Cal. Pub. Util. Code § 8310
(a) Each utility, and independent contractor or subcontractor of a utility, shall do both of the following:
(2) Adopt, consistent with its duty to furnish and use safety devices and safeguards as required by Section 6401 of the Labor Code and as part of its injury prevention program that conforms to the requirements of Section 6401.7 of the Labor Code, a written program of policies and procedures to ensure both of the following:
(g) For purposes of this section, all of the following definitions apply: