The Centers for Disease Control and Prevention (CDC) updated its travel guidance for people who are fully vaccinated, and said that “people who are fully vaccinated with an FDA-authorized vaccine can travel safely within the United States.”

The guidance does come with a number of addendums though, including that the person still needs to show precautions like continuing to wear a mask, avoiding crowds, and washing their hands, as well as avoiding nonessential travel. The CDC is also still recommending self-monitoring for COVID symptoms after their trip, and to isolate and take a test if any symptoms emerge. Before the announcement, the CDC still recommended testing and self-quarantine for everyone, even those that are vaccinated.

The CDC’s definition of “fully vaccinated” is a person who is two weeks past receiving their last dose of the vaccine.

Masks are still required on all planes.

However, the CDC wanted to urge that Americans who are not yet vaccinated need to remember the pandemic is not yet over. Travelers still must test and show a negative test before entering, or re-entering, the United States from foreign countries.

According to NPR, 16.9 percent of the U.S. is fully vaccinated, with around 30 percent having received at least one shot.