
During the COVID-19 pandemic, non-U.S. citizens and non-U.S. immigrants travelling to the United States by air were required to show proof of full vaccination against COVID-19. However, there were exceptions for those with medical contraindications, persons on diplomatic or foreign government travel, children under 18, and others. It is important to refer to the U.S. embassy or consulate for the most up-to-date information.
| Characteristics | Values |
|---|---|
| Who must be vaccinated? | Non-U.S. citizens and non-U.S. immigrants traveling to the U.S. by air |
| Who is exempt? | U.S. citizens, U.S. nationals, lawful permanent residents, those on diplomatic or official foreign government travel, children under 18, those with documented medical contraindications, participants in certain COVID-19 vaccine trials, those with humanitarian or emergency exceptions, and those with valid visas (excluding B-1 and B-2 visas) |
| Who can provide vaccines? | Health care providers, pharmacies, hospitals, clinics, and doctors' offices |
| Who must pay for the vaccine? | The person receiving the vaccine |
| Who decides if someone is eligible for the vaccine? | A doctor |
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What You'll Learn
- Non-US citizens must be fully vaccinated against COVID-19 to enter the US by air
- Medical contraindications must be proven with a letter from a licensed physician
- US military members, spouses, and children under 18 are exempt from vaccination
- Non-US citizens with valid visas may meet criteria for an exception
- Only limited exceptions apply to the requirement for vaccination to enter the US

Non-US citizens must be fully vaccinated against COVID-19 to enter the US by air
As of 2021, non-US citizens must be fully vaccinated against COVID-19 to enter the US by air. This applies to all non-US citizens, non-US immigrants, and nonimmigrants (those not holding a US passport, US national identity card, or travelling on an immigrant visa). These travellers are required to show proof of full vaccination before boarding a flight to the US from a foreign country.
There are, however, some exceptions to this rule. Unvaccinated foreign nationals who fall into certain categories may be exempt from the vaccination requirement. These categories include:
- Persons on diplomatic or official foreign government travel
- Children under 18 years of age
- Persons with documented medical contraindications to receiving a COVID-19 vaccine
- Participants in certain COVID-19 vaccine trials
- Persons issued a humanitarian or emergency exception
- Persons with valid visas excluding B-1 (business) or B-2 (tourism) visas
Unvaccinated foreign nationals who meet the criteria for an exception must still follow additional requirements. They must provide a document detailing their exemption and agree to undergo COVID-19 testing and self-quarantine upon arrival in the US.
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Medical contraindications must be proven with a letter from a licensed physician
While there are no explicit sources that directly discuss the scenario of having to prove medical contraindications with a letter from a licensed physician to enter the US, it is a common requirement in other contexts. In the context of vaccination requirements for travel or specific activities, it is generally advisable to carry official documentation that validates any medical exemptions.
When it comes to international travel, each country has its own set of requirements for entry, which may include vaccination mandates or allowances for medical exemptions. It is essential to consult the official guidelines provided by the US government and other reputable sources to understand the current entry requirements.
In the context of vaccination requirements for specific activities or organizations within the US, such as schools, workplaces, or healthcare institutions, the guidelines may vary. However, it is generally advisable to provide official documentation from a licensed physician to support any claimed medical contraindications. This documentation should outline the specific medical reasons why an individual cannot receive a particular vaccine.
It is worth noting that the specific requirements and processes for proving medical contraindications may vary depending on the situation and the institution enforcing the vaccination mandate. As such, it is essential to refer to the relevant authorities or organizations for detailed instructions on how to provide valid proof of medical contraindications.
Additionally, it is important to recognize that the landscape of vaccination requirements and exemptions is ever-evolving, and policies may change over time. Staying informed about the latest guidelines and requirements is crucial for ensuring compliance and understanding your rights when it comes to medical exemptions.
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US military members, spouses, and children under 18 are exempt from vaccination
As per the new travel guidelines by the Biden administration, US military members, spouses, and children under 18 are exempt from vaccination requirements when entering the US. This means that children under 18 are not required to provide proof of vaccination before boarding inbound flights to the US. However, they will be subject to stringent testing requirements. Unvaccinated travellers, including US citizens and Green Card holders, must undergo testing within a specific timeframe before departure.
The updated travel guidelines, which came into effect on November 8, 2021, mandate that non-citizen, non-immigrant air travellers to the US must be fully vaccinated and provide valid proof of their COVID-19 vaccination status. These guidelines were implemented to strengthen protections against the spread of COVID-19 and its variants, in conjunction with other mitigation measures such as testing, contact tracing, and public health follow-up for international travellers.
While children under 18 are exempt from vaccination requirements, their parents or guardians must be fully vaccinated, with certain exceptions. This exemption considers the global variability in vaccine access and eligibility for younger children. The Biden administration has emphasised that these rules are crafted to be narrow and focused on preventing people from getting sick, hospitalized, and dying from COVID-19.
