Livestock Ear Tag Requirements in North Carolina: What Every Producer Needs to Know

If you raise cattle, sheep, goats, or swine in North Carolina, official ear tag requirements are not optional. They are the backbone of the state and federal animal disease traceability system, and failing to comply can result in animals being turned away at livestock markets, denied interstate movement, or flagged by state inspectors.

Since November 2024, the rules for cattle and bison changed significantly at the federal level. Combined with North Carolina’s own NCDA&CS requirements for swine identification and scrapie tagging for small ruminants, there is more to manage than ever. This guide walks you through every requirement that applies to North Carolina producers, species by species, so you know exactly what tags your animals need and when they need them.

Which Animals Require Official Ear Tags in North Carolina

Not every animal on your farm requires an official ear tag, but several common livestock species do under either federal or state rules. Understanding which animals are covered — and under what circumstances — is the first step to staying compliant.

Under federal animal disease traceability regulations, the following categories of cattle and bison 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.

Cattle and bison are exempted from official identification requirements if they are going directly to slaughter. Beyond cattle and bison, sheep and goats are subject to mandatory scrapie identification requirements. The U.S. Department of Agriculture (USDA) requires that sheep and goats be identified with approved, official identification for scrapie when they enter the state, change ownership, or move from their premises.

In North Carolina, swine moving on public roads also require identification. All swine must be tagged with a tag recognized by the NC Department of Agriculture in order to be transported on a public road. The table below summarizes which species require official ear tags and the triggering conditions.

Species	Tagging Trigger	Governing Program	Exemptions
Cattle & Bison	Interstate movement, shows, rodeos; sexually intact ≥18 months	USDA APHIS ADT (9 CFR Part 86)	Direct-to-slaughter animals
Dairy Cattle	All females any age; males born after March 11, 2013	USDA APHIS ADT	Direct-to-slaughter animals
Sheep	Change of ownership, interstate movement, leaving premises	USDA National Scrapie Eradication Program	Low-risk animals in slaughter channels with group/lot ID
Goats	Change of ownership, interstate movement, leaving premises	USDA National Scrapie Eradication Program	Low-risk commercial goats in slaughter channels
Swine	Transport on any public road in North Carolina	NCDA&CS / NC State Regulations	Varies by weight and purpose (see Species section)

Federal RFID Ear Tag Rule: What Changed in November 2024

The most significant shift in livestock identification in a generation took effect on November 5, 2024. If you raise cattle or bison and have not yet updated your tagging practices, this section applies directly to your operation.

USDA APHIS amended the animal disease traceability regulations to require that eartags applied on or after November 5, 2024 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. In plain terms, the old visual-only metal “bangs” tags that many North Carolina producers relied on for decades are no longer sufficient for any cattle or bison tagged after that date.

Currently, the only EID technology approved by APHIS is an 840 tag. 900 series tags do not fulfill the requirements of this rule, because they are not approved as an official means of identification for interstate movement.

Important Note: If your cattle already had official visual-only tags applied before November 5, 2024, you do not need to retag them. Per 9 CFR Part 86, visual-only NUES tags are no longer acceptable as official identification for cattle and bison when applied on or after November 5, 2024. Visual-only NUES tags for cattle and bison placed in ears prior to this date will be considered official for the life of the animal and need not be replaced.

This requirement applies to official identification placed for any reason, including interstate movement, brucellosis vaccination, and tuberculosis testing. The purpose behind the change is straightforward: electronic identification tags and systems provide many advantages over traditional metal tags, including faster information sharing, more accurate and precise identification of animals, and significantly faster record searches during disease outbreaks.

For North Carolina producers who sell cattle across state lines, show animals at fairs, or move breeding stock, the November 2024 rule is now the baseline standard. Consult the USDA Federal Register final rule for the complete regulatory text.

Official 840 RFID Ear Tag Requirements in North Carolina

The 840 RFID tag is now the standard official identification device for cattle and bison in North Carolina and across the United States. Understanding what makes a tag “official” protects you from buying non-compliant products.

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.” The 15-digit number is called an Animal Identification Number (AIN). It consists of 15 digits beginning with the official country code — “840” for the United States.

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. Your choice between the two should be based on any reader equipment or management software you already use on your farm.

Before you can purchase official 840 tags, you need a Premises Identification Number (PIN) for the location where your animals are housed. Your premises identification number is required to order. North Carolina producers can register for a PIN through the NC Farm ID Program by emailing NCFarmID@ncagr.gov.

RFID 840 tags cost between $2 and $5 per tag, depending on the manufacturer, tag style, and order quantity. However, cost assistance is available. Congress directed USDA-APHIS to allocate no less than $15 million for the cost of tags and related infrastructure to help offset those costs. Producers may be able to access EID tags for free via their state veterinarian. In North Carolina, cattle producers may request up to 100 electronic identification button tags when a producer either signs up with NC Farm ID or has a Farm ID but needs Electronic Identification buttons, as well as a tag applicator.

