Livestock Microchipping Laws in Alabama: What Every Producer Needs to Know

If you raise cattle, horses, goats, sheep, or cervids in Alabama, the question of whether a microchip counts as official identification is not academic — it can determine whether your animals legally cross a state line or change ownership. The rules come from two directions at once: federal USDA-APHIS regulations that set the floor for every state, and Alabama’s own administrative code that adds species-specific requirements on top of that floor.

This guide walks through exactly where microchips fit into Alabama’s livestock identification framework, which species can use them, when they satisfy interstate movement rules, and how to register a chip so it actually holds up as legal ID. If you are also moving animals across state lines, the transporting livestock laws in Alabama article covers the broader documentation requirements that work alongside identification.

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

The terms “microchip” and “RFID” are often used interchangeably, but Alabama law draws a meaningful distinction in how each is applied. Under Alabama Administrative Code Rule 80-3-6-.40, certain livestock must be officially identified whenever a change of ownership occurs within the state. Official identification is defined as a method or device approved by the USDA/APHIS Administrator and the State Veterinarian that assigns a nationally unique number to an animal, traceable by the State Veterinarian to the point of application or subsequent movement.

RFID ear tags are the dominant official ID device in Alabama’s cattle and bison system. In the case of ear tags, the device must bear an official number, the U.S. shield, and be tamper resistant. A subcutaneous microchip — an injectable transponder — is a different form factor but can carry the same official Animal Identification Number (AIN) if it meets USDA standards.

The USDA published a final rule in 2013 establishing regulations for the traceability of U.S. livestock moving interstate. That rule names specific methods of animal identification that are acceptable, including a 15-digit microchip that begins with the designated United States prefix 8-4-0. So a microchip is not automatically official ID — it must carry an 840-series AIN and come from a USDA-approved manufacturer to count under either federal or Alabama rules.

Pro Tip: Before purchasing any microchip for official livestock ID purposes, confirm the chip number begins with “840” and that the manufacturer is on USDA’s approved device list. Non-840 chips used in companion animals do not satisfy livestock traceability requirements.

The Alabama Department of Agriculture and Industries (ADAI) currently provides official RFID tags for show cattle, all livestock markets, and to producers and veterinarians for placement in replacement animals. Official RFID tags are assigned to a premises identification number obtained through the Standardized Premises Registration System (SPRS). Injectable microchips follow the same premises-linkage requirement — the chip number must tie back to a registered premises before it qualifies as official ID.

The Federal RFID Mandate and What It Means for Alabama Producers

The most significant recent shift in livestock identification law is the USDA’s 2024 final rule on animal disease traceability. USDA’s Animal and Plant Health Inspection Service (APHIS) published a final rule on April 26, 2024, requiring eartags to be visually and electronically readable in order to be recognized as official animal identification for the interstate movement of certain classes of cattle and bison, effective November 5, 2024.

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). This effectively ends the era of visual-only metal clip tags for cattle and bison that change hands after that date.

Visual tags, such as official metal clip tags applied before November 5, 2024, will still be accepted as official IDs. However, tags applied after this date must be electronically readable in addition to being visually readable. For Alabama producers, this means any new official ear tag you apply to a qualifying animal must now be an RFID device — and injectable 840 microchips already satisfy the electronic-readability requirement where they are permitted as official ID.

The APHIS final rule affects approximately 11% of the nation’s domestic cattle and bison herd, primarily breeding stock. Feeder cattle and animals moving directly to slaughter are largely exempt, which limits the immediate compliance burden for many Alabama cow-calf operations. Alabama participates in the USDA’s ADT cooperative agreement, meaning the state’s traceability road map aligns with these federal timelines. For context on how neighboring states handle similar requirements, see the transporting livestock laws in Georgia and the transporting livestock laws in Florida.

Important Note: The 2024 federal RFID mandate applies to cattle and bison moving interstate. It does not automatically extend to horses, sheep, goats, swine, or cervids under the same rule — those species have separate identification frameworks described below.

Which Livestock Can Use a Microchip as Official Identification in Alabama

Not every species on an Alabama farm can use an injectable microchip as its primary official ID. The rules vary by species, and the distinctions matter when you are completing an Interstate Certificate of Veterinary Inspection (ICVI) or responding to a disease investigation.

Cattle and Bison. Cattle and bison 18 months of age or older must be identified using an approved method of official identification. Official identification must also be applied to all ages of dairy cattle and cattle and bison used in a rodeo, show, exhibition, or recreational event. For these animals, the official ID device is almost universally an RFID ear tag. Injectable microchips are not the standard official device for cattle under Alabama’s current system — RFID ear tags are the primary mechanism, and ADAI distributes them through the premises registration system.

Horses and Other Equines. Equines are where injectable microchips have the clearest official standing. ISO-compliant electronic identification, such as a microchip, is an accepted form of official identification for equines moving interstate. An ISO 11784/11785-compliant 840-series chip implanted in a horse satisfies the federal identification requirement for interstate movement documentation on an ICVI.

