Livestock Ear Tag Requirements in Virginia: What Every Producer Needs to Know
July 26, 2026
If you raise cattle, sheep, goats, swine, or horses in Virginia, official ear tag requirements are not optional — they are a condition of selling, showing, or moving your animals across state lines. Getting this wrong can mean turned-away livestock at a market, fines, or loss of selling privileges.
Virginia’s tagging rules are administered by the Virginia Department of Agriculture and Consumer Services (VDACS) and align with federal Animal Disease Traceability (ADT) standards set by USDA APHIS. A major federal rule change took effect in November 2024, shifting the official standard for cattle and bison from visual-only metal tags to RFID-capable ear tags. This guide walks you through every requirement, species by species, so you can stay compliant.
Pro Tip: Before you order any official ear tags in Virginia, you need a Premises Identification Number (PIN). Registering your premises is free and is the first step for every producer.
Which Animals Require Official Ear Tags in Virginia
All livestock should be officially identified before moving to a public sale, event, or across state lines — but the exact requirements vary with the species, type of animals, and type of movement. Knowing which animals trigger a tagging requirement will save you time and prevent problems at the gate.
Except beef feeder cattle, all cattle moving to a public sale — including livestock markets, buying stations, or sale barns — or public exhibition in Virginia must have an official ear tag. All dairy cattle moving to a public sale or public exhibition in Virginia must also have an official ear tag.
Sheep and goats arriving at Virginia public livestock markets must be officially identified. Most swine in Virginia belong to integrated commercial systems using identification programs endorsed by the pork industry. Horses and other equines follow a separate identification pathway described later in this article.
The table below summarizes which animals require official ID and under what circumstances:
| Species | When Official ID Is Required | Key Exemptions |
|---|---|---|
| Beef Cattle | Public sale, exhibition, interstate movement (sexually intact ≥18 months; all show/rodeo cattle) | Beef feeder cattle under 18 months (CVI required instead) |
| Dairy Cattle | Public sale, exhibition, all interstate movement | Direct-to-slaughter from approved market (back tag acceptable) |
| Sheep & Goats | Public livestock markets; interstate movement | Direct to slaughter in some cases |
| Swine | Interstate movement; commercial systems per industry programs | Integrated commercial systems with approved programs |
| Equines | Interstate movement (CVI + individual ID required) | Varies by destination state |
Federal RFID Ear Tag Rule: What Changed in November 2024
On November 5, 2024, new federal rules took effect requiring electronic identification (EID) ear tags for certain cattle and bison moving across state lines. The rule, published by USDA APHIS, replaces the old system of visual-only metal tags with radio frequency identification (RFID) tags that can be read electronically.
USDA amended the animal disease traceability regulations to require that ear tags applied on or after the effective date be both visually and electronically readable in order to be recognized as official ear tags 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 changes what counts as official ID — not when official ID is needed. The rules regarding what animals need to be identified and when are not changing. If your cattle were already required to have official tags before November 2024, they still are. The only difference is the tag technology.
Important Note: Some producers advocated grandfathering in existing ear tags — recognizing visual tags as official for animals tagged prior to November 5, 2024. USDA agreed: visual ear tags applied to animals before that date are recognized as official ear tags for the life of the animal. You do not need to retag those animals unless they lose their ID.
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. That is the core reason USDA moved to an RFID-only standard for newly applied cattle and bison tags.
For more on transporting livestock legally in Virginia, see transporting livestock laws in Virginia and livestock trailer requirements in Virginia.
Official 840 RFID Ear Tag Requirements in Virginia
USDA 840 tags are only developed by authorized manufacturers and have a unique Animal Identification Number (AIN) that begins with the prefix 840. The number “840” is the country code for the United States. After the 840, these tags carry 12 additional numbers unique to that animal. Every official 840 tag is therefore a 15-digit number.
