Commissioners

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

Governor Sisolak appointed Chair Williamson as a PUCN Commissioner on April 29, 2019. As a Commissioner, she has been responsible for developing rules for many important pieces of legislation from the 2019 Legislative session, including rules to implement Nevada’s new Renewable Portfolio Standard. Chair Williamson has worked at the PUCN since 2013 and has more than a decade of public utility law experience. Before her appointment to the Commission, Chair Williamson served as senior assistant general counsel and acting general counsel.

During her time with the PUCN, Chair Williamson successfully represented the agency in the Nevada Supreme Court and at the Federal Energy Regulatory Commission. Chair Williamson also was instrumental in drafting the PUCN’s comments on the Clean Energy Plan. Prior to working at the PUCN, Chair Williamson taught environmental law and environmental science at the University of Wisconsin and at Sierra Nevada College.

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 was born and raised in Madison, Wisconsin, and lives in Stateline, Nevada, 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.