Prohibits operating a motor vehicle combination consisting of a trailer in excess of 30 feet or a motor vehicle and trailer combination in excess of 48 total feet on designated routes consisting of two specified portions of US Route 25/70. Violations are the same as the specified penalties for those that apply under limitations on tandem trailers and semitrailers in GS 20-115.1. Applies only to Madison County. Applies to offenses committed on or after December 1, 2025.