Sheep and Goats. The 840-ID microchip is an officially approved microchip for livestock, and the FDA’s Center for Veterinary Medicine has also approved it for use in sheep and goats. However, sheep and goats are subject to the National Scrapie Eradication Program, which adds a layer of requirements. All sheep and goats must be officially identified before a change of ownership by any method, with an exemption for Alabama sheep and goats moving from farm directly to an in-state livestock market or slaughter establishment.

Captive Cervids (Deer and Elk). The 840-ID Official Microchip can be used in all equines, goats, sheep, alpaca, llama, elk, whitetail and other deer, and similar species. Captive cervids in Alabama are subject to chronic wasting disease (CWD) regulations, and a microchip that carries an official 840 AIN is a recognized identification method for these animals. If you manage a deer or elk operation in Alabama, also review the rooster laws in Alabama for context on how the state regulates other agricultural animals.

Swine and Poultry. Swine moving interstate must be accompanied by documentation per 9 CFR § 71.19. Poultry moving through Alabama in interstate travel must be identified by sealed and numbered leg bands. Injectable microchips are not a standard official ID method for either swine or poultry under current rules.

When a Microchip Qualifies for Interstate Movement in Alabama

Having a microchip in your animal is not enough on its own — the chip must be the right type, carry the right number, and appear on the right paperwork. The persons responsible for animals leaving a premises for interstate movement must ensure that the animals are accompanied by an interstate certificate of veterinary inspection (ICVI) or other document required for the interstate movement of animals.

For equines, a microchip number must appear on the ICVI. A description sufficient to identify the individual equine — including name, age, breed, color, gender, distinctive markings, and unique and permanent forms of identification when present, such as brands, tattoos, scars, or biometric measurements — is required. The microchip number supplements this description and serves as the machine-readable unique identifier on the certificate.

For sheep and goats, the microchip number must also be recorded on any accompanying certificate or owner-shipper statement. The microchip number must be written on any CVI or owner-shipper statement accompanying the animal. Microchips are official for movements between farms, including interstate movements. However, microchips are not official for general auction sales, and animals need an official eartag at those sales.

Alabama also accepts electronic ICVIs. Alabama currently accepts electronic ICVIs provided by GlobalVetLink and AgView. This means your accredited veterinarian can issue a digital health certificate that includes the microchip number, satisfying both the identification and documentation requirements simultaneously. For producers moving animals into neighboring states, check the requirements for those destinations — see the transporting livestock laws in North Carolina and the transporting livestock laws in South Carolina for comparison.

Several exemptions exist where official ID — including a microchip — is not required for interstate movement. Animals moved from the farm of origin for veterinary medical examination or treatment and returned to the farm of origin without a change in ownership are exempt from ICVI requirements. Animals moved from livestock markets directly to slaughter may use backtags and do not need official ID, even if traveling interstate.

Species	Microchip as Official ID?	Interstate Movement Document	Key Restriction
Horses / Equines	Yes — ISO 840 chip accepted	ICVI required	Chip number must appear on ICVI
Sheep & Goats	Yes — USDA 840 chip only	ICVI or owner-shipper statement	Not official at general auction sales
Captive Cervids	Yes — 840 chip accepted	ICVI per 9 CFR Part 77	CWD testing requirements apply
Cattle & Bison	Not standard; RFID ear tag is primary	ICVI required for qualifying animals	EID ear tag required post-Nov. 5, 2024
Swine	No	Per 9 CFR § 71.19	Group/lot ID used
Poultry	No	ICVI or NPIP documentation	Sealed numbered leg bands required

Approved Microchip Standards and Placement by Species in Alabama

Alabama follows the federal standard for microchip specifications. Only chips that carry an official 840 Animal Identification Number and meet ISO 11784/11785 standards qualify as official livestock ID. Only USDA-approved companies are granted permission to manufacture the official 840 microchip. Using a chip from a non-approved source — even if it is ISO-compliant — will not satisfy official ID requirements.

The chip numbers begin with the official United States country code of 840. A 15-digit number starting with 840 is the format you should confirm before any chip is implanted for official purposes. The USDA’s Animal Identification Number Management System (AIMS) maintains distribution records for all AIN devices, and 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.

Placement standards by species, as reflected in USDA’s approved device list, are as follows:

• Equines: The standard implant site is the nuchal ligament in the neck, on the left side of the midline, approximately halfway between the poll and withers. This is the internationally recognized location for equine microchip implantation and the site veterinarians will scan first during an ICVI inspection.
• Sheep and Goats: USDA-approved 840 injectable transponders for sheep and goats are available in mini-microchip format. Implant sites include the base of the ear or the tailhead area; if a microchip is used instead of a tag, the animal’s ICVI or owner-shipper statement should note the implant location (E = base of ear, ET = tailhead).
• Captive Cervids: Deer and elk are typically chipped in the ear or neck area. The chip must carry an 840 AIN and be recorded against the premises’ CWD permit records.
• Cattle and Bison (limited use): Injectable 840 transponders exist for cattle but are not the primary official ID device in Alabama’s system. RFID ear tags remain the standard. Consult ADAI before using an injectable chip in cattle to confirm acceptance by the state veterinarian.

