Livestock Ear Tag Requirements in Utah: What Every Producer Needs to Know
July 3, 2026
If you raise cattle, sheep, goats, or other livestock in Utah, ear tag compliance is one of the most consequential regulatory responsibilities you carry. A missing or non-compliant tag can stop an interstate shipment, trigger fines, or complicate a disease investigation that affects your entire operation.
The rules tightened significantly when a federal mandate took effect in November 2024, requiring electronic identification (EID) tags for certain cattle and bison moving across state lines. Understanding exactly which animals need tags, what type of tag qualifies, and how to document everything correctly is essential for any Utah producer who sells, shows, or transports livestock.
This guide walks you through every layer of Utah’s ear tag requirements — from the federal RFID rule to species-specific programs, tag sourcing, application timing, interstate movement paperwork, and recordkeeping obligations.
Which Animals Require Official Ear Tags in Utah
Utah producers operate under a combination of federal Animal Disease Traceability (ADT) rules and state-level requirements. The species covered under federal ADT regulations include cattle and bison, sheep and goats, swine, horses and other equids, captive cervids such as deer and elk, and poultry. Not every animal in each species category requires official identification — the obligation depends on age, sex, intended movement, and use.
For cattle and bison, the following categories are subject to official identification requirements for interstate movement: all sexually intact cattle and bison 18 months of age or over; all female dairy cattle of any age and all male dairy cattle born after March 11, 2013; cattle and bison of any age used for rodeo or recreational events; and cattle and bison of any age used for shows or exhibitions.
For sheep and goats, the scrapie eradication program drives identification requirements. Sheep and goats must have official ear tags when moving off their premises of origin, with the main exception being castrated sheep and goats under 18 months of age, or sheep and goats of any age shipped directly to a slaughter establishment or a federally approved market that has agreed to apply official ear tags.
Pro Tip: If you are unsure whether a specific animal in your herd or flock requires tagging, contact the Utah Department of Agriculture and Food (UDAF) Veterinary Services office before moving the animal. Getting clarity upfront is far less costly than a compliance violation at a livestock market or state line.
The USDA’s final 2024 Animal Disease Traceability rule only changes the type of tag that can be used — it does not change the class of animals that are required to be tagged. So the categories above remain the same; what changed is the technology the tag must contain.
Federal RFID Ear Tag Rule: What Changed in November 2024
The single biggest shift in livestock identification rules in over a decade took effect on November 5, 2024. USDA APHIS amended the animal disease traceability regulations to require that eartags applied on or after that date be both visually and electronically readable in order to be recognized for use as official eartags for interstate movement of cattle and bison covered under the regulations.
USDA published the final rule on May 9, 2024, making the effective date November 5, 2024. The rule was promulgated by the USDA Animal and Plant Health Inspection Service (APHIS). The driving rationale is disease response speed: USDA says “electronic identification and records for livestock movement are critical for safeguarding animal health” and that the rule “enables rapid tracing of sick or exposed animals and a rapid response to animal disease.”
Importantly, if your animals already carried official visual-only tags before the rule took effect, you do not need to retag them. Visual eartags applied to animals prior to November 5, 2024, will be recognized as official eartags for the life of the animal. Going forward, however, electronic tags are required when tagging applicable animals.
| Tag Applied Before Nov. 5, 2024 | Tag Applied On or After Nov. 5, 2024 |
|---|---|
| Visual-only tags remain valid for the life of the animal | Must be both visually and electronically readable (RFID) |
| No retagging required | Non-RFID tags do not qualify as official ID |
| Grandfathered under old rule | Must bear 840 AIN prefix and USDA shield |
USDA estimates this rule affects approximately 11 to 12 percent of the national cattle herd in any given year. For Utah producers, that translates to breeding stock, show animals, rodeo cattle, and dairy herds — essentially any animal that leaves your property and crosses a state line for a purpose other than direct slaughter.
Official 840 RFID Ear Tag Requirements in Utah
The standard official identification for covered cattle and bison in Utah is the Animal Identification Number (AIN) “840” tag. Official EID tags are USDA approved official tags that have a visible 15-digit number starting with 840 printed on them that matches the electronic chip inside the tag, are stamped with the US shield, and say “unlawful to remove.”
Both HDX (half-duplex) and FDX (full-duplex) low-frequency ear tags meet U.S. standards for official EID. Either is acceptable for official purposes — choose based on your reader equipment and management software. You do not need a reader to apply or use an 840 tag. Electronic identification tags do not require a reader to be used; however, using EID readers to scan tags, rather than manually reading, makes the process quicker, easier, and more accurate for recordkeeping.
Before you can order 840 tags, you need a Premises Identification Number (PIN). A PIN is a nationally unique number assigned by a state, tribal, and/or federal animal health authority to a premises that is, in the judgment of the authority, a geographically distinct location from other premises. In Utah, contact the UDAF Veterinary Services office to register your premises and obtain your PIN. Once assigned, provide that number to your tag distributor when placing an order.
