Guam Cannabis Laws for Travelers

Possession limits, transport rules, and where you can legally consume in Guam.

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Adult-Use Legal

Quick Facts

Public Possession

1 oz (28.5g) flower; 8g concentrate

Home Possession

Up to 6 oz; 6 plants (3 mature) per household

Transport Rules

Cannabis cannot leave Guam — all flights from A.B. Won Pat International Airport are federal jurisdiction. Do not bring cannabis to any other US territory or the mainland. Guam's location in the western Pacific means international travel is common; cannabis is strictly prohibited on international routes.

Medical Reciprocity

No Reciprocity

Guam does not recognize out-of-state medical cannabis cards. Adult-use retail is available to any 21+ visitor with valid government ID.

Dispensaries & Purchasing

Licensed adult-use dispensaries operate on Guam following the Joaquin KC Concepcion II Compassionate Cannabis Use Act and subsequent adult-use legalization. Retail infrastructure is developing; dispensary availability may be limited compared to mainland legal states.

Purchase limit: 1 oz flower or equivalent concentrate per transaction

Where You Can Consume

Illegal in public spaces, vehicles, hotels (unless designated), beaches, and tourist attractions. Consumption is permitted only in private residences with owner's permission.

Key Facts for Travelers

Adult-use legal since 2019 — one of the first US jurisdictions to legalize
Any 21+ adult with valid ID can purchase from a licensed dispensary
No cannabis on flights — A.B. Won Pat International Airport is federal jurisdiction
No public consumption — beaches and tourist areas are off-limits
International proximity: do not attempt to bring cannabis to Japan, Philippines, or other nearby countries

Never Cross State Lines with Cannabis

Transporting cannabis across any state line is a federal crime under the Controlled Substances Act, regardless of laws in both states. This applies to driving, flying, and mailing. Penalties range from fines to felony charges.

Frequently Asked Questions

Can tourists buy cannabis in Guam?

Yes — any adult 21+ with valid government-issued ID can purchase from a licensed Guam dispensary. No residency requirement.

Can I bring Guam cannabis back to the US mainland?

No. All flights from Guam are federal jurisdiction — bringing cannabis aboard any flight is a federal offense.

Is public consumption allowed in Guam?

No. Public consumption is prohibited. Beaches, parks, hotels (unless designated), and tourist areas are all off-limits. Consume only in a private residence.