9 CFR § 91.5
Identification of livestock intended for export
November 6, 2020
Livestock that are intended for export must be identified in a manner that allows individual animals to be correlated to the animals listed in the export health certificate. If the importing country requires a specific or an additional form of identification, the livestock must also bear that form of identification.
(Approved by the Office of Management and Budget under control number 0579-0432)