Pro Tip: When you add a new EID tag to an animal that was previously identified with a visual-only tag, you must record both tag numbers and the date the new tag was applied. Keep that record on file — it will matter during any disease investigation or audit.
Since March 11, 2015, all official eartags applied to animals must bear an official eartag shield. If a tag you are considering does not display the USDA Route Shield graphic with “US” imprinted in it, it does not qualify as official identification regardless of whether it has an RFID chip.
Species-Specific Ear Tag Rules in Utah
Different livestock species fall under different federal identification programs, and the tag type and trigger for identification vary accordingly. Here is how the rules break down for Utah’s major livestock species.
Cattle and Bison
As detailed above, sexually intact cattle and bison 18 months or older, all dairy cattle, and any cattle used for rodeo, recreation, shows, or exhibitions must carry official RFID 840 tags when moving interstate as of November 5, 2024. Beef feeder cattle under 18 months are generally exempt from the EID requirement unless the destination state or a disease program requires it. Cattle and bison going directly to slaughter are also exempted from official identification requirements.
Sheep and Goats
Sheep and goats are governed by USDA’s National Scrapie Eradication Program, a mandatory federal identification program. All sheep over 18 months of age, sexually intact sheep under 18 months of age that are sold for breeding or exhibition, sheep sold unrestricted, sheep not in slaughter channels, and sheep that have lambed or are pregnant must carry official identification. For goats, sexually intact goats not in slaughter channels of any age are subject to identification requirements.
Approved ID options for sheep and goats include official plastic flock ID tags, metal serial tags, and RFID 840 tags. There are also exceptions for the use of registration tattoos, flock ID tattoos, and implants/microchips as official ID when the animals are not in slaughter channels or moving through livestock markets. However, tattoos may not be used as the sole form of official ID for animals moving to slaughter or through a livestock market.
Swine
Swine moving interstate for purposes other than direct slaughter must carry a Premises Identification Number (PIN) tag as official identification. USDA APHIS announced a new initiative to provide no-cost EID tags for swine beginning fall 2025, available for sow and exhibition swine producers. Utah swine producers should contact UDAF Veterinary Services to confirm current PIN tag requirements and any state-level additions before moving animals across state lines.
Equine and Captive Cervids
840 AINs are available in microchip implants for equine and other species. Horses and other equids moving interstate generally require an Interstate Certificate of Veterinary Inspection (ICVI) rather than an ear tag, though official ID may be required in certain disease program contexts. Captive cervids such as farmed deer and elk are also covered under federal ADT regulations — contact UDAF for Utah-specific cervid movement permits before any interstate transfer.
Where to Get Official Ear Tags in Utah
Utah producers have several avenues for obtaining official 840 RFID ear tags. The first step is always securing your Premises Identification Number through UDAF Veterinary Services, since the PIN is required to purchase 840 tags.
Once you have a PIN, you can purchase tags directly from USDA-approved manufacturers. Three major manufacturers produce approved 840 tags: Allflex (Dallas, TX), Datamars (Temple, TX), and Y-Tex (Cody, WY). Tags are available through veterinary supply distributors, farm supply stores, and directly from manufacturers. As of the January 2025 APHIS official eartag criteria document, additional approved manufacturers include All Data Tags LLC, AniTrace Inc., Digital Angel Corp., Eriginate Corp., Global Animal Management, Leader Products, Shearwell Data Ltd, and Zee Tags.
RFID 840 tags cost between $2 and $5 per tag, depending on the manufacturer, tag style, and order quantity. Many state veterinarian offices distribute free 840 RFID tags to producers, but supply has been uneven. Contact the UDAF Veterinary Services office directly to ask about current free-tag availability for Utah producers — allocations vary by federal fiscal year and can run out before year-end.
For sheep and goats specifically, you can request free official flock ID tags by calling 1-866-USDA-TAG to request free official sheep and goat serial eartags; accredited veterinarians may alternatively elect to purchase official RFID “840” sheep and goat tags directly from an approved tag manufacturer. A flock or premises ID is required to order tags from these sources.
Pro Tip: Order tags well ahead of your planned movement or sale date. Supply chain delays and high demand periods — especially spring branding season — can stretch lead times. Waiting until the week before a sale to order tags is a common and costly mistake.
How and When to Apply Ear Tags in Utah
Applying tags correctly the first time reduces loss, improves readability, and keeps your records clean. The timing and placement of official tags both matter for compliance and animal welfare.
On timing, apply the official tag well before movement. Apply the official tag well before movement — at processing, preconditioning, or prior to sale or shipment — to avoid delays. For cattle heading to an interstate sale, tagging at weaning or during a pre-sale processing day gives you time to verify the tag is seated and readable before the animal leaves your property.
On placement, the standard protocol for cattle 840 RFID tags calls for the left ear. Place the tag in the middle third of the ear, between the two cartilage ribs, avoiding blood vessels. Follow brand-specific instructions for the applicator you are using. For sheep and goats using metal tags, place it in the left ear, about a third of the way down from the head where it is easier to see and keep out of the way when shearing.
