KRS 281.751: Registering trailers and semitrailers -- Exemptions.

Trailers or semitrailers which are operated by carriers or motor carriers under the

jurisdiction of this department shall be registered by the owner or operator thereof

applying to the county clerk of the county in which he resides or in which such vehicle is

principally operated, in accordance with KRS 186.655; provided, however, that the

provisions of this section do not apply to the following:

(1) Trailers or semitrailers operated in interstate commerce in this state by carriers or

motor carriers domicil ed in a state other than this state when used in combination

with power units licensed in a state other than this state, said power units being

lawfully entitled to reciprocal privileges in this state under the circumstances being

operated; or

(2) Trailers or semitrailers operated in interstate commerce in this state by carriers or

motor carriers domiciled in a state other than this state when used in combination

with power units licensed in a state other than this state, said power units not being

lawfully entitled to reciprocal privileges in this state under the circumstances being

operated if said power units are at the time properly licensed in this state or are

operated under a lawful exemption from the requirements of licensing in this state;

or

(3) Trailers or semitrailers operated in interstate commerce in this state on a lawful

interchange basis by carriers or motor carriers domiciled in this state.