Quick summary
Every passenger arriving in Guam must file the island’s Electronic Declaration Form online, up to 72 hours before scheduled arrival; the paper customs card was discontinued on 4 February 2025. One submission covers a family unit in the same household. Guam’s own Visa Waiver Program does not authorise onward travel to the US mainland, which needs an approved ESTA or a US visa.
Guam sits outside the US Customs Territory and runs its own Customs and Quarantine Agency, so a Guam connection is a customs event, not an airside transit. Here is what to file, what happens at the checkpoint, and where the visa rules bite.
On 4 February 2025, Guam replaced its paper customs declaration card with the online Electronic Declaration Form. The rule applies to every arriving passenger. For travelers starting in Micronesia — Pohnpei, Chuuk, Kosrae, Yap, Majuro — Guam is the usual gateway to Honolulu and the US mainland. A connection there means full customs clearance, not airside transit.
The EDF deadline and the mainland visa rules can both trip travelers up.
Cargo processing is changing too, though that timetable reaches passengers only indirectly. Guam’s customs agency signed its UNCTAD ASYCUDA agreement on 18 September 2026, according to the Post Guam.
The facts here hold as of 10 October 2026.
What you must file before landing in Guam
Citizenship and flight origin do not change the form requirement. The Guam Electronic Declaration Form is filed through the Guam Customs and Quarantine Agency’s online EDF portal.
The household rule catches people out. Travelers together on one booking do not necessarily count as one household, so a group of colleagues is not one submission.
The form is a customs declaration, not a landing card. It screens for restricted agricultural items, undeclared currency and prohibited goods. If you carry $10,000 or more in currency or monetary instruments, you must declare it and file FinCEN Form 105.
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What happens at the Guam airport checkpoint
After you deplane, your first stop is the Customs and Quarantine Agency checkpoint. An officer checks the code before you reach the baggage hall.
International arrivals may also pass through CBP biometric screening, separate from Guam’s process. The two are run by different authorities: the EDF belongs to Guam’s Customs and Quarantine Agency, while biometric screening belongs to US Customs and Border Protection.
Guam law bars imports including controlled substances, counterfeit goods and adulterated or misbranded food and drink. Officers can seize them; wildlife imports need US consular certification, according to the legal-information site LegalClarity.
The visa/ESTA trap for onward mainland travel
Guam runs its own Visa Waiver Program, separate from the US Visa Waiver Program. It lets citizens of participating countries enter Guam without a US visa. Visit Guam, the island’s official tourism board, states that continuing to Honolulu, Los Angeles or any other US destination requires an approved ESTA or a US visa.
A traveler who qualifies for Guam’s programme may book a Guam–Honolulu–mainland ticket on that basis. But the Guam authorisation covers Guam only, leaving a separate document requirement for the mainland leg. European travelers transiting a US territory face the same ESTA requirement.
Leaving the airport is not the test. US transit rules apply even to a short connection, and the required approval must be in place before boarding.
Why Guam sits outside the U.S. customs territory
Guam, American Samoa, the US Virgin Islands and the CNMI sit outside the US Customs Territory and each runs its own customs authority, according to the operational guide published by IB. Guam is a US territory, but it is not inside the mainland customs zone. Its authority comes from its own law, 5 GCA Chapter 73, not the US customs code.
The territory’s tax rules follow from that distinction. Guam imposes a 4% use tax on tangible personal property imported for use or consumption on the island, calculated on landed value, according to the legal-information site LegalClarity. Personal bags carried on a flight are exempt; cargo or checked freight travelling with a traveler is not.
The UNCTAD ASYCUDA agreement is meant to replace decades-old paper cargo processing. Public Law 38-109 requires the agency to transmit the executed agreement and a written determination to the Guam Legislature by 18 October 2026. The earlier deadline to promulgate ASYCUDA rules fell on 5 October 2026.
Keeping customs under local control is contested. The US Government Accountability Office found that federalising the agency — folding it into CBP and the US Harmonized Tariff Schedule — could raise import prices on the island, and set out three options including a hybrid model. Governor Lou Leon Guerrero has said Guam does not support federalisation or a transfer of jurisdiction away from the local government. Passenger and cargo fees, unchanged for more than 13 years, provide most of the agency’s funding.
The 72-hour window before you land
Guam’s EDF can be filed only in the 72 hours before scheduled arrival. That gives travelers a practical window opening three days before the flight is due to land.
- File online — complete the EDF through the Guam Customs portal inside the 72-hour window and screenshot the QR code; saving it offline is safer than relying on a live page.
- Check the household rule — one submission covers a family unit in the same household; separate households file separately.
- Confirm your onward document — if the trip continues to the US mainland, verify an approved ESTA or US visa before departure, not at the Guam gate.
- Watch: Guam Customs owes the Legislature its formal ASYCUDA implementation plan by 17 December 2026, the next date that could change passenger processing.
The paperwork is small, and the window is wide enough to file it calmly.
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Questions? Answers.
Do I need a visa to enter Guam from Micronesia?
Guam operates its own Visa Waiver Program, so travelers from participating countries can enter the island without a US visa. What that programme does not do is authorise onward travel to the US mainland; that leg needs an approved ESTA or a US visa.
Do you have to go through customs if you have a connection?
Yes. Guam’s Customs and Quarantine Agency requires the EDF from every arriving passenger regardless of citizenship or travel origin, and the QR code is presented at its checkpoint after deplaning. International arrivals may also pass through CBP biometric screening, a separate process run by a different agency.
Where can I find the Guam Customs Declaration Form?
The form is filed online through the Guam Customs and Quarantine Agency’s EDF portal, reachable from cqa.guam.gov, and can be submitted up to 72 hours before scheduled arrival. It generates the QR code you present at the checkpoint.
Is Guam inside the US customs territory?
No. Guam, American Samoa, the US Virgin Islands and the CNMI sit outside the US Customs Territory and each runs its own customs authority. That is why an arrival from Micronesia clears Guam’s process rather than a mainland CBP one.
