Cal. Health & Safety Code § 25997

Glazing materials subject to human impact in residential, commercial, and public buildings shall, to the extent not preempted by federal law, comply with the provisions of Section 5406 of the 1982 edition of the Uniform Building Code. Those glazing materials shall be subject to the requirements specified in Standard No. 54-2 of the 1982 edition of the Uniform Building Code Standards, or subject to comparative requirements which are determined by the local building official, responsible for enforcement of such standards, to produce at least equivalent performance.