The individual who is titling the vehicle must have a valid North Carolina driver license or ID. Some exceptions for nonN. This tutorial will provide a step-by-step guide to completing form mvr 317 the affidavit of authority to assign title.This North Carolina title transfer guide gives you everything you need to know to transfer a vehicle title in the Tarheel State. Order Directing Transfer of Motor Vehicle Title PDF, 129 KB. These files may not be suitable for users of assistive technology. The Affidavit of Authority to Assign Title (MVR317) form is unavailable online, but you can pick it up at the DMV. If the registrant is not the owner of the vehicle, the owner must complete and sign section 3 of the. Mecklenburg County is responsible for assessing, billing, and collecting taxes on registered motor vehicles for months that were previously untaxed.