Livestock Microchipping Laws in Nevada: What Producers Need to Know

If you raise cattle, pigs, sheep, goats, or horses in Nevada, you have probably asked whether a microchip is enough to satisfy state and federal identification rules — or whether you still need an ear tag. The answer depends on the species, the purpose of movement, and which regulatory layer you are dealing with: Nevada Department of Agriculture (NDA) rules, USDA-APHIS Animal Disease Traceability (ADT) requirements, or both at once.

This guide walks you through every layer so you can make confident decisions at branding time, before a vet signs a Certificate of Veterinary Inspection (CVI), and whenever you move animals across a district line or a state border.

Pro Tip: Before ordering any identification device, register your premises with the NDA. A Premises Identification Number (PIN) is required before 840-series microchips or RFID tags can be legally activated for official use.

Microchipping vs. RFID Ear Tags: What Counts as Official ID in Nevada

The terms “microchip” and “RFID” are often used interchangeably in casual conversation, but they describe different physical forms of the same underlying radio-frequency technology. An RFID ear tag is clipped to the animal’s ear and can be read from a distance. A microchip is an implantable transponder injected under the skin or into muscle tissue. Both can carry an 840-series Animal Identification Number (AIN), but they are not interchangeable for every species or every regulatory purpose in Nevada.

Nevada’s Livestock Identification program, under the NDA Division of Animal Industry, protects against livestock theft through the recording of brands and brand inspection procedures, which are required each time livestock change ownership, are shipped out of state, or cross a brand inspection district boundary. Brand inspection is the primary proof-of-ownership mechanism for cattle in Nevada, and it operates alongside — not instead of — official electronic identification.

For cattle entering Nevada, official ear tags must be metal (NUES) or 840-compliant (RFID or visual). A standard implanted microchip does not replace an ear tag for cattle. For other species, the rules differ significantly, and microchips do qualify as official ID under specific conditions outlined below.

Key Insight: “Official ID” in Nevada means an identification device that meets both NDA import requirements and USDA-APHIS ADT standards. A device that satisfies one layer but not the other is not sufficient for interstate movement.

The Federal RFID Mandate and What It Means for Nevada Producers

The federal regulatory backdrop matters enormously for Nevada ranchers because it sets the floor that state rules must meet. The updated Animal Disease Traceability (ADT) regulations, effective November 5, 2024, aim to enhance the nation’s ability to respond to and mitigate the impact of foreign or significant diseases affecting livestock.

Cattle tags applied after November 5, 2024, must be both visually and electronically readable (RFID). Visual tags, such as official metal clip tags applied before November 5, 2024, are still accepted as official IDs; however, tags applied after that date must be electronically readable in addition to being visually readable.

The pending requirement narrows in on sexually intact cattle and bison that are 18 months of age or older, all dairy cattle, and any cattle or bison used for rodeo or recreation events. If your operation fits any of those categories and you move animals interstate, you need a dual-readable RFID ear tag — not a microchip — on each covered animal.

To support implementation, the USDA will continue to prioritize funding to offer no-cost electronic IDs for cattle moving interstate, aiming to reduce the financial burden on producers and encourage compliance. The NDA is currently issuing low-frequency RFID tags, which may be requested by a producer’s veterinarian and can either be shipped or picked up at one of the NDA’s office locations.

On the swine side, USDA APHIS announced a new initiative to provide no-cost RFID eartags for swine beginning fall 2025. These tags are available for sow and exhibition swine producers, who can order them through the Merck Animal Health website at www.840swinetags.com once the program launches. Nevada pork producers should watch the USDA APHIS traceability page for ordering details as they become available.

Important Note: The federal ADT rule covers cattle and bison moving interstate. Swine, sheep, goats, and equines are governed by separate USDA programs (Scrapie, Trichinae, etc.) with their own identification rules. Check species-specific requirements before any interstate shipment.

Which Livestock Can Use a Microchip as Official Identification in Nevada

Nevada’s import requirements and USDA device standards together determine which species may use an implanted microchip as official ID. The answer is not the same for every animal on your operation.

Pot-bellied and other swine: All pigs must be officially identified with either an 840 ear tag, NUES tag, PIN tag, tattoo, registry tattoo, or registered ear notch with the ID listed on the CVI. Pot-bellied pigs can be identified using a microchip, but the chip number must be written on the CVI. This is the clearest microchip-as-official-ID pathway for swine entering Nevada.

