Most likely, you already uniquely identify your horse through tattoos, color diagrams, or radio frequency identification (RFID) injectable transponders. Now you can take identification one step further and use an NAIS-compliant, RFID injectable transponder.

Using 840 Transponders

NAIS uses International Standards Organization (ISO) compliant RFID injectable transponders, also known as 840 transponders, to identify horses. These transponders use a standardized 15-digit Animal Identification Number, or AIN, that begins with 840, the numeric code for the United States.

To start using 840 transponders, take the following steps:

• Obtain a Premises Identification Number (PIN). Contact your State or Tribal animal health official to obtain a PIN. For further information, go to www.usda.gov/nais/getPIN.

• Order your 840 transponders. Veterinarians, breed registries, and industry organizations may sell 840 transponders or be good contacts for finding local sources for transponders. For more information, go to www.usda.gov/nais/840.

Benefits of Using 840 Transponders

Deciding to use 840 transponders can save you both time and effort. Having one number with many uses is far more efficient than having multiple ID numbers. Following are a few of the ways you can benefit from using 840 transponders.

• Use of 840 transponders helps enhance the ability to respond quickly if an animal disease is detected. Rapid response means movement restrictions can be lifted in a timely manner, reducing the amount of "down time" for exhibitions and sporting events.

• Your PIN and the AIN associated with each 840 transponder may be used on official paperwork such as Certificates of Veterinary Inspection (CVIs) and equine infectious anemia (EIA) tests required for interstate movement.

• The 840 transponders meet the requirements of the ISO and can be used for the international movement of horses.

• Lost or stolen horses can be identified through their 840 transponders. This is especially important in cases of severe natural disasters, like Hurricane Katrina.