As used in the Regional Transit District Act:
A. "board" means the board of directors of a district;
B. "bond" means a revenue bond;
C. "combination" means two or more governmental units that exercise joint authority;
D. "commission" means the state transportation commission;
E. "construct" or "construction" means the planning, designing, engineering, acquisition, installation, construction or reconstruction of a regional transit system;
F. "district" means a regional transit district that is a political subdivision of the state created pursuant to the Regional Transit District Act;
G. "governmental unit" means the state, a county or a municipality of the state or an Indian nation, tribe or pueblo located within the boundaries of the state;
H. "regional transit system" means a property, improvement or system designed to be compatible with established state and local transportation plans that transports or conveys passengers within a region by means of a high-occupancy vehicle, including an automobile, truck, bus, van or railcar; and
I. "revenues" means tolls, fees, rates, charges, assessments, grants, contributions or other income and revenues received by the district.