Any owner required to register a snowmobile or all-terrain vehicle shall apply to the commissioner and shall file evidence of ownership by affidavit or document. Upon receipt of an application in proper form and the registration fee, the commissioner shall assign an identification number and provide the owner with a certificate of registration and registration plate. The registration plate, which shall be affixed by the owner, shall be displayed on the snowmobile or all-terrain vehicle at a place and in a manner prescribed by the commissioner. In addition to such registration plate, each snowmobile and all-terrain vehicle so registered shall display its registration number on each side of its front section, midway between the top and bottom of said front section, in letters or numbers at least three inches in height and made of a reflective material. The certificate of registration shall be carried on such snowmobile or all-terrain vehicle and shall be available for inspection whenever such snowmobile or all-terrain vehicle is being operated. The owner shall pay a fee of thirty dollars for a triennial registration for each snowmobile or all-terrain vehicle so registered and a prorated amount if the registration period is less than three years.