Pro Tip: You are not required to invest in an RFID reader to apply 840 tags. Producers are not required to invest in tag-reading hardware or software, unless they choose to do so for herd management and record keeping. Readers are optional tools that make recordkeeping faster and more accurate, but they are not a compliance requirement.

Species-Specific Ear Tag Rules in North Carolina

While the 840 RFID rule dominates the conversation for cattle, each species has its own identification framework. Here is what North Carolina producers need to know for each type of livestock.

Cattle and Bison

As covered above, all covered cattle and bison receiving new official tags on or after November 5, 2024 must use 840 RFID tags. The 2024 rule applies to sexually intact cattle at or over the age of 18 months; all female dairy cattle of any age; male dairy cattle born after March 11, 2013; and all cattle used for rodeo, showing, or exhibitions. Animals already tagged with official visual tags before that date are grandfathered and do not need to be retagged.

Sheep

Sheep are subject to the USDA National Scrapie Eradication Program, which is a mandatory 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 scrapie identification. In North Carolina, all sheep and goats are required to have an official scrapie tag before leaving your farm.

All official sheep and goat eartags must bear the official U.S. shield. Tags are plastic or metal and come in a variety of styles, shapes, and colors. For state fair and show purposes, all producers showing sheep and goats will be required to maintain USDA scrapie-approved forms of identification matched with the “Got To Be NC” combination tag.

Goats

All goats must comply with USDA Scrapie Eradication Program guidelines. All goats must be appropriately identified and comply with USDA and NCDA&CS Scrapie Eradication Program guidelines. Like sheep, goats moving off your premises, changing ownership, or entering the state must carry approved scrapie identification. The electronic implant device (EID), or microchip, may be used as official ID in the Scrapie Eradication Program if the animals are registered with a national registry association, and the implants are ISO compliant and obtained from a USDA-approved manufacturer.

Swine

North Carolina’s swine identification rules differ from the cattle and small ruminant framework. Bred gilts, sows, and boars will be individually identified with an official backtag, eartag, or tattoo. Other swine weighing 150 pounds or less shall be identified with a green paint mark on the back. For state fair and marketing purposes, all swine will be required to have an 840 EID combination tag. If applicable, ear notches will be matched with the “Got To Be NC” tag.

Cattle sold in a public livestock market shall be identified with an official back tag applied at a point just back of the shoulder, or by any other method approved by the State Veterinarian. For non-slaughter cattle sold at public markets, all cattle sold for purposes other than for immediate slaughter in public livestock markets shall be identified with an official ear tag or a legible permanent ear tattoo or other methods approved by the State Veterinarian.

Where to Get Official Ear Tags in North Carolina

North Carolina producers have several channels for obtaining official ear tags, and some options come at no cost through state and federal programs.

• NC Farm ID Program (Free 840 Tags for Cattle): Cattle producers may request up to 100 electronic identification button tags when a producer either signs up with NC Farm ID or has a Farm ID but needs Electronic Identification buttons, as well as a tag applicator. Email NCFarmID@ncagr.gov with questions.
• USDA Scrapie Program (Free Sheep and Goat Tags): The National Scrapie Eradication Program provides up to 100 plastic flock ID tags free-of-charge to first-time participants in the sheep and goat identification program until available funds are expended. Call 1-866-USDA-Tag (866-873-2824) to request tags or a flock ID.
• Approved Commercial 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.
• Accredited Veterinarians: Federal and state animal health officials and accredited veterinarians can distribute tags. Distribution directly to producers from accredited veterinarians or State/Tribe Animal Health Officials is optional and determined by the State or Tribe.
• NCDA&CS Veterinary Division: Contact the North Carolina Department of Agriculture and Consumer Services Veterinary Division directly for state-specific programs. North Carolina residents can call (919) 707-3250 for scrapie ear tag order forms.

Pro Tip: A flock or premises ID is required to order scrapie tags from commercial sources. A national premises ID is also required to purchase official 840 RFID tags or implantable devices. Get your PIN registered before you order tags to avoid delays.

How and When to Apply Ear Tags in North Carolina

Knowing when to tag is just as important as knowing which tag to use. Applying tags too late — after animals are already loaded for transport — creates compliance problems and can delay sales.

The best practice is to tag animals well before they need to move. Apply the official tag well before movement (for example, at processing, preconditioning, or prior to sale or shipment) to avoid delays. For cattle producers in North Carolina, tagging at weaning or at the time of pregnancy check is a practical approach for breeding stock.

