California CodesBusiness and Professions Code - BPCDivision 8 — Special Business RegulationsChapter 9 — Secondhand GoodsArticle 4 — Tangible Personal PropertySection 21636.6
It is unlawful for any person, who is required to be licensed under Section 21640, to publicly advertise any matter relating to the business for which the license is required without including the license number.
Notes
Prohibits a person required to hold the referenced license from publicly advertising any matter relating to the licensed business unless the advertisement includes the license number. The rule applies to public advertising about the business for which the license is required and makes inclusion of that identifying number mandatory.
Use as reference
Lexinter.net | California Code, Business and Professions Code - BPC § 21636.6 | https://laws.lexinter.net/codes/california/business-and-professions-code/division-8/chapter-9/article-4/section-21636-6