Section 19.403 - Application to receive spirits in bond(a) When the proprietor of a distilled spirits plant qualified under 26 U.S.C. 5171 or of an alcohol fuel plant qualified under 26 U.S.C. 5181 wishes to have spirits or denatured spirits transferred in bond to his plant from another distilled spirits plant, the proprietor must complete an application on form TTB F 5100.16, Application for Transfer of Spirits and/or Denatured Spirits in Bond, in triplicate, and forward it to the appropriate TTB officer for approval. A proprietor is not required to submit an application on TTB F 5100.16 for transfers from customs custody under 26 U.S.C. 5232 .(b) TTB will not approve the application submitted under paragraph (a) of this section unless the proprietor's operations bond or unit bond either is in the maximum penal sum amount or is sufficient to cover the tax on the spirits or denatured spirits to be transferred in addition to all other liabilities chargeable against the bond. If TTB approves the application, TTB will return two signed copies of the approved application to the proprietor.(c) Upon receipt of an approved application from TTB, the proprietor must retain one of the signed copies for his files and forward the other signed copy to the consignor that will ship the spirits or denatured spirits.