Proper placement matters for both animal welfare and tag retention. Place the tag in the middle third of the ear, between the two cartilage ribs, avoiding blood vessels. Follow brand-specific instructions. Clean the applicator and ear before tagging. Ensure firm closure and check retention before animals leave the chute.

For sheep and goats, official scrapie tags must be applied before the animal leaves your premises for any reason — not just for interstate movement. All sheep and goats are required to have an official scrapie tag before leaving your farm. Tag lambs and kids at birth or weaning so they are ready for any sale, show, or transfer that comes up.

A few additional application rules to keep in mind:

1. Use only USDA-approved applicators matched to the specific tag brand and model you purchase.
2. Never reuse a tag from one animal on another — official tags are tamper-evident and designed for single use. NUES eartags are designed for one-time use (tamper-evident) and are imprinted with the NUES number and the Official Eartag Shield.
3. If an animal loses its official tag, replace it promptly and record both the original and replacement tag numbers in your records.
4. Do not apply cattle RFID tags to sheep or goats. Do not use cattle RFID tags on small ruminants. These animals have their own RFID tags.

Ear Tag Requirements for Interstate Movement in North Carolina

Moving livestock across state lines out of North Carolina — or receiving animals from another state — triggers both federal identification requirements and documentation rules. Official ear tags are a necessary but not always sufficient condition for legal interstate movement.

When these animals move interstate, unless otherwise exempt, they must be officially identified and accompanied by an interstate certificate of veterinary inspection (ICVI) or other movement document agreed upon by both the sending and receiving states. This means your accredited veterinarian must issue a health certificate before the animals leave North Carolina.

For cattle and bison, the federal rule is clear: any animal tagged on or after November 5, 2024 must carry an 840 RFID tag to move interstate. Those options remain valid for some purposes, but for interstate movement of covered animals, an 840 RFID tag is now the standard.

For sheep and goats entering North Carolina from out of state, goats and sheep from out-of-state exhibitors must be accompanied by an official health certificate issued within 30 days of entry signed by an accredited veterinarian or an approved state or federally employed veterinarian. The health certificate shall contain a statement that the flock of origin has not had Scrapie diagnosed within the past 42 months.

For cattle entering North Carolina from out of state, any cattle over 6 months of age not originating from a Tuberculosis Free state shall be required to have an official tuberculosis test within 60 days of entry, unless from an accredited herd.

Important Note: Each destination state sets its own import requirements on top of federal minimums. Always confirm the receiving state’s specific rules before shipping animals out of North Carolina. Requirements for brucellosis testing, health certificates, and tag types can vary. Review the transporting livestock laws in North Carolina for additional guidance on movement documentation requirements.

For swine moving interstate, swine from out-of-state exhibitors (including market hogs) must be accompanied by an official health certificate issued within 30 days of entry signed by an accredited veterinarian, or an approved state or federally employed veterinarian.

Recordkeeping Requirements for Ear-Tagged Animals in North Carolina

Applying the right tag is only half of the compliance equation. You also need to maintain records that allow state and federal animal health officials to trace your animals quickly in the event of a disease outbreak.

USDA APHIS also clarified certain record retention and record access requirements as part of the November 2024 rule changes. Specifically, additional recordkeeping requirements include the retrieval of official identification distribution records and certificate of veterinary inspection (CVI) within 48 hours of the request made by federal or state animal health officials.

For livestock markets in North Carolina, the recordkeeping obligation is explicit. A copy of all health certificates issued on cattle and swine sold in a public livestock market shall be kept on file as a part of the livestock market records for at least one year.

For individual producers, the core records you should maintain for each tagged animal include:

• The 15-digit AIN (tag number) for each animal
• The date the tag was applied
• The species, sex, and approximate age of the animal
• Your Premises Identification Number (PIN)
• Any replacement tag numbers if the original tag was lost, along with the date of replacement
• Copies of all ICVIs (health certificates) for animals moved interstate, retained for at least five years per federal ADT regulations

Animal disease traceability information is housed in official federal and state databases. Those databases are not publicly available. Your records stay private and are only accessible to animal health officials with appropriate authorization during a disease investigation.

If you are also participating in the NCDA&CS Got To Be NC Livestock Tag Program, your completed tag reports returned to NCDA serve as part of your official recordkeeping trail. Cattle producers currently using 840 EID tags will be required to match them with “Got To Be NC” tags on their completed report returned to NCDA. Producers not currently using 840 EID tags will be sold a set of tags that will need to be put in the animal’s ear (visual and EID).

Good recordkeeping also protects you commercially. Buyers at livestock sales and auctions increasingly expect complete identification documentation, and the NC Value-Added and age/source verification programs that add premiums to your calves depend on a clean, traceable tag record from birth. For more information on other North Carolina agricultural regulations, see the guides on fishing license requirements in North Carolina and hunting license requirements in North Carolina.