It is important to note that the rules and exemptions may change over time as the pandemic situation evolves and new variants emerge. Therefore, it is always advisable to stay updated with the latest official guidelines and recommendations provided by the US government and health authorities.
By implementing these travel guidelines, the US government aims to balance the safety and well-being of its citizens and visitors while ensuring a smooth and secure entry process for international travellers. These measures reflect the ongoing efforts to manage the public health crisis and encourage vaccination as a critical tool in the fight against COVID-19.
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Non-US citizens with valid visas may meet criteria for an exception
Non-US citizens with valid visas may be allowed to enter the US, depending on the type of visa and the purpose of their visit. Here are some scenarios where non-US citizens with valid visas may meet the criteria for entry into the US:
- Visa Waiver Program Countries: Citizens of countries participating in the Visa Waiver Program can enter the US without a visa if they have an e-Passport with a digital photograph printed on the data page. This passport must be valid for at least six months beyond their intended stay in the US.
- Visa Exempt Countries: Citizens of certain countries, such as Canada, Bermuda, and some neighbouring jurisdictions, are generally exempt from visa requirements for visiting the US. However, they must have a valid passport and may need to meet specific entry requirements, such as the duration of their stay.
- Compacts of Free Association: Citizens of the Marshall Islands, Micronesia, and Palau can enter, reside, study, and work in the US indefinitely without a visa due to Compacts of Free Association. This benefit applies to citizens by birth, naturalized citizens who have resided in these countries for at least five years, and those who acquired citizenship through means other than investment.
- Student Visas: Non-US students enrolled in accredited US institutions typically require an F-1 visa to enter the country. Spouses and children of F-1 visa holders may accompany them with an F2 visa. Additionally, "border commuters" who reside in their country of origin while attending school in the US would need an F-3 visa.
- Employment Visas: Obtaining an employment visa typically involves a three-step process. First, a prospective employer files an application with US Citizenship and Immigration Services requesting a specific visa category for an individual. If approved, the individual applies for the visa and undergoes an interview at a US embassy or consulate in their native country. Upon visa approval, they can travel to the US and request admission at the port of entry.
- Diplomatic and Government Official Visas: Various visa categories cater to diplomats, government officials, and employees of international organizations working in the US. These include A visas for foreign government representatives and G visas for diplomats and officials working for designated international organizations.
It is important to note that visa requirements and policies can change, and specific conditions may apply for each visa category. Non-US citizens should always check the latest information provided by official US government sources before planning their travel.
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Only limited exceptions apply to the requirement for vaccination to enter the US
As of May 12, 2023, there is no official COVID-19 vaccine mandate for visitors entering the US. However, during the COVID-19 pandemic, there were vaccination requirements for non-immigrant travellers entering the country. From November 8, 2021, all non-citizens entering the US were required to be fully vaccinated, with "non-essential" visitors having to provide proof of vaccination. This applied to adult foreign national travellers entering the US by air, as well as "essential visitors" crossing into the US by land or ferry from January 2022.
While there is currently no vaccine mandate for visitors entering the US, there are vaccination requirements for those seeking to become US citizens. According to the US Department of State, applicants for immigration visas are required to be vaccinated against certain diseases common in the US, such as measles, mumps, and varicella. All vaccines recommended by the US government for its citizens are also mandatory for green card applicants.
The US has a long history of school vaccination requirements, with the first mandate enacted in the 1850s in Massachusetts to prevent the spread of smallpox. By 1963, twenty states had implemented school vaccination laws, and today, vaccination is a routine requirement for students entering schools across the country.
In summary, while there may not be a current vaccine mandate for visitors entering the US, limited exceptions apply to the vaccination requirements for those seeking to become US citizens or obtain a green card. Additionally, the US has strict guidelines regarding the importation of certain items to prevent the spread of diseases, and customs officials play a crucial role in enforcing these regulations.
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Frequently asked questions
During the COVID-19 pandemic, all non-US citizens travelling to the US by air were required to show proof of being fully vaccinated against COVID-19.
There is no vaccination requirement for US citizens to enter the US. However, the US government has recommended that its citizens get vaccinated, especially those at high risk of severe illness from COVID-19, such as the elderly or those with underlying medical conditions.
If you have a medical contraindication to receiving a COVID-19 vaccine, you must show a letter from a licensed physician to the airline or aircraft operator before boarding a flight to the US.
Vaccination rates in the US have been declining, with an increasing number of people choosing to remain unvaccinated. This has caused concern among some Americans, especially those with fragile immune systems or close contact with high-risk individuals.










































