Cal. PUC § 716

(a) If an incumbent local exchange carrier files a forbearance petition with the Federal Communications Commission pursuant to Section 10 of the federal Communications Act of 1934 (47 U.S.C. Sec. 160), requesting that the Federal Communications Commission forbear from enforcing that carrier’s duty to provide to any requesting telecommunications carrier, nondiscriminatory access to network elements on an unbundled basis at any technically feasible point on rates, terms, and conditions that are just, reasonable, and nondiscriminatory (47 U.S.C. Sec. 251(c)(3) and Sec. 271 (c)(2)(B)(ii)), within any metropolitan statistical area located in the state, the commission shall participate in that forbearance proceeding by filing comments on the petition, providing data on competition in the metropolitan statistical area that is the subject of the petition, and taking any other action that advances the state’s policies promoting competition in telecommunications markets.

(b) (1) In order to be prepared to timely comply with subdivision (a), the commission shall develop a sample data request for collecting data on competition in any California metropolitan statistical area. The data shall include, but not be limited to, separate data on competitive options for residential, business, and wholesale services.

(2) All providers of voice communications services, including, but not limited to, local exchange carriers, interexchange carriers, mobile telephony service providers, and providers of facilities-based interconnected Voice over Internet Protocol (VoIP) service, shall provide all data and other information relevant to the forbearance petition requested by the commission pursuant to this section.