Pro Tip: Always have a compatible ISO reader on hand when using microchips as official ID. If a state inspector or receiving-state veterinarian cannot scan the chip, the identification is functionally unusable regardless of what appears on the paperwork.

Registering a Livestock Microchip in Alabama

A microchip implanted without proper registration provides no traceability value and does not satisfy Alabama’s official ID requirements. Registration happens at two levels: the premises level and, for small ruminants, the flock level.

Step 1 — Obtain a Premises Identification Number (PIN). A premises identification number (PIN) or location identifier (LID) is a unique code permanently assigned to a physical location and is required to purchase official animal identification tags. Each state administers PIN or LID registration. In Alabama, PIN registration is handled through ADAI. Official RFID tags — and by extension, official 840 microchips — are assigned to a premises identification number obtained through the Standardized Premises Registration System (SPRS). Contact the Alabama Department of Agriculture and Industries at agi.alabama.gov or call 334-240-7255 to begin the process.

Step 2 — Obtain a Scrapie Flock ID (sheep and goats only). For goats and sheep, you must have both a Premise ID Number and a Flock (Scrapie) ID Number before ordering 840 microchips. To request official sheep and goat tags, a flock or premises ID, or both, call 1-866-USDA-Tag (866-873-2824). Alabama’s ADAI scrapie program page at agi.alabama.gov/animalindustries/animal-health/scrapie/ also has ordering information and the Alabama Owner/Hauler Statement form for sheep and goat movements.

Step 3 — Purchase chips from a USDA-approved manufacturer. 840 microchip orders cannot ship until Flock and/or Premise IDs are verified. This means the manufacturer will confirm your registration before releasing chips, creating an automatic link between the chip numbers and your premises in the national database.

Step 4 — Record implantation through AIMS. 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 accredited veterinarian or the distributing entity records the chip assignment. Any entity that distributes official ID — including a state, tribe, or accredited veterinarian — must maintain a record for five years of the names and addresses of anyone to whom the devices were distributed.

Producers in Alabama who also manage goat operations should review the goat ownership laws in Alabama for the full picture of state-level rules that interact with the federal scrapie identification program. For producers in neighboring states, the transporting livestock laws in Mississippi and transporting livestock laws in Tennessee outline comparable registration and ID requirements you will need to satisfy as the receiving state.

Microchipping as Proof of Ownership in Alabama

Alabama does not have a standalone livestock microchip registry that functions as a title or deed system. Ownership of livestock in Alabama is established through a combination of brand registration, bill of sale, breed registry certificates, and official ID records — not through microchip registration alone. That said, a properly registered 840 microchip creates a documented paper trail that can be highly useful in ownership disputes, theft recovery, and insurance claims.

Beyond practical everyday use, microchips have been used for prevention of livestock theft, natural disaster recovery of livestock, recovery of stolen animals, and breed registry databases. When a chip number is tied to your PIN through AIMS, any scan of that animal at a livestock market, veterinary clinic, or state inspection point will return your premises as the point of origin — providing strong circumstantial evidence of ownership.

For registered animals, the combination of a microchip number and a breed registry certificate is particularly strong. Goats registered with one of USDA’s approved breed registries do not require tags if not moving through a concentration point or moving in slaughter channels. Registered goats must have a legible registry tattoo and be accompanied by their registry certificate. If your registered animal also carries an 840 microchip, the chip number should appear on the registry certificate for maximum documentation value.

In theft or disaster scenarios, contact ADAI and your accredited veterinarian immediately. The AIMS database can confirm which premises an AIN was assigned to, and that record can support law enforcement investigations or insurance claims. Alabama livestock theft is a criminal offense under Code of Alabama § 13A-8-4, and documented identification — including a registered microchip — strengthens any recovery effort.

Important Note: A microchip alone does not transfer ownership. Any sale or transfer of livestock in Alabama should still be accompanied by a written bill of sale that references the animal’s official ID number, including the microchip number where applicable. Keep copies of all ICVI documents, owner-shipper statements, and purchase records alongside your chip registration paperwork.

Alabama producers who also keep companion animals or mixed-use farm animals should be aware that the livestock microchipping framework is entirely separate from pet microchip registries. The rules discussed here do not apply to dogs or cats — for those, see the dog leash laws in Alabama and related companion animal regulations. For a broader view of how Alabama regulates animals across different contexts, the pit bull laws in Alabama and beekeeping laws in Alabama illustrate how the state approaches different categories of animal ownership.

The bottom line for Alabama livestock producers: a microchip qualifies as official identification only when it carries a USDA 840 AIN, comes from an approved manufacturer, is tied to a registered premises, and appears on the correct accompanying documentation. Get your PIN registered through ADAI before you order chips, work with an accredited veterinarian for implantation and ICVI issuance, and keep your records for the required five-year period. Those steps transform a subcutaneous chip from a management tool into a legally recognized form of official identification.