The owner of a dog determined to be a vicious dog may be prohibited by the city or county from owning, possessing, controlling, or having custody of any dog for a period of up to three years, when it is found, after proceedings conducted under Article 2 (commencing with Section 31621), that ownership or possession of a dog by that person would create a significant threat to the public health, safety, and welfare.
Ca. Food and Agric. Code § 31646