Ky. Rev. Stat. § 189.2301
The provisions of this chapter to the contrary notwithstanding, a vehicle that has a valid registration of a declared gross vehicle weight, including any towed unit, of eighty thousand (80,000) pounds or less shall be exempt from any axle weight provisions when operating on any state-maintained highway that is classified as a "AAA" highway, if the vehicle is hauling seventy-nine thousand nine hundred ninety-nine (79,999) pounds or less. A person operating a vehicle under the provisions of this section shall have written documentation verifying the weight of the load being hauled is seventy-nine thousand nine hundred ninety-nine (79,999) pounds or less. The provisions of this section shall not apply to any vehicle operating on the interstate highway system or any vehicle operating on any highway where the vehicle would exceed any posted bridge weight limit.
KRS 189.2301
Created 2003, Ky. Acts ch. 157, sec. 1, effective6/24/2003.