USDA tags have a unique 15-digit number starting with “840,” display the USDA shield emblem, and carry “Unlawful to Remove” print. Currently, the only official tags that meet the post-November 2024 requirements for cattle and bison are 840 RFID tags.
There are multiple forms of USDA-approved tags, including visual tags with no radio transponder and radio frequency identification (RFID ear tags) with radio transponder. For cattle and bison tagged after November 5, 2024, only the RFID-capable version counts as official. For other species such as sheep, goats, and swine, visual 840 tags may still satisfy requirements depending on the applicable program.
HDX tags use half-duplex technology that can be read from a greater distance and are beneficial for automated systems. FDX tags use full-duplex technology and are a cost-effective option. Both types meet U.S. standards for official RFID identification.
A Premises Identification Number (PIN) is required to purchase 840-series RFID identification tags. Registering for a PIN is simple and free. You must complete your premises registration through VDACS before placing any tag order.
Pro Tip: Electronic tags can improve the speed and accuracy of recording animal identification, but they do require an investment in electronic equipment and computer software. Budget for a compatible tag applicator and reader before your first RFID tag order.
Species-Specific Ear Tag Rules in Virginia
Virginia’s tagging rules are not one-size-fits-all. Each species has its own identification standard, and understanding the differences protects you from compliance gaps.
Beef Cattle
The beef cattle rules in Virginia center on the type of movement and the animal’s age. Beef feeder cattle less than 18 months of age do not have to be individually identified but must be accompanied by a complete Certificate of Veterinary Inspection (CVI). All other beef cattle moving to a public sale or exhibition require an official 840 RFID tag if tagged after November 5, 2024.
Cattle moving directly to slaughter from approved markets may use official back tags without a CVI. Cattle moving temporarily to an adjacent state for grazing purposes that do not change ownership must be officially identified but do not require a CVI. A signed Commuter Herd Agreement must be in place with both states before cattle move in this manner.
Dairy Cattle
Dairy cattle face stricter identification rules than beef cattle because they move more frequently and across a wider range of purposes. All dairy cattle moving to a public sale, livestock market, buying station, sale barn, or public exhibition in Virginia should be identified with an official ear tag.
All dairy cattle moving interstate must be officially identified and must be accompanied by a Certificate of Veterinary Inspection (CVI), except that cattle moving interstate direct to a slaughter facility from an approved market or buying station may be identified with an official back tag and do not require a CVI. The rule also requires that all dairy cattle, including dairy steers, have individual official ID included on certificates of veterinary inspection. A statement on the CVI that dairy steers are officially identified is no longer sufficient.
Sheep and Goats
Sheep (Ovis aries) and goats (Capra hircus) in Virginia are subject to the federal Scrapie Eradication Program, which drives their identification requirements. Official identification for sheep and goats shall be any form of identification approved by the U.S. Department of Agriculture scrapie eradication program or other form of identification approved by the State Veterinarian.
Approved official 840-series RFID tags include USDA-approved ear tags used for the Scrapie Eradication or Flock Certification Programs. Most states require a Certificate of Veterinary Inspection and official individual ID for sheep and goats moving interstate unless they are going directly to slaughter.
New producers can request a flock ID and a limited number of scrapie tags by contacting USDA at 866.873.2824. Established producers with an existing Flock ID can order tags directly from approved online vendors.
Swine
Swine (Sus scrofa domesticus) identification in Virginia follows a different path than ruminants. Official identification for swine shall be a unique and permanent group or individual identification number issued by an official state or federal program and applied to each animal, or other forms of identification approved by the State Veterinarian.
Official 840-series swine tags are available online, and VDACS offers official metal swine tags at no cost. In a notable development for swine producers, USDA APHIS announced a new initiative in August 2025 to provide no-cost RFID ear tags for swine, available for sow and exhibition swine producers beginning fall 2025.
