California Code, Business and Professions Code - BPC § 22594

(a) The notice required by Section 22592 shall be in a font size that is equal to or greater than 100 percent of the standard font size of the other paragraphs on the hosting platform's Internet Web site or equal to the default font size on the hosting platform's Internet Web site.

(b) The notice shall be provided immediately before the offeror lists each real property on the hosting platform's Internet Web site, and shall require the offeror to interact with the hosting platform's Internet Web site to affirmatively acknowledge he or she has read the notice. This affirmative acknowledgment may be accomplished by the inclusion of a statement in the notice described in Section 22592 that the offeror acknowledges reading this notice before proceeding to list a real property with the hosting platform's Internet Web site.