Per CDC, people who have been fully vaccinated can resume daily activities that they had stopped doing because of the pandemic. Here are the updated information posted by CDC as of April 2, 2021. This applied to travelers who have been fully vaccinated with FDA-approved vaccines.
You do NOT need to get tested before leaving the United States unless your destination requires it.
You still need to show a negative test result or documentation of recovery from COVID-19 before boarding a flight to the United States.
You should still get tested 3-5 days after international travel.
You do NOT need to self-quarantine after arriving in the United States.
If you travel in the United States, you do not need to get tested before or after travel or self-quarantine after travel.
You can gather indoors with fully vaccinated people without wearing a mask or staying 6 feet apart.
You can gather indoors with unvaccinated people of any age from one other household (for example, visiting with relatives who all live together) without masks or staying 6 feet apart, unless any of those people or anyone they live with has an increased risk for severe illness from COVID-19.
If you’ve been around someone who has COVID-19, you do not need to stay away from others or get tested unless you have symptoms.
You will still be required to wear a mask on planes, buses, trains, and other forms of public transportation traveling into, within, or out of the United States, and in U.S. transportation hubs such as airports and stations.
Fully vaccinated international travelers arriving in the United States are still required to get tested within 3 days of their flight (or show documentation of recovery from COVID-19 in the past 3 months) and should still get tested 3-5 days after their trip.