Neb. Rev. Stat. § 77-2705.03

(1) The holder of a direct payment permit holds the permit as a revocable privilege. The Tax Commissioner may revoke a direct payment permit. The Tax Commissioner shall mail notice of revocation to the permitholder. The decision of the Tax Commissioner to revoke a direct payment permit is not appealable. (2) A permitholder may voluntarily relinquish a direct payment permit. (3) Upon revocation or relinquishment of a direct payment permit, the permitholder shall notify all retailers given copies of the permit that it has been revoked or relinquished. Failure to give the notice shall be treated as a failure to pay sales and use taxes.