Hawaii enforces some of the strictest equine import rules in the United States, and the Coggins test sits at the center of those requirements. Whether you are shipping a horse to the islands for the first time or managing an existing equine operation in the state, understanding how Equine Infectious Anemia (EIA) regulations work in Hawaii can mean the difference between a smooth arrival and a horse being turned away at the port.
This guide walks you through every stage of Hawaii’s EIA and Coggins test framework — from what the disease is and which animals must be tested, to what happens when a horse tests positive and what penalties apply for non-compliance.
Pro Tip: Always contact the Hawaii Department of Agriculture’s Division of Animal Industry at (808) 483-7100 or email HDOAIC@hawaii.gov well before your planned shipment date. Requirements can be updated on short notice, and Hawaii has some of the most detailed pre-entry paperwork of any state.
What Is Equine Infectious Anemia (EIA) and Why It Is Regulated in Hawaii
Equine Infectious Anemia is a blood-borne viral disease that affects all members of the equine family. The Coggins test is a blood test used to identify the presence of antibodies for equine infectious anemia, a potentially fatal disease with no current treatment available. Because there is no vaccine and no cure, prevention through testing and movement control is the only tool available to protect horse populations.
EIA is most often transmitted by biting flies — tabanids such as horse and deer flies are considered the most significant transmitters. These flies transmit EIA by taking a blood meal from an EIA carrier and then passing that infected blood to a non-infected horse. Other modes of transmission include the use of contaminated equipment such as used needles and syringes, mare-to-foal transmission in utero, and through natural breeding.
While certain equines may carry the virus without displaying any outward signs, others may exhibit pronounced symptoms such as irregular heartbeats, edema in the legs and abdomen, lethargy, anemia, elevated body temperature, and, in severe cases, sudden death. Hawaii regulates EIA aggressively because the state is geographically isolated and has historically been free of many equine diseases present on the mainland. Allowing an infected animal to enter without proper testing could introduce a disease that would be extremely difficult to contain on islands with a limited equine veterinary infrastructure.
Under Hawaii’s administrative code, “Equine Infectious Anemia (EIA)” is defined as swamp fever, and the term “horses” legally includes mules and asses for the purpose of these regulations. That broad definition matters because it determines which animals fall under the testing mandate.
Which Animals Require a Coggins Test in Hawaii
To import any equid — horses, donkeys, or mules — into Hawaii, specific requirements must be met prior to entry. The EIA testing obligation applies to the entire equid family, not just horses in the traditional sense. If you are bringing a mule or a donkey to the islands, the same Coggins test rules apply.
Donkeys, while susceptible to EIA, often do not exhibit clinical symptoms, possibly due to the low viral load of the disease in their blood compared to infected horses. Similarly, mules appear less likely to develop severe symptoms, and infection may go unnoticed without close observation. This makes testing even more important for these animals, since clinical signs alone cannot be relied upon to identify carriers.
The testing requirement is not limited to animals being permanently relocated. Any equid entering Hawaii — whether for competition, breeding, temporary use, or permanent residence — must comply with the pre-shipment EIA testing window and all associated documentation requirements before it is eligible for entry.
Important Note: Hawaii’s regulations use the term “equid” broadly. If you are transporting a zebra or other exotic equine, contact the Hawaii Department of Agriculture directly to confirm whether additional requirements apply beyond the standard EIA testing framework.
When a Coggins Test Is Required in Hawaii
Timing is one of the most critical elements of Hawaii’s EIA compliance framework. Horses must have a negative Coggins test or other USDA-approved test for EIA within 90 days of shipment. This 90-day window is a firm pre-shipment requirement — a test result that falls outside that window will not satisfy Hawaii’s entry rules, regardless of how recently the animal was last tested.
A Certificate of Veterinary Inspection (CVI) must be issued by a licensed, USDA-accredited (Category II) veterinarian, and that CVI must be issued within seven days of shipment. The original CVI — not a copy — must travel with the horse during transport. It is the responsibility of the owner or authorized agent to present a complete, legible, original hardcopy of the Certificate of Veterinary Inspection at entry inspection.
Beyond the pre-shipment test, Hawaii imposes a second testing requirement after the horse arrives. Horses must be tested for Equine Infectious Anemia between 45 and 60 days after arrival. Testing and sample collection must be conducted by a licensed, USDA-accredited (Category II) veterinarian in Hawaii, and samples should be submitted to the Hawaii State Veterinary Laboratory for processing.
