The provisions of §§ 32-22-9 to 32-22-12.1, inclusive, do not apply to a combination of vehicles consisting of a towing motor vehicle or farm tractor and two anhydrous ammonia fertilizer tank trailers. The vehicles in such a combination may not exceed a total length of seventy feet, may travel on public highways only during daylight hours, may not travel in excess of twenty–five miles per hour on any public highway, and each trailer shall display a slow–moving vehicle sign. The towing motor vehicle in such a combination may not have less than an eleven thousand pound gross vehicle weight rating. A violation of this section is a Class 2 misdemeanor.

Source: SL 1997, ch 193, § 1; SL 1998, ch 191, § 1.