Section 121881 Of Chapter 4. Animal Control From California Health And Safety Code >> Division 105. >> Part 6. >> Chapter 4.

. For purposes of this chapter, "guard dog" or "attack dog" means any dog trained to guard, protect, patrol, or defend any premises, area, or yard, or any dog trained as a sentry or to protect, defend, or guard any person or property, or any dog such as a schutzhund or any similar classification.