Trent Norris is one of the foremost consumer product attorneys in the country and co-leader of the firm’s Consumer Products and Retail Sector. His litigation and counseling practice involves some of the most significant challenges for manufacturers and retailers of everyday products and services.

Mr. Norris litigates complex scientific and technical disputes involving consumer protection, advertising, environmental, product safety, and food and drug law, with a particular emphasis on the unique requirements of California law. His more than 25 years of experience with regulators, prosecutors, activists, bountyhunters, and plaintiffs lawyers also provide clients with practical perspectives on litigation avoidance.

His practice involves diverse products, technologies, and industries, including foods, beverages, dietary supplements, cosmetics, hospitality, medical devices, electronics, vehicles, drugs, and agriculture. He often represents trade associations and joint defense groups in strategic counseling, litigation, and representation before regulatory agencies.

Common issues include preemption, commercial speech, interstate commerce, citizen enforcement, jurisdiction, and class action requirements. Common opponents include activist and environmental groups, the California Attorney General, California District Attorneys, and plaintiffs' lawyers.

Mr. Norris has advised and defended hundreds of companies regarding California's unique toxics and labeling law, Proposition 65, and California's expansive consumer protection laws. Chambers USA (2012) notes that he "is renowned as one of the region's leading experts in toxic tort and Proposition 65 matters. Clients particularly laud his ability to focus on the issues at the core of the problems they take him."

Mr. Norris is registered as a lobbyist before the California Environmental Protection Agency and its sub-agencies. He served as a legislative aide to a US Senator and as an Editor of the Harvard Law Review.


  • Several retailers and manufacturers of cosmetics, drugs, and dietary supplements concerning slack fill allegations by California District Attorneys and consumer class action attorneys.
  • Leading grocery chain in consumer class action alleging failure to use rewards card database to contact consumers regarding food recalls.
  • Private label manufacturer of flushable wipes in Federal Trade Commission proceeding.
  • Leading software as a service provider in defeating consumer class action challenging subscription and cancellation policy.
  • Major retailer in defeating consumer class action alleging failure to disclose trans fat levels in food products.

  • Major restaurant system in defeating two nationwide and four state class actions challenging nutritional information on menus.
  • Major manufacturer of joint health products in purported nationwide class action alleging false advertising regarding product benefits.
  • Cosmetic manufacturer in Lanham Act challenge to competitor's labeling.
  • Leading satellite radio provider in class action alleging unlawful recording of calls to customer service numbers.
  • Civil Justice Association of California in passage of initiative reforming California's consumer protection laws.


California Legislature Narrows Legislation to Now Regulate Single-Use Packaging and "Most Littered" Single-Use Plastic Products
California – Land of the Regulated: Prop 65, Slack Fill, and Other Significant California Regulations for the Dietary Supplement Industry
Speaker, ACI-Council for Responsible Nutrition's Annual Legal, Regulatory and Compliance Forum on Dietary Supplements, New York, NY
Speaker, UCLA Food Law Conference, Los Angeles, CA
Calif. Bills Would See Huge Changes For Single-Use Products
California Law360, Environmental Law360, Food & Beverage Law360, Hospitality Law360, New York Law360, Public Policy Law360, Retail & E-Commerce Law360
California Legislature Proposes Expansive and Unprecedented Regulation of Single-Use Products and Packaging


Chambers USA
Environment (California) (2005-2019)
Food & Beverages: Regulatory and Litigation (Nationwide) (2013-2019)
National Law Journal
Litigation Trailblazer (2018)
Best Lawyers
Litigation: Environmental (2007-2020)
"San Francisco Lawyer of the Year" – Litigation: Environmental (2017)


  • JD, Harvard Law School, 1992, magna cum laude
  • BA, Computer Science, Brown University, 1986, magna cum laude
  • California
  • Supreme Court of the United States
  • US Court of Appeals for the Sixth Circuit
  • US Court of Appeals for the Ninth Circuit
  • US Court of Appeals for the Tenth Circuit
  • US District Courts for the Central, Eastern, Northern, and Southern Districts of California
  • US District Court, Northern District of Illinois
  • US District Court, Eastern District of Texas
Government & Military Service
  • Legislative Assistant (Appropriations, Environmental, Public Lands, and Transportation), US Senator Wyche Fowler, Jr.
  • Member, Editorial Board, Association of Business Trial Lawyers (Northern California) Report (2002-2014)
  • Lawyer Representative (N.D. Cal. 2010-13)
  • Member, Bar Association of San Francisco
  • Member, Bay Area Lawyers for Individual Freedom (BALIF)
  • Member, Board of Directors, The Peter M. Cicchino Social Justice Foundation (2000-2015)
  • Member, Magistrate Judge Merit Selection Committee (N.D. Cal. 2011)
  • Fellow, American Bar Foundation

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