What specific documentation is required when transferring bulk spirits between bonded warehouses under US federal regulations?

Transferring bulk spirits between bonded warehouses under US federal regulations requires specific documentation to maintain tax accountability and ensure product integrity. The key document is the TTB Form 5100.16, 'Report of Transfer or Removal of Spirits, Wines, or Beer'. This form must be completed by both the transferring (shipping) and receiving bonded warehouses. The information required on Form 5100.16 includes: the names, addresses, and permit numbers of both the transferring and receiving warehouses, the date of the transfer, a detailed description of the spirits being transferred (including the type of spirit, proof, and quantity in gallons), the serial numbers of any containers (e.g., tanks or tanker trucks), and a statement certifying that the spirits are being transferred in bond. In addition to Form 5100.16, detailed inventory records must be maintained by both warehouses. These records must accurately track the movement of the spirits and reconcile the quantities transferred with the quantities received. Example: A distiller transferring 5000 gallons of whiskey at 100 proof to another bonded warehouse must accurately record this transfer on Form 5100.16 and maintain supporting documentation in their inventory records. Any discrepancies between the shipping and receiving records must be promptly investigated and reported to the TTB. The transferring warehouse must also provide the carrier transporting the spirits with a copy of Form 5100.16, and the receiving warehouse must retain this document as part of their records. These strict documentation requirements enable the TTB to track the movement of spirits and prevent tax evasion.