(CNN)Fully vaccinated people who travel by public transportation no longer need to wear masks in places like outdoor waiting areas or open-air seating, the US Centers for Disease Control and Prevention (CDC) said Thursday.
The CDC said it plans to update its face masks order to reflect the change and to better align with its guidance for fully vaccinated people.
Until then, the agency said it will "exercise its enforcement discretion" to not require masks in outdoor areas of transportation hubs, such as bus or train stops, or open-air areas on ferries, trolleys or buses.
The CDC order refers to public conveyances, which includes "airplanes, trains, subways, buses, taxis, ride-shares, maritime transportation, trolleys and cable cars."
"While those who are fully vaccinated may resume many activities without wearing a mask, the travel environment presents a unique set of circumstances based on the number and close interaction of travelers (both vaccinated and unvaccinated)," the CDC said.
People who are not yet vaccinated should continue wearing masks in these areas, the CDC said.
The agency maintains that both vaccinated and unvaccinated people should continue to wear masks indoors in public transportation settings, except under certain circumstances, like when eating, drinking or taking medicine.

Give all the people vaccinated from now till 2 years time. RIP