Isolation from other equines is required until post-arrival testing is complete. This post-arrival isolation period is not optional — it is a mandatory condition of entry and applies from the moment the horse lands until a negative 45–60 day retest result is confirmed.
How the Coggins Test Works and Approved Testing Methods in Hawaii
The Coggins test has been the standard diagnostic tool for EIA for decades. To perform a Coggins test, a licensed veterinarian must draw blood from the horse and send it to an accredited lab for analysis. The lab conducts a test to detect the EIA antibody — a protein that will only be present if the horse has had the EIA virus — and then provides either a positive or negative result back to the veterinarian.
Two laboratory methods are approved for official EIA testing in the United States. The AGID (Agar Gel Immunodiffusion) method returns results in 24–48 hours. The ELISA (Enzyme-Linked Immunosorbent Assay) is faster but requires AGID confirmation if the initial result is positive. The ELISA test takes less than an hour but can be less specific, creating the potential for a false positive. If a horse has a positive ELISA, a second test run by AGID will be used to confirm whether the horse truly has EIA.
All test kits used for EIA testing must be approved by the USDA’s Center for Veterinary Biologics (CVB), and laboratories must follow USDA/APHIS guidelines to maintain their approval for performing EIA testing. Only a Category II federally accredited veterinarian, state animal health official, or federal animal health official may submit samples for EIA testing. This means you cannot self-collect a blood sample and send it directly to a lab — an accredited veterinarian must be involved at every step.
For Hawaii-bound horses, the post-arrival retest sample must be submitted to the Hawaii State Veterinary Laboratory. If your veterinarian submits samples to a laboratory other than the Hawaii State Veterinary Laboratory, they are required to forward copies of the results to the state, and isolation from other equines is required until post-arrival testing is complete.
Pro Tip: Schedule your pre-shipment veterinary appointment 7–10 days before departure. This gives enough time for Coggins lab results to come back while ensuring the CVI remains valid for the entire shipping process. For performance horse breeds competing on tight event schedules, cutting this timeline too close is a common and costly mistake.
Interstate Movement and Import Requirements in Hawaii
Shipping a horse to Hawaii is unlike interstate horse transport to any other state. Hawaii — with import permits from the Hawaii Department of Agriculture — has some of the strictest requirements in the country. Because horses arrive by air rather than by trailer, every document must be in order before the animal boards a flight.
The full pre-shipment checklist from the Hawaii Department of Agriculture (as of November 2025) includes the following requirements:
- Negative EIA test: A negative Coggins test or other USDA-approved test for EIA within 90 days of shipment.
- Encephalomyelitis vaccination: Horses must be vaccinated by a licensed, USDA-accredited (Category II) veterinarian with a USDA-approved equine encephalomyelitis vaccine effective against types present in the area of origin. A minimum of 15 days must pass following the final vaccination dose before the horse is eligible for shipment.
- Tick treatment: Horses must be treated under the supervision of a veterinarian with an approved pesticide at a concentration effective to kill ticks within 7 days of shipment.
- Certificate of Veterinary Inspection: A CVI must be issued by a licensed, USDA-accredited (Category II) veterinarian and issued within seven days of shipment.
State veterinary officials also require that the CVI be issued within seven days prior to shipping. It is important that shippers have the original CVI on hand, as many states — including Hawaii — do not accept copies. Additional disease-status statements may be required depending on conditions in the state of origin. For example, if Vesicular Stomatitis is active in the origin state, supplemental declarations must appear on the CVI.
Equids not meeting pre-entry requirements may be refused entry into the state and returned to their point of origin at the importer’s expense. This is not a theoretical risk — Hawaii’s island geography means there is no option to simply turn around and drive home. Refusal at the airport is a serious and expensive outcome.
If you are also interested in other animal-related regulations in Hawaii, the state’s fishing license requirements and hunting license requirements follow similarly detailed frameworks managed by state agencies.
What Happens When a Horse Tests Positive in Hawaii
A confirmed EIA positive result — whether detected during pre-shipment testing or the mandatory post-arrival retest — triggers an immediate regulatory response. If a horse has a positive ELISA test, a secondary test is required via the AGID method. If that result is also positive, state authorities must be informed. At that point, the matter moves from the veterinarian’s hands to state and federal animal health officials.
The insidious and subclinical nature of EIA infection means infected animals are not recognized or removed from the population and can silently pass the disease to nearby horses. Most EIA reactors are humanely destroyed, although the option for lifelong quarantine does exist in some states. Hawaii’s geographic isolation makes the calculus around positive animals especially serious — an EIA-positive horse on the islands presents a containment challenge that does not exist in the same way on the mainland.
