California Code, Food and Agricultural Code (Formerly Agricultural Code) - FAC § 31645

(a) A dog determined to be a vicious dog may be destroyed by the animal control department when it is found, after proceedings conducted under Article 2 (commencing with Section 31621), that the release of the dog would create a significant threat to the public health, safety, and welfare.

(b) If it is determined that a dog found to be vicious shall not be destroyed, the judicial authority shall impose conditions upon the ownership of the dog that protect the public health, safety, and welfare.

(c) Any enclosure that is required pursuant to subdivision (b) shall meet the requirements of Section 31605.