Cal. Pub. Util. Code § 120522

Whenever the board acquires ownership of existing facilities from a privately or publicly owned corporation or public utility, either in proceedings in eminent domain or otherwise and maintains the corporation or utility, by whatever name, as a separate, legal corporate entity, the board of directors of the corporation or utility shall continue its responsibilities with regard to its employees’ wages, hours, and other terms and conditions of employment, existing labor contracts, and existing pension plans.