When a positive result is confirmed, the state veterinarian’s office takes the lead on determining next steps. The owner is notified, and the horse is placed under immediate quarantine pending further review. Epidemiological tracing may be initiated to identify other animals that were in contact with the positive horse during the incubation period, which can extend the quarantine to additional animals on the same premises.
Quarantine, Euthanasia, and Isolation Rules in Hawaii
The two outcomes available to owners of EIA-positive horses are stark: the only two available options when a horse is confirmed positive are life-long quarantine or euthanasia. There is no treatment, no recovery, and no path back to a negative status once a horse is confirmed as an EIA reactor.
Horses that test positive for EIA must be quarantined at least 200 yards from other equines for the rest of their lives to minimize chances of outbreaks, or they may be humanely euthanized. The 200-yard separation requirement exists because EIA is transmitted from one horse to another through the bites of mosquitoes and flies that have previously fed on an infected animal, and unlike many diseases, direct contact with an infected horse is not required for transmission, making containment challenging.
In practice, a quarantined horse would have very strict regulations and could never be in contact with any other horses. Owners would be taking an extreme risk housing an EIA-positive animal, and in nearly every case, officials will recommend euthanasia to keep the general population of horses safe.
For horses that arrived in Hawaii and test positive during the mandatory 45–60 day post-arrival retest, the isolation requirement that was in place since arrival becomes a formal quarantine. At-home isolation from other equids is required until post-arrival testing is complete. If the retest returns a positive result, that isolation transitions immediately into the full regulatory quarantine protocol under state and USDA oversight.
Exposed horses — those that shared a premises or had documented contact with a confirmed positive animal — are also subject to quarantine and retesting. Potentially exposed horses on the home premises will remain under quarantine until their 60-day retest is completed. This means a single positive result can place an entire barn under movement restrictions for two months or more.
Important Note: Hawaii has no EIA-positive horses on record as an established endemic population, which is part of why the state enforces such rigorous import testing. Maintaining that disease-free status depends entirely on pre-shipment and post-arrival testing compliance from every person importing an equid.
Penalties for Non-Compliance in Hawaii
Attempting to bring a horse into Hawaii without the required EIA documentation — or falsifying test results — carries real legal and financial consequences. Crossing state lines with a horse is required to have a Coggins test for each horse being transported. Depending on the state, owners can face fines of up to $25,000 or more per horse.
At the state level, Hawaii’s regulatory authority over animal imports flows from Hawaii Revised Statutes Chapter 142 and the Hawaii Administrative Rules (HAR) Title 4. Violations of import requirements — including failure to have a valid negative Coggins test, failure to present original documentation, or failure to comply with post-arrival isolation and retesting — can result in:
- Refusal of entry and return of the animal to the point of origin at the owner’s expense
- Mandatory quarantine at the owner’s expense until compliance is achieved or the animal is removed
- Civil fines under state agricultural law for violations of animal disease control regulations
- Potential criminal liability for knowingly transporting a diseased animal or submitting fraudulent health documentation
Equids not meeting pre-entry requirements may be refused entry into the state and returned to their point of origin at the importer’s expense. The cost of return shipping an animal from Hawaii is substantial, and that financial risk falls entirely on the owner or authorized agent who failed to meet the requirements.
Beyond the regulatory penalties, moving a horse without a valid Coggins test creates liability exposure if the animal is later found to be EIA-positive and has been in contact with other horses. Mandating proof of a negative Coggins test before travel or participating in an event helps prevent the spread of EIA across regions or among horse populations, protecting not only individual animals but also the economic interests and public confidence in equine-related activities.
For anyone managing horses in Hawaii or planning to import one, the safest approach is to work directly with a licensed, USDA-accredited Category II veterinarian who is familiar with Hawaii’s specific requirements. Contact the State Veterinarian’s office for the most current regulations well in advance of travel to ensure you are fully prepared and do not encounter problems upon arrival. You can also review the Hawaii Department of Agriculture’s livestock import page for the most up-to-date official guidance.
Hawaii’s equine regulations exist within a broader framework of strict biosecurity standards that protect the state’s unique animal population. If you are interested in learning more about Hawaii’s wildlife and animal life, explore our guides on jellyfish in Hawaii, spiders in Hawaii, butterflies in Hawaii, and bees in Hawaii.