Equines: 840 AINs are available in microchip implants for equine and other species. Horses, mules, and donkeys are not covered by the cattle/bison RFID ear-tag mandate, making the implanted 840 microchip a practical and widely accepted form of official identification for equines moving interstate. Annual and lifetime horse transportation permits are available and are honored in all western states. You can obtain these permits through your local brand inspector or the NDA’s Elko office.

Sheep and goats: All goats need to be officially identified using scrapie tags, and all tags must be listed on the CVI. All sheep need to be officially identified with scrapie tags, and all scrapie tags need to be listed on the health certificate. An 840-series RFID microchip implant is an approved scrapie identification device for small ruminants, but it must carry a valid 840 AIN and be linked to your premises and flock ID. The 840-ID Official Microchip can be used in all equines, goats, sheep, alpaca, llama, elk, whitetail and other deer, etc.

Cattle and bison: Implanted microchips are generally not accepted as official ID for cattle or bison under either Nevada import rules or the federal ADT program. The required device is a dual-readable RFID ear tag for animals tagged after November 5, 2024. See the section on interstate movement below for the narrow exceptions that apply.

For a broader look at how Nevada handles livestock transport across the board, see our guide on transporting livestock laws in Nevada.

When a Microchip Qualifies for Interstate Movement in Nevada

Interstate movement triggers the strictest identification requirements because it activates federal ADT rules on top of Nevada’s own import requirements. Whether a microchip qualifies depends on species, age, reproductive status, and destination.

• Equines moving interstate: An ISO-compliant 840 microchip implant is accepted as official identification for horses, mules, and donkeys. The chip number must appear on the ICVI (Interstate Certificate of Veterinary Inspection).
• Pot-bellied pigs moving interstate: A microchip is accepted, but the chip number must be recorded on the CVI as noted above.
• Sheep and goats moving interstate: An 840 RFID microchip implant qualifies as a scrapie official ID device when linked to a valid flock/premises ID, with the number listed on the CVI. A USDA-assigned tattoo is acceptable if linked to a scrapie premise/flock and listed on the CVI, and breed registry tattoos are acceptable if accompanied by the registry certificate with the certificate number written on the CVI. Microchip implants offer a permanent alternative to these options.
• Cattle and bison moving interstate: Microchips do not satisfy the federal RFID ear-tag requirement for covered classes of cattle and bison. All sexually intact beef cattle 18 months of age and older require official identification, and their official ID must be recorded on the CVI. That ID must be a dual-readable RFID ear tag if applied after November 5, 2024.

The movement of animals across state lines requires official identification to effectively manage and contain disease outbreaks. Accurate and timely movement data is critical for minimizing the size and scope of these events. Always have your accredited veterinarian confirm the correct ID type before issuing a CVI, because a mismatch can result in an animal being turned back at the state line.

If your operation also spans other states, our articles on transporting livestock laws in Colorado and transporting livestock laws in Idaho cover the neighboring-state rules you will need to cross-reference.

Pro Tip: Request entry permits through the NDA’s online Entry Permits System before moving any animal into Nevada. CVIs are valid for 30 days from the date of issuance. Fax or email your CVI to [email protected] before submitting online to avoid delays at the border.

Approved Microchip Standards and Placement by Species in Nevada

Not every microchip on the market qualifies as official USDA identification. The chip must meet specific technical and numbering standards to be accepted by Nevada and federal officials.

The 840 AIN standard: The “840” chips are used for official USDA identification to comply with USDA-APHIS and Scrapie regulations. The chip numbers begin with the official United States country code of 840. A 15-digit number in the format 840XXXXXXXXXXXX is the required structure. Approved devices for EIDs include 134.2 kHz LF RFID tags compliant with both the ISO 11784 and 11785 standards, or UHF RFID tags. Microchip implants for equine and small ruminants use the same 134.2 kHz low-frequency ISO standard.

Placement guidelines by species:

Species	Accepted Microchip Form	Common Implant Site	Notes
Horses / Mules / Donkeys	840 ISO LF implant	Left side of the neck, nuchal ligament	Must appear on ICVI; annual/lifetime transport permit available in NV
Sheep / Goats	840 ISO LF implant or RFID ear tag	Base of left ear (implant) or left ear (tag)	Flock/Scrapie ID required before ordering 840 devices
Alpacas / Llamas	840 ISO LF implant	Left side of the neck	Must be linked to a premises ID
Pot-bellied Pigs	Any microchip (number on CVI)	Neck or ear base	840 chip preferred; chip number must be recorded on CVI
Cattle / Bison	Not accepted as official ID	N/A	Dual-readable RFID ear tag required for interstate movement (post Nov. 5, 2024)

RFID tags are recommended to be placed in the left ear for cattle, and the same left-side convention is broadly followed for implantable devices across species to simplify scanning during inspections. Always confirm placement with your accredited veterinarian, as improper placement can cause a chip to migrate and fail to scan at a port of entry.

