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WYOMING LIVESTOCK BOARD
Animal Health
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ADT Rule
USDA has amended the animal disease traceability (ADT) rule in relation to official identification requirements for cattle and bison moving interstate. These requirements will take effect on November 5, 2024.
Main rule amendment:
- Requires official eartags to be visually and electronically readable for interstate movement of certain cattle and bison
Amended rule pertains to the following classes of animals:
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Sexually intact cattle and bison that are 18 months of age and older
- All dairy cattle of any age
- All cattle and bison of any age used for show, exhibition, rodeos, or recreational events
Official RFID Tags
General characteristics of official RFID tags
- The animal identification number starts with 840.
- There is a US shield on the tag.
- The tag is electronically and visually readable.
 Placement of official RFID tags (840 series):
- Tags can be placed in either ear.
- It is recommended to place RFID tags in the same ear of cattle on an operation for user ease (i.e. you can scan ears from one side of the chute).
- If an RFID is placed in the RIGHT EAR in heifers, the RFID should be placed so that the bangs tattoo can easily be applied and read (see image below).
Metal NUES and Bangs tags:
- Metal NUES tags and metal bangs tags placed PRIOR to November 5th, 2024 are still considered official id and will be grandfathered in.
- These cattle can have an RFID placed in addition to their current metal tag.
- Metal NUES or metal bangs tags should not be placed after November 5th, 2024.
900 series RFIDs tags:
- 900 series RFIDs are NOT considered official ID.
- A form of official ID should be placed.
- Prior to November 5th, this could be a metal NUES tag or metal bangs tag, but preferably an 840 series RFID tag.
- After November 5th, an official 840 series RFID should be placed as official ID for classes of cattle described above.
Please contact WLSB at (307) 777-7515 or lsbforms-applications@wyo.gov with any questions or concerns.
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