Commissioners

Hayley Williamson was appointed Chair of the Public Utilities Commission of Nevada effective January 1, 2020.

Prior to her appointment, Chair Williamson served as a Commissioner and as Senior Assistant General Counsel and Acting General Counsel for the PUCN. As a Commissioner, Chair Williamson has been responsible for developing rules to implement many important pieces of legislation, including Nevada’s Renewable Portfolio Standard, renewable natural gas requirements, and Natural Disaster Protection Plans. Chair Williamson has worked at the PUCN since 2013 and has more than a decade of public utility law experience. As an attorney for the PUCN, Chair Williamson represented the agency before Nevada district courts and the Nevada Supreme Court, and she appeared on behalf of the agency at the Federal Energy Regulatory Commission.

In addition to her role at the PUCN, Chair Williamson is a member of the Nevada Transmission Task Force, and she also serves as Vice Chair of the Body of State Regulators, having been elected in 2020 by Commissioners across the western United States. Chair Williamson is also the Vice Chair of Board of the Tahoe Regional Planning Agency, a bistate agency leading the regional effort for Lake Tahoe’s conservation and restoration. Additionally, Chair Williamson was elected by her national peers to serve on the Board of the National Association of Regulatory Utility Commissioners in 2022.

Chair Williamson graduated magna cum laude from the University of Wisconsin - Stevens Point, where she earned her bachelor’s degree; and magna cum laude from Vermont Law School, where she earned her juris doctorate. At Vermont Law School, Chair Williamson was an editor of the Vermont Law Review. She also holds a Master of Philosophy degree from the University of Cambridge, where she wrote her master’s thesis on renewable energy and land use issues on the West Coast.

Chair Williamson lives in Stateline, Nevada, in the Lake Tahoe area with her family.

C.J. Manthe was appointed to the Public Utilities Commission of Nevada by Governor Brian Sandoval, effective November 5, 2018, and reappointed by Governor Steve Sisolak on July 26, 2021 to an additional four-year term commencing October 1, 2021.

Commissioner Manthe has more than 30 years of management experience in both the public and private sectors in the fields of banking, healthcare, public accounting, non-profits and state and local governments. She most recently served as the Director for the Nevada Department of Business and Industry, where she had oversight for 12 diverse state divisions and 25 boards, commissions and advisory committees.

Previously, Commissioner Manthe was elected to serve as a council member for the City of Blaine in Washington State and as a county commissioner for Marathon County in Wisconsin.

Commissioner Manthe earned a bachelor’s degree in Managerial Accounting from the University of Wisconsin and is a certified public accountant.

Tammy Cordova was appointed to the Public Utilities Commission of Nevada by Governor Steve Sisolak, effective June 22, 2020.

Commissioner Cordova has more than two decades of experience in state government and the United States Navy. She has worked for the PUCN since 2001. Before her appointment to the Commission, Commissioner Cordova served as staff counsel of the PUCN’s Regulatory Operations Staff. Previously, she also served as assistant staff counsel and as an administrative attorney, with duties in both Northern and Southern Nevada. During her tenure at the PUCN, she has focused on a collaborative and practical approach to providing the recommendations and analysis of the Regulatory Operations Staff to the Commission. Commissioner Cordova served as an officer in the United States Navy from 1991 to 1996 and was an executive director in Europe of a branch of the Navy-Marine Corps Relief Society.

She graduated with a Bachelor of Science in human and organizational development from Vanderbilt University and earned her Juris Doctorate from University of San Diego School of Law. Commissioner Cordova also is a founding executive committee member of the Energy, Utilities and Communications Law section of the Nevada State Bar and is Co-Vice-Chair of the National Association of Regulatory Utility Commissioners Committee on Gas. Originally from Salisbury, Maryland, Commissioner Cordova lives in Las Vegas.