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California Prop 65 Compliance: An Overview

Proposition 65, also known as the Safe Drinking Water and Toxic Enforcement Act of 1986, protects the public from exposure to toxic chemicals in drinking water, the environment, and purchased products. Every year, California updates its list of chemicals that are toxic to reproductive health or known to cause cancer and birth defects. Businesses operating or selling in California must notify the public about the presence of these chemicals in their products.

Our Customers

Assent has helped hundreds of companies. We’re proud to work with the following organizations.

REACH compliance expert

The Risks of Prop 65 Non-Compliance

Conforming to Prop 65’s complex labeling requirements takes time and resources — including internal resources that must dedicate time to data collection rather than the jobs they were hired to do.

The business stakes are also high, as non-compliance often results in lawsuits, reputational damage, and delays in material sourcing due to supply chain disruptions.

Learn more about recent enforcement actions that demonstrate why proactive compliance is a business must.

Recent Enforcements

Grow Better With Assent’s Prop 65 Solution

Our solution is built specifically for the world’s most complex manufacturing supply chains. It simplifies Proposition 65 compliance by providing standardized, validated, usable data.

Strengthen Compliance

Compliance with labeling requirements reduces the risk of litigation.

Maximize Resources

Reassign internal resources away from Prop 65 data collection toward revenue-boosting activities.

Access Data With Confidence

Automate data acquisition, validation, and management from a centralized, workflow-driven cloud interface.

Avoid Costly Litigation

Build a deep, documented Prop 65 program, because “bounty hunter” law firms will be looking to turn your non-compliance into their profit.

Keep Up With Regulatory Changes

Our subject matter experts are leaders in their field and drive focus on materiality for your program. They’ll help you stay ahead of changes to Prop 65.

See why our platform is the leading solution for Prop 65 Compliance

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Case Study

Tap Into Expertise & Cut Costs: Kaba Ilco

As the largest key blank manufacturer in the U.S., Kaba Ilco is subject to a complex regulatory environment, including Prop 65. They needed a solution that could help them cost-effectively manage their workload while giving them access to subject matter experts.

Learn how Assent helped them save overhead costs, reduce labor expenses, and access the expertise they needed so they could sell into strategic markets.

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Prop 65 Solution Capabilities

Advanced Data Management

Assent’s robust data collection and management capabilities can handle large amounts of information, so you’ll always have the data needed to maintain Prop 65 compliance and protect your brand’s reputation. You’ll also boost supplier engagement through streamlined data collection, training, and support in local languages.

Detailed Reporting

Our solution offers detailed dashboards and reports to help identify high-risk articles and eliminate surprises. You can also organize parts data in one central database, minimizing supplier fatigue by limiting duplicate part collection.

Automated Supply Chain Communications

Stay on top of the latest substance additions to the Prop 65 list without breaking a sweat. Assent’s Proposition 65 solution automatically collects data on new substances as they come into scope.

Access to Validated Data

Leverage Assent’s database of regulated substances to assess risk. This can help you enhance and scale your Prop 65 program with complete and validated data, while saving money on data acquisition through automated declaration processes.

Efficient Workflows

Achieving compliance requires company-wide access to data. Assent’s platform streamlines and automates data processes across the company and integrates compliance data with product design to reduce risk.


Respond to Prop 65 data requests quickly and efficiently using industry-standard formats. Historical reporting is available at the touch of a button, saving time and resources as well as safeguarding market access.

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Why Assent

The Assent Advantage

As a complete turnkey service, Assent allows you to use a single platform to manage compliance data, going deeper than suppliers to their products, and even substances within parts, to map the entire complex manufacturing genome. We can handle complete bills of materials (BOMs), and our module triggers additional data collection when a substance list or parts of a list are updated. We’re the only solution built for complex manufacturers on the market, bundling REACH, the Substances of Concern In articles, as such or in complex objects (Products) (SCIP) database, and RoHS to create efficiencies.

Discover Our Approach

Assent’s Complete Prop 65 Solution

With the Assent Compliance Platform, any user in your company can manage supplier data from one dashboard, providing the missing foundation complex manufacturers need to make cross-enterprise sustainability possible. Learn more about our comprehensive approach to supply chain sustainability management.

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See Deeper, Be Smarter, Grow Better

See why our supply chain sustainability platform is the number one choice for the world’s most sustainable complex manufacturers looking to solve California Prop 65 compliance.