N.H. Rev. Stat. § 261:47
A nonresident owner of a vehicle, of which the gross weight of load and vehicle does not exceed the limit imposed by the laws of this state, who has complied with the laws of his state relating to registration and licensing, and who has a bona fide actual residence in a state granting like privileges to residents of this state, which residence is located within 15 miles by highway of the border line of this state, may drive such vehicle upon any ways of this state distant not more than 15 miles from the border line of his state if application for the registration thereof is made in accordance with the provisions of RSA 261:52 and the proper fee is paid and the vehicle is registered by the department.
RSA 261:47
1913, 81:2. 1917, 229:3. 1921, 119:3. PL 100 :28. 1933, 122:2. 1935, 109:1. 1939, 190:5. RL 116:36. RSA 260:41. 1981, 146:1, eff. Jan. 1, 1982.