RSA 466:30-a Dog Control Law.

I. Notwithstanding any other provisions of this chapter, it shall be unlawful for any dog to run at large, except when accompanied by the owner or custodian, and when used for hunting, for guarding, working, or herding livestock, as defined in RSA 21:34-a, II(a)(4), for supervised competition and exhibition, or for training for such. For the purpose of this section, "accompanied"means that the owner or custodian must be able to see or hear, or both, or have reasonable knowledge of where the dog is hunting, where training is being conducted, where trials are being held, or where the dog is guarding, working, or herding livestock. Nothing herein provided shall mean that the dog must be within sight at all times.
II. In this section, "at large" means off the premises of the owner