Montana requires a front plate on all vehicles designed to have one. They make exceptions for vehicles that aren't equipped with mounts from the factory. They just won't give you the month and year sticker for the front plate.[/QUOTE 61-3-301. Registration -- license plate required -- display. (1) (a) Except as provided in 61-4-120, 61-4-129, and subsection (1)(b) of this section, a person may not operate a motor vehicle, trailer, semitrailer, pole trailer, or travel trailer upon the public highways of Montana unless the motor vehicle, trailer, semitrailer, pole trailer, or travel trailer is properly registered and has the proper license plates conspicuously displayed on the motor vehicle, trailer, semitrailer, pole trailer, or travel trailer. A license plate must be securely fastened to prevent it from swinging and may not be obstructed from plain view.
(b) A motorcycle, quadricycle, trailer, semitrailer, pole trailer, or travel trailer must have a single license plate displayed on the rear of the vehicle. A custom vehicle or street rod registered under 61-3-320(1)(b) or (1)(c)(iii) may display a single license plate firmly attached to the rear exterior of the custom vehicle or street rod. All other motor vehicles must have one license plate displayed on the front and one license plate displayed on the rear of the motor vehicle.