The Secretary of Revenue may enter into reciprocal audit agreements with other agencies of this State or agencies of another jurisdiction for the purpose of conducting joint audits of any registrant subject to audit under this section.
As a result of an audit, no assessment shall be issued and no claim for refund shall be allowed which is in an amount of less than ten dollars ($10.00).
The results of any audit conducted under this section shall be provided to the Division. The notice of any assessments shall be sent by the Division to the registrant by registered or certified mail at the address of the registrant as it appears in the records of the Division of Motor Vehicles in Raleigh. The notice, when sent in accordance with the requirements indicated above, will be sufficient regardless of whether or not it was ever received.
The failure of any registrant to pay any additional registration fees or tax within 30 days after the billing date, shall constitute cause for revocation of registration license plates, cab cards and reciprocal privileges, or shall constitute cause for the denial of registration of a vehicle registered through the International Registration Plan or a vehicle no longer registered through the International Registration Plan.
N.C. Gen. Stat. § 20-91