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Henry Weissmann

Henry Weissmann

Munger, Tolles & Olson LLP

Los Angeles, CA, USA

Henry Weissmann is a partner in the Los Angeles office of Munger, Tolles & Olson. Mr. Weissmann represents organizations operating in regulated industries in administrative proceedings, high-stakes class actions and challenges to government regulations. In 2010, BTI recognized Mr. Weissmann as one of its 165 “Client Service All-Stars,” which are selected by corporate counsel. He also is consistently ranked by Chambers USA as a leading lawyer and is listed in The Best Lawyers in America.

Mr. Weissmann has extensive experience in class actions. He has defended clients in over 25 class actions in jurisdictions nationwide, including:

  • Verizon California in a class action challenging the inclusion on bills of charges from third-party service providers that were allegedly unauthorized. The court approved a settlement of the case in August 2013.
  • Verizon California in a putative class action challenging the validity of late fees.
  • MCI in a putative class action in U.S. District Court in the Southern District of New York alleging deceptive practices in enrolling customers in long-distance plans. The court denied class certification in March 2010.
  • Actions alleging that early termination fees in wireless contracts are unlawful penalties. In June 2010, the California Court of Appeal affirmed the approval of a nationwide settlement of those claims.
  • Actions alleging inadequate disclosure of various billing practices.
Mr. Weissmann has participated in over 25 state and federal administrative proceedings, including representation of:
  • Southern California Edison Company in proceedings before the California Public Utilities Commission in connection with the permanent shut down of the San Onofre Nuclear Generating Station Units 2 and 3.
  • Southern California Edison Company in connection with energy crisis in 2000-2001. See SCE v. Peevey, 307 F.3d 794 (9th Cir. 2002); SCE v. Peevey, 31 Cal. 4th 781 (2003).
  • Southern California Edison Company in proceedings before the California Public Utilities Commission regarding recovery of uninsured costs of claims resulting from wildfires in which utility facilities are involved.
  • Verizon Wireless in proceedings before the California Public Utilities Commission to establish consumer protection rules.
In addition, Mr. Weissmann also represents clients in matters involving challenges to government actions, such as:
  • Representation of Southern California Edison Company in a challenge to a decision of the California Public Utilities Commission imposing a surcharge on customer bills to support a program administered by the California Energy Commission.
  • Representation of Tesoro in litigation against the Los Angeles Department of Water and Power concerning whether Tesoro may purchase electricity from another supplier by taking delivery at a point in the refinery located outside the boundary of the City of Los Angeles. In a case of first impression, the California Court of Appeal ruled in September 2010 in favor of Tesoro. City of Los Angeles v. Tesoro Refining & Marketing Co., 188 Cal.App.4th 840 (2010).
  • Challenges to wholesale rates established by state commissions. See, e.g., Verizon California v. Peevey, 413 F.3d 1039 (9th Cir. 2005).
  • Cases alleging that telecommunications carriers assisted the National Security Agency in conducting counter-terrorism intelligence-gathering, including surveillance and the compilation of call records.

Practice Areas





Yale University (J.D., 1987)
Claremont McKenna College (B.A., summa cum laude, 1984) Phi Beta Kappa


Judge James L. Buckley, U.S. Court of Appeals, District of Columbia Circuit, 1987-1988
Justice Antonin Scalia, U.S. Supreme Court, 1989-1990


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