You can review the full list of APHIS-approved identification devices at the USDA APHIS official eartag criteria document. For species-specific scrapie tag rules, the USDA APHIS scrapie tag page is the authoritative reference.

Registering a Livestock Microchip in Nevada

Implanting a chip is only the first step. The chip number has no legal value until it is linked to a registered premises and recorded on the appropriate documentation. Nevada producers must complete two separate registration steps before a microchip functions as official ID.

Step 1 — Obtain a Premises Identification Number (PIN): To use 840 chips, you must have a Premises ID. To get your Premises ID, visit the USAHA state animal health office locator or call your state veterinarian’s office. In Nevada, contact the NDA Division of Animal Industry at [email protected] or by calling the Sparks office. Your PIN ties every chip or tag bearing your 840 AIN back to your specific location, which is what makes rapid disease traceback possible.

Step 2 — Obtain a Flock/Scrapie ID (sheep and goat producers only): If you raise goats or sheep, you must also have a Flock/Scrapie ID. To request official sheep and goat tags, a flock or premises ID, or both, call 1-866-USDA-Tag (866-873-2824). A national premises ID is also required to purchase official 840 RFID tags or implantable devices.

Step 3 — Record the chip number on all movement documents: Once implanted, the chip number must appear on every CVI, entry permit, and brand inspection record associated with that animal. Increased acceptance and usage of digital ICVI programs such as GVL and VSPS has greatly increased the NDA’s ability to trace animals in real time without a manual search of paper records. Using a digital CVI platform like GlobalVetLink ensures that your electronic ID data flows directly into the NDA’s traceability system.

The Animal Identification Management System (AIMS) is a web-based program used to administer official animal identification numbers and devices. All distribution records for AIN devices are maintained on AIMS. Your veterinarian or the NDA can confirm that your chip’s AIN is properly recorded in AIMS after implantation.

Nevada producers dealing with brucellosis compliance alongside microchipping should also review the rules covered in our article on brucellosis laws in Nevada, since brucellosis vaccination tags interact with official ID requirements for heifers.

Microchipping as Proof of Ownership in Nevada

Nevada’s primary proof-of-ownership system for cattle is the brand, not the microchip. The Livestock Identification program protects against livestock theft through recording of brands and brand inspection procedures, which are required each time livestock change ownership, are shipped out of state or out of a brand inspection district, or prior to slaughter. The Division employs POST-certified peace officers who patrol roadways and are authorized to stop vehicles carrying livestock to check for proof of ownership and livestock health requirements.

For cattle, a microchip alone will not satisfy a brand inspector. You need a valid brand inspection certificate or a livestock movement permit. All permanent brands in Nevada expire at the same time every five years; as of 2026, all brands expire December 31, 2027, and the next five-year brand recording period will run from 2028 to 2032.

For species where brands are not the norm — horses, pot-bellied pigs, goats, sheep, alpacas — a microchip with a recorded 840 AIN provides a strong, permanent ownership link that is harder to tamper with than an ear tag. In a theft or dispute scenario, a veterinarian or brand inspector can scan the chip and match it to your premises registration, your CVI history, and any bill of sale on file.

The USDA has documented that electronically recorded ID and movement data can drastically reduce the time needed to locate an animal among millions of data points to under an hour. That speed advantage applies equally to theft recovery as it does to disease traceback, making microchipping a practical investment even when it is not strictly required by state law.

Important Note: A microchip is a permanent record, but it is only as useful as the registration behind it. Keep your premises registration current with the NDA, update your contact information whenever it changes, and ensure every chip number is recorded on all relevant documents. An unregistered chip number cannot be traced back to you.

For related livestock ownership and movement topics in Nevada, see our guides on goat ownership laws in Nevada, livestock trailer requirements in Nevada, and beekeeping laws in Nevada. If you move animals to neighboring states, our articles on transporting livestock laws in Oklahoma and transporting livestock laws in Missouri provide comparable state-level breakdowns.

The bottom line for Nevada producers: microchips are a legitimate and often permanent form of official identification for equines, small ruminants, and pot-bellied pigs, but they do not replace RFID ear tags for cattle and bison moving interstate. Start with your premises registration, work with an accredited veterinarian to select the right device for each species, and make sure every chip number appears on every document that travels with your animals.