Horses and Equines
Horses and other equines follow a different identification pathway than tagged livestock species. Equines generally require some form of individual identification and a Certificate of Veterinary Inspection (CVI). Official identification for horses shall be a microchip, registration tattoo, brand, name, and complete physical description as listed or demonstrated by photographs on either a current certificate of veterinary inspection or Coggins test certificate, or other form of identification approved by the State Veterinarian.
Owners should check specific state entry requirements before transporting horses across state lines. Virginia also requires horses entering the Commonwealth to test negative for Equine Infectious Anemia (EIA) within the past 12 months.
Where to Get Official Ear Tags in Virginia
Virginia producers have several options for sourcing official ear tags, and the right channel depends on your species, your existing premises registration status, and whether you need RFID or visual tags.
Official identification tags for livestock are available from the Office of Veterinary Services at no cost to producers. Official plastic ear tags using the 840-series can also be purchased from commercial vendors. Electronic RFID 840-series ear tags are provided to accredited veterinarians in Virginia for regulatory vaccination and testing programs.
- VDACS Office of Veterinary Services — Free official tags for producers enrolled in regulatory programs; contact the Virginia Animal Disease Traceability Program at 804.692.0600 or email richard.odom@vdacs.virginia.gov
- Accredited veterinarians — Official animal identification tags must be applied by an accredited veterinarian or state or federal animal health official. Your vet can often source and apply tags during scheduled herd visits
- Authorized online vendors — Official plastic ear tags using the 840-series can be purchased from commercial vendors; VDACS maintains a list of online resellers. Approved manufacturers include Allflex, Datamars, and Y-Tex
- Livestock markets — Sale or event managers may provide tagging services on-site, but a fee may apply
- Sheep and goat tags — Scrapie Flock ID along with tags for sheep and goats can be requested from the USDA office in Richmond at 804.343.2560
Pro Tip: An official PIN is required to receive official ID tags from VDACS or to purchase 840-series tags from authorized private vendors. Many livestock shows and state fairs in Virginia also require exhibitors to have a registered PIN. Register your premises before you need tags — not the day before a sale.
To register your premises and obtain a PIN, visit the VDACS Premises Registration page. You will need to provide the physical address where animals are kept (no P.O. boxes), a primary contact phone number, and the types of livestock or poultry present.
How and When to Apply Ear Tags in Virginia
Proper tag application protects the animal, keeps the tag readable, and ensures the ID remains valid throughout the animal’s life. Getting the placement wrong can cause tag loss — and a lost tag means your animal is no longer officially identified.
USDA prefers producers apply ear tags in the left ear, leaving the right ear for official use. All ear tags should be placed two-thirds of the way from the outside edge of the ear, and one-third of the way from the head between the middle two cartilage ribs.
If a visual tag and an EID button are placed in the ear, the EID button should be placed in the standard location with the visual tag a little closer to the outside of the ear. The female (thicker) portion of the tag should always be to the inside of the ear.
On timing, the rule is straightforward: animals must be tagged before they leave your premises for a public sale, exhibition, or interstate movement. Special tag applicators are required for 840-series RFID tags. Follow all manufacturer recommendations for tag application and placement to minimize stress on your livestock and ensure that tags stay in as long as possible.
Special tag applicators are required for 840-series tags. Tag applicators are specific to each manufacturer, so confirm compatibility before ordering tags from a new supplier. Official identification shall not be altered or removed. Removing or tampering with an official tag is a federal violation.
| Tag Type | Applicator Required | Preferred Ear | Notes |
|---|---|---|---|
| 840 RFID Button (EID) | Yes — manufacturer-specific | Left ear preferred | Place between middle two cartilage ribs |
| 840 Visual Plastic Tag | Yes — standard applicator | Left ear preferred | Female (thicker) side faces inside of ear |
| Scrapie Tag (sheep/goats) | Yes | Either ear | Must match flock ID on record |
| Official Metal Swine Tag | Standard applicator | Either ear | Available at no cost from VDACS |
Ear Tag Requirements for Interstate Movement in Virginia
Moving livestock out of Virginia — or bringing animals in — triggers a separate layer of requirements beyond basic tagging. Both the federal ADT rules and Virginia’s own admission standards apply simultaneously.
