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California Enacts New Warning Requirements Applicable to Cannabis and CBD Products

California’s Proposition 65 – which already poses daunting compliance challenges for a wide range of industries – is now set to apply more broadly to cannabis and cannabidiol (“CBD”) products.  Beginning January 3, 2021, companies who manufacture, distribute, or sell at retail delta-9-tetrahydrocannabinol (“THC”) products in California – including CBD products made with industrial hemp – will be required to warn consumers that exposure to THC is known to the state of California to cause reproductive harm.

California’s Safe Drinking Water and Toxic Enforcement Act of 1986, known commonly as “Prop 65,” is a state law that requires labeling of products that contain chemicals that the state has designated as being known to cause cancer, birth defects or other reproductive harm. Cannabis (marijuana) smoke has been listed as a carcinogen (only) since 2009, but THC has not been previously listed.  That changed on January 3, 2020, when the state listed both cannabis smoke and THC as reproductive toxins under Proposition 65.  Therefore, cannabis smoke is now listed for both cancer and reproductive harm, and THC has been added to the Prop 65 list for the first time. 

The listing does not include a safe harbor limit, meaning that products with any detectable level of THC – including products that contain less than 0.3% THC in conformance with federal law – will require Prop 65 warning labels.  As a result, products made or infused with CBD (and which contain any detectable level of THC) must be labeled in accordance with Prop 65. 

Prop 65’s warning requirements apply to any business in the chain of distribution, including manufacturers, distributors and retailers -- including out-of-state companies selling products in California.  Companies that sell cannabis or CBD products in California can take advantage of the safe harbor warning provisions of Prop 65 and avoid potential litigation by providing warnings that satisfy the complex and specific requirements of the regulation.  It will be important for these companies to consult with experienced regulatory counsel prior to creating packaging or labeling to ensure that they comply with Prop 65 and other labeling requirements promulgated by the California Department of Public Health (“CDPH”). 

THC products sold without warnings (or with warnings that do not satisfy the regulation) can expose sellers to Prop 65 enforcement actions brought by government agencies or individuals.  Prop 65 allows the state to pursue enforcement actions or violations, and fines can be substantial – up to $2,500 per day per violation.  In practice, however, Prop 65 is “enforced” primarily by an aggressive plaintiffs’ bar (seeking quick settlements) that often targets groups of products by filing citizen suits immediately after the waiting period on a newly listed chemical expires.  It would not be surprising if the cannabis industry quickly becomes a target of these “sue and settle” efforts, given that the recently eased regulatory atmosphere around these products had led to a concomitant rise in their marketing and sale.

© 2021 Foley & Lardner LLPNational Law Review, Volume X, Number 70
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About this Author

Erik K. Swanholt, Foley Lardner, litigation attorney
Partner

Erik Swanholt is a partner and litigation attorney with Foley & Lardner LLP. Mr. Swanholt has substantial experience in a broad range of litigation matters, with an emphasis on product liability, pharmaceutical defects, complex commercial and consumer class action litigation, toxic torts, as well as cybersecurity, privacy, and data protection. He has defended individual and class action product liability and toxic tort claims in a variety of industries, including consumer products, fashion, pharmaceuticals, off-road vehicles, industrial safety equipment, asbestos,...

213.972.4614
Nicholas R. Johnson Foley Lardner Law Firm state voluntary cleanup programs lawyer
Associate

Nicholas (Nick) Johnson is an associate with Foley & Lardner LLP and a member of the firm’s Environmental Regulation Practice.

Mr. Johnson has substantial experience in all facets of environmental law and corporate environmental risk management, including both contested proceedings and general regulatory guidance and advice with respect to CERCLA, RCRA, TSCA, the Clean Water Act, the Clean Air Act, state voluntary cleanup programs, and other state and federal environmental laws. Mr. Johnson routinely works with buyers, sellers, investment...

414-297-5340
Hilary Vedvig, Environmental attorney, Foley Lardner
Associate

Hillary Vedvig is an associate and business lawyer with Foley & Lardner LLP. She is a member of the Environmental Regulation Practice.

Ms. Vedvig was a summer associate with Foley where she worked on environmental, real estate, insurance and renewable energy projects. She also worked during the prior two summers for the Ombudsperson Institute of Kosovo, Pristina, Kosovo, as a legal advisor and for the European Human Rights Advocacy Center, London, UK, as a legal intern.

608-258-4263
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