Chicago Import Quarantine: USDA Horse Import Rules at O'Hare Explained

Chicago Import Quarantine (CIQ) is a USDA-approved, privately owned horse quarantine facility in West Dundee, Illinois that serves Chicago O'Hare International Airport as an entry point for horses arriving from other countries. Under United States Department of Agriculture Animal and Plant Health Inspection Service (USDA APHIS) rules, imported horses must clear a mandatory quarantine — typically a minimum of 3, 7, or 60 days depending on the disease status of their country of origin — before they can leave the airport area.

If you're searching "chicago import quarantine," you're almost certainly trying to import or export a horse through O'Hare, or trying to verify that a facility you've been quoted is legitimate. This guide walks through what CIQ is, why it's allowed to operate at O'Hare at all, how long quarantine actually takes, what it costs in 2026, and what happens after your horse is released into Illinois.

What Is Chicago Import Quarantine (CIQ)?

Chicago Import Quarantine describes itself as a USDA-approved import and export quarantine facility located at 37W789 Binnie Rd, West Dundee, Illinois — roughly 40 miles northwest of O'Hare — and says it has operated since April 2011, when it received six European horses traveling to compete at the Rolex championships (Chicago Import Quarantine, accessed 2026). The facility is privately owned and handles horses exclusively: racehorses, breeding stallions, and sport/equestrian horses of "all breeds," according to its own site.

CIQ is not a federal government facility. That distinction matters, because it explains both why the facility exists and what it can and cannot legally accept.

Why O'Hare Can Be Used Instead of the Federal Port in New York

Federal regulation 9 CFR § 93.303 designates Newburgh, New York as the primary U.S. air and ocean port where horses must enter the country (Cornell Law School Legal Information Institute, 9 CFR § 93.303, 2026). But the same regulation carves out an exception: horses may instead enter at any other international airport designated by U.S. Customs if they will be quarantined at a privately owned, APHIS-approved facility — with one carve-out of its own, that this exception does not apply to horses coming from or transiting a region where African horse sickness is present.

That exception is the legal basis for CIQ's operation at O'Hare. It is also why CIQ cannot accept horses from African-horse-sickness-affected regions; those animals must go through the government-run New York Animal Import Center instead.

Chicago Import Quarantine vs. Federal APHIS Import Centers

USDA APHIS directly operates only two Animal Import Centers in the entire country, and neither is in Illinois:

Both federal centers are described on APHIS's own site as opened decades ago — MAIC in September 2004 and NYAIC in 1980 — and run under direct government biosecurity control, including staff decontamination and incineration of waste (USDA APHIS, Animal Import Centers, 2026). CIQ, by contrast, is a private business that must maintain its USDA approval to keep operating.

How Long Does Horse Import Quarantine Take?

USDA APHIS's own guidance says equine import quarantine runs 3 days, 7 days, or 60 days, with the length set by the animal health status of the country the horse resided in during the 60 days before import, any transit countries, and the purpose of entry (USDA APHIS, Importing Live Equines and Equine Germplasm into the United States, page last modified August 14, 2026). The regulatory detail behind those numbers, per 9 CFR § 93.308 (Cornell Law School, 9 CFR § 93.308, 2026), breaks down as follows.

In practice, most horses coming into O'Hare from disease-status countries such as those in the European Union clear on the shorter end of that range, which is why a facility like CIQ — built around 3-to-7-day stays — can operate as a standalone private business.

Step-by-Step: Importing a Horse Through Chicago (O'Hare + CIQ)

1. Confirm the USDA import permit and health paperwork. Most equine imports require a USDA import permit and an original veterinary export health certificate issued in the country of origin (USDA APHIS, 2026).
2. Reserve quarantine space early. USDA APHIS requires the importer or agent to reserve space at the APHIS-approved facility tied to the port of entry at least 3 business days before arrival; for O'Hare, that means booking directly with CIQ.
3. Arrange air transport and CBP coordination. The horse arrives at O'Hare, where U.S. Customs and Border Protection (CBP) and USDA jointly process livestock entries.
4. USDA port veterinarian inspection. A federal veterinarian examines the horse on arrival, either at the airport or at the quarantine facility.
5. Testing during quarantine. The horse is tested for dourine, glanders, equine piroplasmosis, and equine infectious anemia (unless from Iceland), plus any additional tests APHIS deems necessary for the specific origin country.
6. Pay quarantine and testing fees. Diagnostic testing costs are billed separately from the daily quarantine fee (USDA APHIS, VS Import/Export User Fees, page last updated January 13, 2026).
7. Release on negative results. Once the USDA port veterinarian certifies the horse disease-free, it is released from federal quarantine.
8. Meet Illinois entry rules if the horse stays or moves within the state. A Certificate of Veterinary Inspection and, for production or exhibition horses, an Illinois Department of Agriculture entry permit are still required.

