This bill introduces a new legal framework for the registration and regulation of livestock guardian dogs, defined as dogs specifically trained to protect livestock from predators. Under the new section RSA 466:1-e, owners must designate their dogs as livestock guardian dogs during the annual registration process with the town or city clerk. The owner is required to provide a signed statement affirming the dog's purpose and may need to show proof of livestock ownership. The town or city clerk will maintain a record of these dogs and may issue a distinct tag for identification. Additionally, the bill outlines that livestock guardian dogs are subject to existing nuisance laws, with specific provisions for their behavior.

The bill also establishes new regulations regarding the behavior of livestock guardian dogs while they are engaged in protecting livestock. Under RSA 466:30-c, these dogs may run at large on properties that meet certain size requirements, provided they are registered and not exhibiting persistent nuisance behavior. The bill specifies conditions under which barking is considered excessive and outlines penalties for violations, including warnings and civil penalties that escalate with repeated offenses. The act is set to take effect on January 1, 2027.