- Use the correct applicator for the specific tag brand and model you purchased — mismatched applicators cause improper seating and tag loss
- Clean the applicator and ear before application. Ensure firm closure and check retention before animals leave the chute.
- Match your HDX or FDX tag choice to any existing reader or herd management software on your operation
- Record the tag number immediately at application — do not rely on reading it again later from the animal
- Remove twine from hay bales and ensure hay rings are in good condition to minimize catching and snagging of tags after application
If a tag is lost or damaged after application, replace it promptly and update your records to reflect both the original and replacement tag numbers. Official tags are tied to a specific animal and premises — official tags may not be sold or given to another person. If you have unused tags you no longer need, destroy them or return them to the APHIS Veterinary Services office.
Ear Tag Requirements for Interstate Movement in Utah
Moving livestock out of Utah — or receiving animals from another state — triggers a specific set of federal and state requirements that go beyond simply having a tag in the animal’s ear. You need to understand both the identification and the documentation requirements together.
For cattle and bison, cattle and bison moved interstate must be accompanied by an Interstate Certificate of Veterinary Inspection (ICVI) unless they are moved directly to a recognized slaughtering establishment, or directly to an approved livestock facility and then directly to a recognized slaughtering establishment, accompanied by an owner-shipper statement.
Exceptions apply for animals crossing state lines in order to go directly to an approved tagging site such as a livestock auction, for animals moved directly to slaughter or through no more than one USDA-approved livestock facility, and for commuter herds that travel between premises owned by the same person or entity in two different states.
Utah shares borders with several states — Nevada, Colorado, Wyoming, Idaho, Arizona, and New Mexico — each of which may impose additional import requirements beyond the federal baseline. If you are moving livestock into Nevada, into Colorado, or into Wyoming, check the destination state’s import rules in addition to Utah’s export requirements. Destination states can and do require additional health tests, permits, or specific tag formats beyond what federal rules mandate.
Utah also has a brand inspection program that intersects with ear tag requirements for cattle and horses. Before moving cattle out of Utah, confirm whether a brand inspection certificate is required for your shipment — you can review the full details in this guide to brand inspection requirements in Utah. Make sure your livestock trailer also meets state standards; see the Utah livestock trailer requirements before your next haul.
Important Note: State-specific rules apply to intrastate transport, and many states may have import requirements for livestock from other states. Always verify the destination state’s current requirements directly with that state’s department of agriculture before loading animals. Requirements can change, and the federal floor is not always the ceiling.
Recordkeeping Requirements for Ear-Tagged Animals in Utah
Tagging an animal is only half the compliance picture. Maintaining accurate, accessible records is equally important — and federal regulations specify exactly how long those records must be kept and who is responsible for keeping them.
Under 9 CFR Part 86, any state, tribe, accredited veterinarian, or other person or entity who distributes official identification devices must maintain for 5 years a record of the names and addresses of anyone to whom the devices were distributed. Official identification device distribution records must be entered into the tribal, state, federal, or other database acceptable to each government entity.
For ICVIs and interstate movement documents, the retention period varies by species. For poultry and swine, such documents must be kept for at least 2 years, and for cattle and bison, sheep and goats, cervids, and equine species, 5 years. That five-year window applies to both the issuing and receiving parties — your accredited veterinarian keeps a copy, and so does any approved livestock facility that handled the shipment.
As a Utah producer, your own on-farm records should capture the following for each officially identified animal:
- The animal’s official tag number (the full 15-digit AIN beginning with 840)
- The date the tag was applied
- The premises from which the tag was distributed (your PIN)
- Any replacement tag numbers and the date of replacement, with a cross-reference to the original tag
- Movement records — where the animal went, when, and with what documentation
- Health certificates (ICVIs) associated with each interstate movement
Official ear tags provide animal health officials with a specific starting point from which to trace diseased or potentially diseased animals. The required tag distribution records associate the official identification number with the person that received the device. Without official identification, animal health officials’ ability to accurately trace an animal’s movements can take months or may never be achieved.
Electronic recordkeeping is strongly encouraged. Using EID readers to scan tags, rather than manually reading, makes the process quicker, easier, and more accurate for recordkeeping. Several herd management software platforms can import scanned 840 tag numbers directly, reducing transcription errors and making it easier to pull records during an audit or disease investigation. Whether you keep paper or digital records, store them in a location you can access quickly — inspectors can request them during routine checks or emergency tracebacks.
If you move livestock to or from other states frequently, staying current on the trailer regulations in neighboring states is equally important. Producers hauling through the region may want to review requirements in Oregon, Kansas, or Oklahoma depending on your routes and markets. For producers sending animals to southeastern or midwestern markets, requirements in states like Tennessee, Missouri, and Georgia may also apply.
Staying compliant with Utah’s livestock ear tag requirements comes down to three habits: tag the right animals with the right tags before they move, carry the right paperwork with every interstate shipment, and keep your records organized and accessible for five years. When in doubt, your accredited veterinarian and the Utah Department of Agriculture and Food are your best resources for state-specific guidance. The USDA APHIS official eartag criteria document, updated as of January 31, 2025, provides the complete technical specifications for every approved tag type across all species.