What Does Chicago Import Quarantine Cost in 2026?

As of the USDA APHIS fee schedule under 9 CFR Part 130, last updated January 13, 2026, the federal daily quarantine charge for horses is $586.00 per day for days 1 through 3 and $196.00 per day from day 4 onward ($204.00 per day for miniature horses). These are the government inspection/quarantine fees; CIQ's own boarding, handling, and facility charges are separate and set by the private facility. Diagnostic testing (dourine, glanders, piroplasmosis, EIA) is billed on top of the quarantine fee, not included in it (USDA APHIS, 2026).

For comparison, land-border equine inspection fees are much lower per head: $288 for a non-slaughter horse at a U.S.–Mexico port, $13 for a slaughter horse, $20 for in-bond/transit horses, and $49 for a non-slaughter horse crossing from Canada — reflecting that those are single inspection fees, not multi-day quarantine charges.

After Release: Illinois State Requirements

Clearing federal quarantine is not the end of the paperwork if the horse is staying in, or moving through, Illinois. The Illinois Department of Agriculture requires that all livestock entering Illinois — except animals consigned directly to auction markets, federally approved markets, or slaughter — be accompanied by a Certificate of Veterinary Inspection (CVI) issued by a USDA-accredited veterinarian and valid for 30 days from inspection. Horses entering the state for production or exhibition purposes also need an entry permit obtainable through the department's online system (Illinois Department of Agriculture, Animal Import, 2026). These are state-level rules layered on top of, not a replacement for, the federal USDA APHIS quarantine process at CIQ.

Does CIQ Handle Dogs, Cats, or Other Pets?

No. CIQ's published services cover horses only. Dogs and cats entering the United States are governed by separate U.S. Customs and Border Protection (CBP) and CDC rules — CBP notes that dogs from high-risk countries need proof of valid rabies vaccination, and that cats and dogs generally do not go through USDA animal import centers at all (CBP, Bringing Pets and Wildlife into the United States, 2026). Pet birds are handled at the federal Miami Animal Import Center, not at CIQ.

Quarantine Paperwork vs. Digital Livestock Identity

It's worth being precise about what CIQ and USDA APHIS quarantine actually are: a legally mandated disease-control process built around import permits, veterinary health certificates, and government test results. None of that is a digital ownership record, and none of it is replaced by any private app or ID system.

Separately from that legal process, some horse and livestock owners also keep a private digital record of an animal's identity, health history, and body condition for their own management purposes. Animal Passport is one such tool: it uses a phone-captured photo of an animal's muzzle — a nose pattern that is unique in the way a human fingerprint is — to build a digital record linking owner, breed, an estimated age from a dental photo with a confidence score, and a body condition score from 1–5 based on a side-profile photo, alongside vaccination history. This is a supplementary owner record, not a USDA import permit, a Certificate of Veterinary Inspection, or any government-issued travel document.

The value of that kind of durable, phone-based identity record showed up clearly during the August 2025 livestock flood rescue in Pakistan, when farmers used Animal Passport records to reclaim their animals after paper ear tags had washed away. That is the same underlying problem — paper documents that can be lost, damaged, or destroyed — that CVIs, import permits, and quarantine certificates are also vulnerable to, even though the Illinois and federal processes described above remain the legally required path for bringing a horse across the U.S. border. Owners managing multiple animals across a quarantine and interstate-movement process may find it useful to read more on the Animal Passport blog about how digital identity records are used alongside, not instead of, official paperwork.

Chicago Import Quarantine at a Glance

• What it is: A USDA-approved private horse quarantine facility in West Dundee, IL, serving O'Hare International Airport.
• Operating since: April 2011.
• Species: Horses only — racehorses, breeding stallions, sport/equestrian horses.
• Legal basis for O'Hare entry: 9 CFR § 93.303 exception for privately owned quarantine facilities.
• Typical quarantine length: Minimum 3 days for most origin countries; 7 days for screwworm-affected regions; 60 days (New York center only) for African-horse-sickness-affected regions.
• 2026 federal quarantine fee: $586/day (days 1–3), $196/day thereafter, plus separate testing costs.
• After release: Illinois CVI and, for production/exhibition horses, a state entry permit are still required.

As of September 2026, these figures reflect the most recently published USDA APHIS equine import guidance (updated August 14, 2026) and fee schedule (updated January 13, 2026). Because fees and country-specific quarantine assignments change, importers should confirm current requirements directly with USDA APHIS and CIQ before booking transport.