California Code, Public Utilities Code - PUC § 885

(a) Any entity offering the services of telephone prepaid debit cards is subject to the registration requirements of Section 1013, commencing January 1, 1999, unless that entity is certificated by the commission to provide telephone service.  An entity subject to this requirement includes any of the following:

(b) Resellers of telephone prepaid debit cards who do not engage in any of the activities described in subdivision (a) are not subject to the registration requirement imposed by subdivision (a).  Resellers that are not subject to the registration requirement imposed by subdivision (a) include both of the following:

(c) Telephone prepaid debit cards offered in a promotional manner or gratis shall not subject the provider to the registration requirement imposed by subdivision (a), unless the cards are issued in conjunction with the sale of related goods or services.

(d) The commission shall maintain a list of certificated interexchange carriers and shall supply that information upon request.