California Code, Health and Safety Code - HSC § 122370

A swap meet operator may permit a vendor to offer animals for sale at a swap meet provided the local jurisdiction has adopted standards for the care and treatment of those animals during the time that the animals are present at the swap meet and transported to and from the swap meet. This chapter does not apply to the sale of a particular species of animal if a local jurisdiction has adopted a local ordinance prior to January 1, 2013, that applies specifically to the sale of that particular species of animal at swap meets.