Under the latest regulations issued by the US Centers for Disease Control and Prevention (CDC), starting at noon on Wednesday (Vietnam time), all people boarding an international flight to the US must attest that they have not been present in the Democratic Republic of the Congo (DRC) in the 21 days before boarding a flight to the US.

Travelers, including US citizens and US nationals, who have been in DRC within 21 days before departure will not be allowed to board flights with US destinations.

Non-US citizens and non-US nationals, including US lawful permanent residents (Green Card holders), who have been in South Sudan or Uganda within 21 days before departure will not be allowed to enter the US.

Any stopover or transit in the DRC, South Sudan, or Uganda, even if passengers do not leave the aircraft, will count as having been present in the country concerned.

US citizens and US nationals who have been present in Uganda or South Sudan (and not present in DRC) within 21 days before arrival in the United States will have their air travel routed through designated US airports for public health entry screening.