Cal. Gov. Code § 14035.3
The department may request a railroad corporation under contractual obligation to the department for services to institute operating efficiencies, other than with respect to the size of operating crews, in connection with the service under contract. The railroad corporation shall respond to the department's request within 30 days after the initial request. In the event of a failure to respond, or refusal by the railroad corporation to effect those operating efficiencies, the Public Utilities Commission, within 60 days after application by the department, shall order the institution of operating efficiencies, if it finds, after a public hearing, that the efficiencies are necessary for the preservation of safety, for the continuation of the service, or for the expansion of service.
Ca. Gov. Code § 14035.3