Cal. Bus. & Prof. Code § 6158.5
This article applies to all lawyers, licensees, law partnerships, law corporations, entities subject to regulation under Section 6155, advertising collectives, cooperatives, or other individuals, including nonlawyers, or groups advertising the availability of legal services. Subdivisions (a) to (k), inclusive, of Section 6158.4 do not apply to qualified legal services projects as defined in Article 14 (commencing with Section 6210) and nonprofit lawyer referral services certified under Section 6155. Sections 6157 to 6158.5, inclusive, do not apply to the media in which the advertising is displayed or to an advertising agency that prepares the contents of an advertisement and is not directly involved in the formation or operation of lawyer advertising collectives or cooperatives, referral services, or other groups existing primarily for the purpose of advertising the availability of legal services or making referrals to attorneys.
Ca. Bus. and Prof'l. Code § 6158.5