Brewer's bonds may be terminated as to liability for future removals or receipts (a) pursuant to application of the surety as provided in § 25.103 , (b) on approval of a superseding bond, or (c) on notification by the principal that the business has been discontinued. On termination of the surety's liability under a bond, the appropriate TTB officer will notify the principal and sureties.
27 C.F.R. § 25.104
31 U.S.C. 9301 , 9303