Wyo. Stat. § 31-5-1401: Definitions.

(a) As used in this act:

(i) "Emergency vehicle" means as defined in W.S. 31-5-1302(a)(iii);

(ii) "Passenger vehicle" means a vehicle which is self-propelled and designed to carry eleven (11) persons or less and primarily used to transport persons, including autocycles and pickup trucks but excluding emergency vehicles, motorcycles and buses;

(iii) "Police officer" means as defined in W.S. 31-5-102(a)(xxxiii);

(iv) "Safety belt" means a passenger restraint which was installed when the vehicle was manufactured;

(v) "Vehicle" means as defined in W.S. 31-5-102(a)(lviii);

(vi) "This act" means W.S. 31-5-1401 and 31-5-1402.