Bi-fuel vehicle means a vehicle with two separate fuel storage systems that can run part-time on two different fuels and is designed to run on only one fuel at a time;
Mono-fuel vehicle means a vehicle that is designed to run primarily on one type of fuel.
Alternative fuel vehicle means a vehicle designed to be capable of running on at least one type of fuel that is either gaseous at atmospheric temperature and pressure, or substantially non-mineral oil derived.
Transport vehicle means a motor vehicle or rail car used for the transportation of cargo by any mode. Each cargo-carrying body (trailer, railroad freight car, etc.) is a separate transport vehicle.
Transit vehicle means a bus, rapid transit vehicle, railroad car, street railway car, water vehicle, taxicab, or other type of public transportation vehicle or individual unit, whether operated singly or in a group that provides public transportation.