Cal. HSC § 122317

(a) A person or business that sells or provides a dog for use as an emotional support dog shall provide a written notice to the buyer or recipient of the dog that states all of the following: (1) The dog does not have the special training required to qualify as a guide, signal, or service dog. (2) The dog is not entitled to the rights and privileges accorded by law to a guide, signal, or service dog. (3) Knowingly and fraudulently representing oneself to be the owner or trainer of any canine licensed as, to be qualified as, or identified as, a guide, signal, or service dog is a misdemeanor violation of Section 365.7 of the Penal Code. (b) A person or business that sells or provides a certificate, identification, tag, vest, leash, or harness for an emotional support animal shall provide a written notice to the buyer or recipient that states all of the following: (1) The item does not entitle an emotional support animal to the rights and privileges accorded by law to a guide, signal, or service dog. (2) Knowingly and fraudulently representing oneself to be the owner or trainer of any canine licensed as, to be qualified as, or identified as, a guide, signal, or service dog is a misdemeanor violation of Section 365.7 of the Penal Code. (c) The written notices described in subdivisions (a) and (b) shall be made in at least 12-point bold type, and shall be provided on the receipt for the emotional support dog or the product described in subdivision (b), or on a separate piece of paper.