27 C.F.R. § 25.102
The liability of a surety on a bond required by this part will be terminated only as to liability arising on or after:
(d) In the case of a brewer who applies to terminate a surety bond under § 25.106, the date that TTB approves the brewer's application under that section.
(Sec. 201, Pub. L. 85-859, 72 Stat. 1388, as amended (26 U.S.C. 5401))
[T.D. TTB-146, 82 FR 1128, Jan. 4, 2017]