Ky. Rev. Stat. § 186.750 (2026)

As used in this section and KRS 186.752:

(1) "Bi-fuel system" means the power system of motor vehicles that are powered by gasoline and either CNG or LNG;

(2) "Cabinet" means the Transportation Cabinet;

(3) "Clean transportation fuel" means:

(a) Propane, CNG, LNG, bi-fuel systems, or electricity when they are used as motor vehicle fuel; or

(b) Other transportation fuels determined by the division to be comparable with respect to emissions;

(4) "Compressed natural gas" or "CNG" means pipeline quality natural gas that is compressed and provided for sale or use as a motor vehicle fuel;

(5) "Conversion" means:

(a) Repowering a motor vehicle or special mobile equipment by replacing its original gasoline or diesel powered engine with one capable of operating on clean transportation fuel; or

(b) Retrofitting a motor vehicle or special mobile equipment with parts that enable its original gasoline or diesel powered engine to operate on clean transportation fuel;

(6) "Division" means the Division for Air Quality within the Energy and Environment Cabinet;

(7) "Liquefied natural gas," "liquid natural gas," or "LNG" means pipeline-quality natural gas treated to remove water, hydrogen sulfide, carbon dioxide, and other components that will freeze and condensed into liquid form for sale or use as a motor vehicle fuel;

(8) "Liquefied petroleum gas," "propane," or "LPG" means a hydrocarbon mixture produced as a by-product of natural gas processing and petroleum refining and condensed into liquid form for sale or use as a motor fuel;

(9) "Motor vehicle" means a self-propelled device by which a person or property may be transported upon a public highway, except a device moved by human or animal power or used exclusively upon stationary rails or tracks, or which derives its power from overhead wires; and

(10) "Special mobile equipment" means a motor vehicle or mobile equipment not designed or used primarily to transport people, including but not limited to construction or maintenance equipment. Effective: June 25, 2013 History: Created 2013 Ky. Acts ch. 116, sec. 1, effective June 25, 2013.