27 C.F.R. § 19.428
(a) A consignor may reconsign a shipment of spirits or specially denatured spirits withdrawn free of tax under § 19.424. The shipment may be reconsigned while in transit or upon arrival at the consignee's premises for any bona fide reason. The consignor may reconsign the shipment:
(c) When a consignor reconsigns a shipment, the consignor must cancel the initial record of shipment and prepare a new record of shipment marked “Reconsignment”. The consignor must annotate the copies of the canceled record of shipment and the new record of shipment to cross-reference each other.
(26 U.S.C. 5201)