Section 31642 Of Article 3. Disposition Of Potentially Dangerous Or Vicious Dogs From California Food And Agricultural Code >> Division 14. >> Chapter 9. >> Article 3.

. A potentially dangerous dog, while on the owner's property, shall, at all times, be kept indoors, or in a securely fenced yard from which the dog cannot escape, and into which children cannot trespass. A potentially dangerous animal may be off the owner's premises only if it is restrained by a substantial leash, of appropriate length, and if it is under the control of a responsible adult.