Table of Contents
Why Suppliers Must Care About Prop 65
If your component is used in a product sold in California, your customers may depend on your chemical data for their Prop 65 risk assessments. Whether you're making capacitors, cables, housings, or solder paste—your transparency is key.
Failure to disclose could result in:
- Lost business from OEMs and assemblers
- Exposure to third-party litigation
- Loss of trust and inclusion in supplier portals
Common Prop 65 Chemicals Found in Components
Even tiny components may cross safe harbor thresholds at the article level.
Are You Responsible for CA Prop 65 Warning Labels?
Suppliers are not required to issue Prop 65 warnings themselves unless they are the manufacturer or seller of the final product. However:
- You must inform downstream customers of the presence of any listed chemical that could result in exposure.
- You should provide usage instructions or restrictions where applicable.
How to Provide Prop 65 Declarations
- Conduct substance screening against the Prop 65 list.
- Use formats such as:
- Material Safety Data Sheets (SDS)
- Full Material Disclosures (FMD)
- Prop 65-specific statements
- Disclose if the substance:
- Is present in the article/material
- May result in consumer or occupational exposure
- Update declarations bi-annually, aligned with OEHHA's list updates.
Building Prop 65 into Supplier Compliance Workflows
Your Prop 65 declaration should be part of a broader supplier compliance packet, alongside:
- RoHS compliance statements
- REACH SVHC disclosures (Article 33)
- FMD files (IPC-1752A, IEC 62474)
- SCIP dossier references
Consistency across regulations increases trust and saves back-and-forth during audits or product development cycles.
Digitizing Prop 65 Compliance with Acquis
Acquis enables electronics suppliers to automate Prop 65 data readiness:
- Upload and validate FMD + Prop 65 declarations
- Set threshold-based flags for common materials
- Push structured declarations to downstream customers
- Track Prop 65 list changes automatically via OEHHA sync
See How Acquis Works for Suppliers
Stay preferred. Stay compliant. As regulations tighten and OEM expectations rise, electronics suppliers who can prove Prop 65 compliance win more business.