Del. Code tit. 21, § 6812

The owner of a specially constructed or reconstructed OHV may make application, accompanied by the required fees, in such form as may be prescribed by the Department, for a special vehicle identifying number. The owner shall furnish such information as will satisfy the Department that the person is the owner, whereupon the Department shall assign a special vehicle identification number for the vehicle. The owner shall cause said number to be affixed as directed by the Department. Such special number shall be regarded as the permanent vehicle identification number of said vehicle.