Section 265:108 - Certain Towing ProhibitedI. Except as otherwise provided in this section, no vehicle, truck-tractor, or tractor may tow on any way more than one vehicle, truck-tractor, trailer or semi-trailer, except one used exclusively for agricultural purposes. This provision shall not apply to:(a) Towing by duly authorized wrecking vehicles.(b) Transportation of new and used trucks in saddlemount combinations, provided no more than 3 saddlemounts may be used in any combination, and provided that all vehicles comply with the regulations of the federal Bureau of Motor Carrier Safety regarding driveaway-towaway operations as provided in title 49 of the Code of Federal Regulations, part 393.71.(c) Commercial vehicle combinations consisting of a truck-tractor, semi-trailer and not more than one full trailer driven on:(1) Any interstate and defense highway.(2) On sections of the state turnpike system with 4 lanes under conditions and rules as adopted under RSA 541-A by the commissioner of transportation.(3) On such access routes to terminals, facilities for food, fuel, repairs and rest as the commissioner of the department of transportation shall designate by rules adopted under RSA 541-A.II. Access routes for truck-tractor, semi-trailer or full trailer combinations to and from the interstate system and state turnpike system from and to terminal facility sites may be granted by permit upon application in writing to the commissioner of the department of transportation by the terminal facility operator or owner. Access to points of loading and unloading for household goods carriers may be granted on an individual basis by application to the department of transportation. Said approval, based on reasonably safe highways and driving conditions, may be granted for class I and class II highways, and, with concurrence of local officials, for class IV and class V highways.RSA 263:7-b. 1977, 167:1. 1981, 146:1. 1983, 434:9. 1985, 213:21, eff. Jan. 1, 1986.