Flying with a Dog from Portugal to United States — Requirements

A free online form completed by the person bringing the dog into the US. Each dog requires a separate form. After submitting, you receive a receipt by email — print it or show it on your phone to US Customs. For dogs from Portugal (a CDC low-risk country), this is the ONLY required document — no rabies certificate, no health certificate, and no USDA endorsement is needed. The receipt is valid for 6 months from the date issued and can be used for multiple US entries from the same departure country. You can complete it on the day of travel or up to 6 months in advance.

Your dog must have a microchip that can be read by a universal scanner. ISO 11784/11785 compliant (15-digit) microchips are recommended. The microchip number will be recorded in your CDC Dog Import Form.

Your dog must be at least 6 months (approximately 180 days) old at the time it arrives in the United States.

Your dog must visually appear healthy when it arrives at the US port of entry. A dog that appears ill may be subject to inspection or denied entry. No veterinary health certificate is required by the US to prove this.