Americans Traveling Abroad
 
ETIAS (European Travel Information and Authorization System) 
 
Albania
 
PASSPORT VALIDITY 3 months after the planned date of departure
BLANK PASSPORT PAGES One page is required per entry stamp
TOURIST VISA REQUIRED Not required for U.S. citizens
VACCINATIONS None
CURRENCY RESTRICTIONS FOR ENTRY 1,000,000 lekė (approximately $9,500 USD, though the rate can fluctuate) or equivalent.
CURRENCY RESTRICTIONS FOR EXIT 1,000,000 lekė (approximately $9,500 USD , though the rate can fluctuate) or equivalent. 
Your passport should be valid for at least three months from the date of your arrival.

You may enter the Republic of Albania as a tourist without a visa. 
All travelers - You should be up to date on routine vaccinations while traveling to any destination. Some vaccines may also be required for travel.

Routine vaccines - Make sure you are up-to-date on routine vaccines before every trip. These vaccines include measles-mumps-rubella (MMR) vaccine, diphtheria-tetanus-pertussis vaccine, varicella (chickenpox) vaccine, polio vaccine, shingles and your yearly flu shot.

Covid-19 - All eligible travelers should be up to date with their COVID-19 vaccines.

Hepatitis A - Recommended for unvaccinated travelers one year old or older going to Croatia.
Hepatitis B - Recommended for unvaccinated travelers younger than 60 years old traveling to Croatia. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Croatia.
 
Bosnia and Herzegovina
 
PASSPORT VALIDITY 3 months after the planned date of departure
BLANK PASSPORT PAGES One page is required per entry stamp
TOURIST VISA REQUIRED Not required for stays under three months
VACCINATIONS None
CURRENCY RESTRICTIONS FOR ENTRY Amounts exceeding 10,000 Euros or equivalent must be declared on arrival
CURRENCY RESTRICTIONS FOR EXIT Amounts exceeding 10,000 Euros or equivalent require a bank certificate that the amount has been taken out from currency savings or bought from an authorized bank.
You need a passport valid for at least three months past your planned date of departure.

U.S. citizens do not need a visa for stays of up to 90 days total within a period of six months from the date of first entry.
All travelers - You should be up to date on routine vaccinations while traveling to any destination. Some vaccines may also be required for travel.

Routine vaccines - Make sure you are up-to-date on routine vaccines before every trip. These vaccines include measles-mumps-rubella (MMR) vaccine, diphtheria-tetanus-pertussis vaccine, varicella (chickenpox) vaccine, polio vaccine, shingles and your yearly flu shot.

Covid-19 - All eligible travelers should be up to date with their COVID-19 vaccines.

Hepatitis A - Recommended for unvaccinated travelers one year old or older going to Croatia.
Hepatitis B - Recommended for unvaccinated travelers younger than 60 years old traveling to Croatia. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Croatia.
 
Croatia
 
PASSPORT VALIDITY 3 months after the planned date of departure
BLANK PASSPORT PAGES One page is required per entry stamp
TOURIST VISA REQUIRED NO
VACCINATIONS None
CURRENCY RESTRICTIONS FOR ENTRY Up to 10,000 euros
CURRENCY RESTRICTIONS FOR EXIT Up to 10,000 euros
U.S. passport holders do not need a visa if they are traveling to Croatia for tourism or business for less than 90 days within a 180-day period.

Croatia is a member of the Schengen area. Land border controls between Croatia, Slovenia, and Hungary and the sea border with Italy ceased in 2023. The land borders with Serbia, Bosnia and Herzegovina, and Montenegro continue to have police and customs checks in place, as these countries are outside of the Schengen area. 
All travelers - You should be up to date on routine vaccinations while traveling to any destination. Some vaccines may also be required for travel.

Routine vaccines - Make sure you are up-to-date on routine vaccines before every trip. These vaccines include measles-mumps-rubella (MMR) vaccine, diphtheria-tetanus-pertussis vaccine, varicella (chickenpox) vaccine, polio vaccine, shingles and your yearly flu shot.

Covid-19 - All eligible travelers should be up to date with their COVID-19 vaccines.

Hepatitis A - Recommended for unvaccinated travelers one year old or older going to Croatia.
Hepatitis B - Recommended for unvaccinated travelers younger than 60 years old traveling to Croatia. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Croatia.
 
Greece
 
PASSPORT VALIDITY 6 months of remaining validity recommended
BLANK PASSPORT PAGES 1 page per stamp
TOURIST VISA REQUIRED Not required for stays less than 90 days
VACCINATIONS None
CURRENCY RESTRICTIONS FOR ENTRY 10,000 euros or the equivalent
CURRENCY RESTRICTIONS FOR EXIT 10,000 euros or the equivalent
Greece is a party to the Schengen Agreement; therefore, U.S. citizens may enter Greece without a visa for stays of up to 90 days for tourism or business purposes. 
All travelers - You should be up to date on routine vaccinations while traveling to any destination. Some vaccines may also be required for travel.

Routine vaccines - Make sure you are up-to-date on routine vaccines before every trip. These vaccines include measles-mumps-rubella (MMR) vaccine, diphtheria-tetanus-pertussis vaccine, varicella (chickenpox) vaccine, polio vaccine, shingles and your yearly flu shot.

Covid-19 - All eligible travelers should be up to date with their COVID-19 vaccines.

Hepatitis A - Recommended for unvaccinated travelers one year old or older going to Croatia.
Hepatitis B - Recommended for unvaccinated travelers younger than 60 years old traveling to Croatia. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Croatia.
 
 Montenegro
 
PASSPORT VALIDITY Must be valid at time of entry
BLANK PASSPORT PAGES One page is required per entry stamp
TOURIST VISA REQUIRED Not required for stays under 90 days
VACCINATIONS None
CURRENCY RESTRICTIONS FOR ENTRY 10,000 euros or the equivalent
CURRENCY RESTRICTIONS FOR EXIT 10,000 euros or the equivalent
U.S. citizen visitors (traveling with U.S. passports) do not need a visa to enter and stay in Montenegro for up to 90 days.

All travelers - You should be up to date on routine vaccinations while traveling to any destination. Some vaccines may also be required for travel.

Routine vaccines - Make sure you are up-to-date on routine vaccines before every trip. These vaccines include measles-mumps-rubella (MMR) vaccine, diphtheria-tetanus-pertussis vaccine, varicella (chickenpox) vaccine, polio vaccine, shingles and your yearly flu shot.

Covid-19 - All eligible travelers should be up to date with their COVID-19 vaccines.

Hepatitis A - Recommended for unvaccinated travelers one year old or older going to Croatia.
Hepatitis B - Recommended for unvaccinated travelers younger than 60 years old traveling to Croatia. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Croatia.