evidence needs to show

  • Identify listed chemicals and high-risk materials first
  • A concentration result is not automatically an exposure assessment
  • Warning wording, placement and online display need current-rule review

Build the evidence in this order

  1. Screen materials and supplier declarations
  2. Define analytical tests and exposure assessment
  3. Choose reformulation, substitution or warning
  4. Retain the decision basis and monitor list updates

Common misunderstandings

  • “Not detected” depends on method and reporting limit and must be read with exposure context
  • A warning does not mean government certification that the product is safe or unsafe

Official reference

California OEHHA: Proposition 65 ↗

Confirm product-specific scope and the applicable edition with TTS before making a compliance decision.

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