Travellers need a visa to visit United States for Business or Tourism for more than 180 days. Travellers do not need a visa if staying for 180 days or less.

Travellers who hold United States citizenship in addition to another nationality must enter and exit the United States using a valid United States passport. Entry using a passport from an additional nationality is not permitted.

Travellers need a valid passport to enter United States. The traveller's passport must remain valid throughout the traveller's stay in United States. The passport must have at least 1 blank page.

The Mobile Passport Control (MPC) app allows eligible travellers to submit their travel document, photo, and customs declaration information through a free, secure app on their mobile device. The MPC app streamlines entry into the United States by reducing passport control inspection time.

The MPC mobile app is available to United States citizens, United States lawful permanent residents, Canadian visitors, and returning Visa Waiver Program travellers with an approved ESTA.

The MPC mobile app is currently available at the following locations:

• Abu Dhabi Zayed International Airport (AUH)
• Anchorage International Airport (ANC)
• Atlanta Hartsfield-Jackson International Airport (ATL)
• Aruba Queen Beatrix International Airport (AUA)
• Bermuda L.F. Wade International Airport (BDA)
• Baltimore/Washington International Thurgood Marshall Airport (BWI)
• Boston Logan International Airport (BOS)
• Calgary International Airport (YYC)
• Cleveland Hopkins International Airport (CLE)
• Charlotte Douglas International Airport (CLT)
• Chicago O’Hare International Airport (ORD)
• Dallas/Fort Worth International Airport (DFW)
• Detroit Metropolitan Airport (DTW)
• Denver International Airport (DEN)
• Dulles International Airport (IAD)
• Dublin Airport (DUB)
• Edmonton International Airport (YEG)
• Fairbanks International Airport (FAI)
• Fort Lauderdale-Hollywood International Airport (FLL)
• Halifax Stanfield International Airport (YHZ)
• Honolulu Daniel K. Inouye International Airport (HNL)
• Houston George Bush Intercontinental Airport (IAH)
• Houston William P. Hobby International Airport (HOU)
• John F. Kennedy International Airport (JFK)
• Kansas City International Airport (MCI)
• Las Vegas Harry Ried International Airport (LAS)
• Los Angeles International Airport (LAX)
• Miami International Airport (MIA)
• Miami Seaport
• Minneapolis-Saint Paul International Airport (MSP)
• Montreal Trudeau International Airport (YUL)
• Nassau Lynden Pindling International Airport (NAS)
• Newark Liberty International Airport (EWR)
• Oakland International Airport (OAK)
• Orlando International Airport (MCO)
• Ottawa International Airport (YOW)
• Palm Beach Seaport
• Philadelphia International Airport (PHL)
• Phoenix Sky Harbor International Airport (PHX)
• Pittsburgh International Airport (PIT)
• Port Everglades Seaport
• Portland International Airport (PDX)
• Sacramento International Airport (SMF)
• Salt Lake City International Airport (SLC)
• San Diego International Airport (SAN)
• San Francisco International Airport (SFO)
• San Jose International Airport (SJC)
• San Juan Airport (SJU)
• San Juan Seaport
• Seattle-Tacoma International Airport (SEA)
• Shannon Airport (SNN)
• Tampa International Airport (TPA)
• Toronto Pearson International Airport (YYZ)
• Vancouver International Airport (YVR)
• Winnipeg James A Richardson International Airport (YWG).

Travellers bringing dogs into the United States from countries or regions deemed rabies-free or low-risk are required to complete a CDC Dog Import Form.

The countries and regions deemed rabies-free or low-risk are:

• Albania, Andorra, Antigua and Barbuda, Argentina, Australia, Austria, Bahamas, Bahrain, Barbados, Belgium, Bermuda, Bhutan, Bosnia and Herzegovina, Brunei, Bulgaria, Cabo Verde, Canada, Chile, Costa Rica, Croatia, Cyprus, Czech Republic, Denmark, Dominica, Estonia, Fiji, Finland, France, Germany, Greece, Grenada, Hong Kong, Hungary, Iceland, Ireland, Italy, Jamaica, Japan, Kiribati, Kosovo, Latvia, Liechtenstein, Lithuania, Luxembourg, Macao, Maldives, Malta, Marshall Islands, Mauritius, Mexico, Micronesia, Monaco, Montenegro, Nauru, Netherlands, New Zealand, Nicaragua, North Macedonia, Norway, Palau, Palestine, Panama, Papua New Guinea, Paraguay, Poland, Portugal, Romania, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Samoa, San Marino, Serbia, Seychelles, Singapore, Slovakia, Slovenia, Solomon Islands, South Korea, Spain, Sweden, Switzerland, Taiwan, Tonga, Trinidad and Tobago, Tuvalu, United Kingdom, Uruguay, Vanuatu, Vatican City

The form is valid for 6 months from the date of issue and can be used for multiple entries into the United States as long as the dog has not been in a high-risk country in the last 6 months.

Travellers can complete the form on the day of travel. The form can be printed or displayed on a phone screen to United States customs officials or airlines.

Dogs must appear healthy upon arrival, be at least 6 months old at the time of entry or return to the United States, and must have a microchip that can be detected with a universal scanner.

• Health screening: While not always required, officials might ask for a health certificate or a medical exam upon arrival. This is more likely if you're coming from an area with a health outbreak or if you show signs of illness.