The US Virgin Islands sit on the federal baseline and add their own requirements on top, but for a pet flying in directly from the mainland or Puerto Rico the list is refreshingly short. Mochi needed a correctly ordered microchip and rabies vaccination and a recent health certificate, with no import permit, no titer test and no quarantine. The dates are what need care.

Pet import to US Virgin Islands is overseen by the national veterinary authority. Confirmed against an official source so far: a rabies vaccination and a health certificate. Anything else — commonly a microchip, rabies vaccination and health certificate — is not yet confirmed for US Virgin Islands against an official source, so it's flagged in the table below rather than assumed.

Who sets the rules here

US Virgin Islands applies the rules of the United States as its baseline, and adds requirements of its own on top.

Official source
doa.vi.gov
Relationship to the United States
inherits, plus local rules

How US Virgin Islands handles your pet

All animals entering the US Virgin Islands, that originate from outside of the United States or Puerto Rico, are subject to U.S. Virgin Islands regulations as well as federal import regulations and inspection from the USDA Animal and Plant Health Inspection Service.

Each fact comes straight from the operator’s published policy. Tap the to read the exact wording; the opens the source page.

Health & documents

Quarantine · Required Noverified 2026-10-03
Rabies titer test (FAVN) · Test validity months12 monthsverified 2026-07-22
Rabies titer test (FAVN) · Approved laboratory required Yesverified 2026-10-03
Rabies titer test (FAVN) · Test must follow vaccination days30 daysverified 2026-08-01
Import permit · Required Noverified 2026-07-22
Health certificate · IssuerUSDA-accredited veterinarianverified 2026-10-03
Health certificate · Required Yesverified 2026-07-22
Health certificate · Endorsed byUSDA-accredited veterinarian (APHIS 7001, official state CVI, or NASAHO-approved eCVI)verified 2026-10-03
Health certificate · Validity days10 daysverified 2026-07-22
Health certificate · Government endorsed Yesverified 2026-10-03
Rabies vaccination · Required Yesverified 2026-10-03
Rabies vaccination · Waiting period after vaccination10 daysverified 2026-07-22

Other rules

Pets accepted Acceptedverified 2026-10-03

Service & assistance animals

Recognized Yesverified 2026-08-28

Timing chain

Day -10 rabies vaccine deadline · Day -10 health certificate issued · Day 0 arrive at customs

The microchip must be implanted before the rabies vaccine is given, or the vaccine is treated as invalid. That is checked against the dates on the paperwork, so an animal vaccinated before it was chipped has to be revaccinated, and the health certificate cannot certify a valid rabies status until that second vaccination is on record.
For animals travelling directly from the United States or Puerto Rico, the health inspection and certificate must be completed by an accredited veterinarian within 10 days of travel. That window is the main cost risk: a delayed flight can push the certificate past its limit and mean paying for a second inspection, so the vet visit belongs close to a confirmed departure date.
Mochi's trip to St Thomas was one of the easier ones, and the reason was order rather than luck. Microchip first, rabies vaccination second, then the health certificate inside its 10-day window, then the flight. No permit, no titer test, no quarantine for that route. Build the plan around the certificate date and confirm the rules if you are arriving from outside the US.
Get YOUR personalized plan for US Virgin Islands →

Glossary

ISO chip
ISO 11784/11785 — the universal microchip standard.
FAVN
Fluorescent Antibody Virus Neutralization — a rabies serology test required by rabies-free destinations.
Brachycephalic
Snub-nosed breeds (French Bulldogs, Pugs, Persians, Himalayans) with restricted airline acceptance due to heat-stress risk.
AVIH
Animal Vehicle In Hold — IATA's term for cargo pet shipment, with fees that vary by carrier and route.