27 C.F.R. § 28.80
The withdrawal of liquors without payment of tax or of specially denatured spirits free of tax, under the provisions of this part shall constitute a charge against the bond under which the withdrawal is made of (a) the tax on the liquors withdrawn or (b) of an amount equal to the tax on specially denatured spirits withdrawn that will be due in the event of failure to account for the specially denatured spirits as provided in this part. The tax on liquors so withdrawn, or an amount equal to the tax on specially denatured spirits so withdrawn that would be due as set forth above, shall, on the required accounting for such liquors or specially denatured spirits, constitute a credit to the bond of such tax or amount equal to the tax, as the case may be. Provisions regarding charges and credits on drawback bonds are contained in subpart P of this part.
27 C.F.R. § 28.80