As used in this subchapter, the following definitions apply:
(1) "State" as defined in 2-9-101, MCA.
(2) "State employee" as defined in 2-9-101, MCA.
(3) "State vehicle" means a motor vehicle, trailer, snowplow, or other vehicle designed for travel on public roads that is subject to motor vehicle registration, including any machinery or apparatus attached to the vehicle. The term includes the following:
(a) a "leased vehicle" obtained by the state through an open-ended lease or lease with an option to buy contract;
(b) a "loaned vehicle" provided to the state as a gratuity;
(c) an "owned vehicle" to which the state has title; and
(d) a "rented vehicle" rented by the state for a fee, typically for short-term use in Montana or for out-of-state travel.
(4) "Under the influence" means that as a result of taking into the body alcohol, drugs, or any combination of alcohol and drugs, a person's ability to safely operate a state vehicle has been diminished.