TTB Requirements for Transferring Spirit Out In-Bond

For each bond-to-bond transfer, the Consignor (distillery shipping spirits in-bond) is required to compose a transfer record in accordance with the 27 CFR § 19.405 - Consignor For In-Bond Shipments. The Consignor is required to retain one copy of the transfer record, one copy of any accompanying document(s), and forward the original transfer record (along with any associated documents) to the Consignee (distillery receiving spirits in-bond). The packages or containers holding the spirit must be weighed except when secure seals or secured transpiration are used. Additionally, the Consignor must assign temporary serial numbers to the packages or containers and explicitly show the gross shipment weight on a package gauge record prepared according to 27 CFR § 19.619 - Package Gauge Record.

The 27 CFR § 19.620 - Transfer record - Consignor's Responsibility states that the transfer record must show:

• A serial number, which must commence with "1" on January 1 of each year or be a unique identifying number that is not repeated
• The serial number and date of TTB F 5100.16 if applicable ("Application for Transfer of Spirits and/or Denatured Spirits in Bond")
• The name and distilled spirits plant number of the Consignor (sender);
• The name and distilled spirits plant number or bonded wine cellar number of the Consignee (the facility to which the spirits are shipped)
• The account from which the spirits or wines were removed for transfer (i.e., Production, Storage, or Processing Account)
• A description of the spirits, denatured spirits, or wine, including:
  • The name and plant number of the producer, warehouse person, or processor (This is not required for denatured spirits or wine)
  • Kind of spirits or wines (For denatured spirits, show the kind and formula number)
  • Age (in years, months, and days) and year of production
  • Number of packages or cases with their lot identification numbers or serial numbers and date of fill
  • Type of container (If spirits, denatured spirits, or wines are to be transferred by pipeline, show "P/L")
  • Proof gallons for distilled spirits, or wine gallons for denatured spirits or wine
  • Conveyance identification 
  • For distilled spirits products that contain eligible wine or eligible flavors, the elements necessary to compute the effective tax rate as follows:
    • Proof gallons of distilled spirits;
    • Wine gallons of each eligible wine and the percentage of alcohol by volume of each; and
    • Proof gallons of distilled spirits derived from eligible flavors;
• Notation to indicate when spirits will be transferred in-bond from production facility to another plant
• Identification of seals, locks, or other devices affixed to the conveyance or package
• Date of transfer
• Signature and title of the consignor with the penalties of perjury statement required in 27 CFR 19.45

Source: https://www.ttb.gov/distilled-spirits/common-compliance-and-tax-issues-surrounding-distilled-spirits-plant-dsp-audits