Cal. Food & Agric. Code § 24114

If the owner cannot be ascertained, the director shall cause a notice of the seizure of the animal to remain posted for a period of 14 days on a bulletin board in each office of the Bureau of Livestock Identification. In addition to posting the notice, the director shall periodically publish a list of the descriptions of the animals, containing the information specified in Section 24106, in the classified section of a horse-oriented publication which is in general circulation throughout the State of California. The notices shall also state the time and place of the animal’s proposed sale.