Shipment of livestock into other states shall be subject to all federal laws and regulations governing the interstate shipment of livestock and in conformity with the requirements of the state of destination. Always check the destination state’s entry requirements before loading your trailer, as they may be stricter than Virginia’s.
For cattle moving out of Virginia, the federal categories that require official RFID tags (as of November 5, 2024) are:
- 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
- Cattle and bison of any age used for rodeo or recreation events, shows, or exhibitions
- Animals required to be officially identified under any federal disease program (brucellosis, tuberculosis)
Approved markets and tagging sites in Virginia may voluntarily enter into a binding agreement with VDACS that exempts them from federal identification and CVI requirements. Cattle moving from an approved Virginia livestock market and tagging site to North Carolina, South Carolina, Tennessee, or West Virginia may use a shipping statement or sale receipt in lieu of a CVI, as long as back tags or official ID numbers are listed on the document.
Cattle moving to other states not listed above must meet all entry requirements of those states as well as federal ADT requirements — official ID and CVI are generally required.
For animals entering Virginia from other states, before transporting animals into Virginia, you must obtain a Certificate of Veterinary Inspection (CVI) and, in some cases, a permit. Virginia accepts CVIs from approved electronic platforms, which can streamline the process and may eliminate the need for a separate permit.
If you move livestock regularly across Virginia’s borders, also review the livestock trailer requirements in Virginia and check neighboring state rules — see Pennsylvania, Georgia, and Wyoming for comparison.
Important Note: Ignorance is not a defense, and non-compliance can mean fines, confiscation, or loss of selling privileges. If you are unsure about the destination state’s requirements, call that state’s department of agriculture before the animals leave your farm.
Recordkeeping Requirements for Ear-Tagged Animals in Virginia
Tagging your animals is only part of the obligation. Virginia and federal rules require that records tied to those tags be created, maintained, and made available for inspection. These records are what make the traceability system work during a disease investigation.
VDACS maintains electronic records of all official identification tags distributed and related regulatory information, including regulatory test and vaccination activities, interstate health certificates, and livestock premises registration. As a producer, you are expected to keep parallel records on your end.
Official animal identification and buyer-seller records must be collected and maintained for 5 years. This applies to livestock markets and dealers, and the same five-year standard is the practical benchmark for producers to follow for their own herd records.
For each officially identified animal, your records should include:
- The full 15-digit AIN (840 number) printed on the tag and encoded electronically
- Date the tag was applied — required if you retag an animal that previously had a visual-only tag
- Species, breed, sex, and approximate age of the animal
- Your Premises Identification Number (PIN) linked to the location where the animal is kept
- CVI numbers and dates for any interstate movements
- Buyer and seller information for any sales or transfers
If you apply a new EID tag to an already officially identified animal, you must record both tag numbers and the date the new tag was applied. This is especially relevant for cattle that carried a grandfathered visual-only tag and later need retagging due to tag loss.
A premises ID number supports animal disease traceability in Virginia. It ensures faster response and containment in the event of a disease outbreak and is critical for maintaining public and animal health. Keeping your PIN active and your records current is the backbone of that system.
For a broader look at how Virginia regulates livestock movement and transport, see transporting livestock laws in Virginia. Producers in neighboring states can also explore ear tag and trailer requirements in Missouri, Kansas, Oklahoma, and Wisconsin for comparison.
Questions about Virginia’s Animal Disease Traceability Program can be directed to Richard Odom at VDACS: 804.692.0600 or richard.odom@vdacs.virginia.gov. For federal-level questions about the 840 RFID rule, contact USDA APHIS or email traceability@usda.gov.