The United States (US) Centers for Disease Control and Prevention (CDC) moved Brunei to Level 3 on December 28, 2021 from Level 4 three months prior.
In its COVID-19 travel advisories weekly update, the Sultanate, along with Argentina (previously at Level 2) were added to Level 3, meaning one must be fully vaccinated before travelling to the Sultanate.
The four-level system categorises international destinations into the following levels: Level 4 (Very high level of COVID-19) – one should avoid travel to this destination; Level 3 (High level of COVID-19) – one must be fully vaccinated before travel.
Unvaccinated travellers should avoid non-essential travel to this destination.
Level 2 is moderate level of COVID-19 and one must be fully vaccinated before travel. Unvaccinated travellers at increased risk for severe illness from COVID-19 should avoid non-essential travel to the destination. Level 1 is low level of COVID-19 and individuals must be fully vaccinated before travelling to the destination.
In its Key Information for Travellers to Brunei, the CDC said travellers should follow the country’s requirements, including wearing a mask and staying six feet apart from others.