Currently, visitors must take PCR or rapid antigen test (RAT) on the first or second day of their trip, and quarantine until they receive a negative result.
They must also take a further PCR or RAT test on Day 7 of their trip.
However, from Friday (26 November), the rules will be relaxed allowing visitors to meet the requirements via a single test, the Foreign Office has confirmed.
Travellers who can present evidence of a negative PCR test that is less than 72 hours old, or a negative RAT test taken a day before arrival or on their day of arrival, will no longer be required to test negative on Day 1 or 2 after their arrival.
This will also exempt them from having to take a Day 7 test too.
The FCDO added RAT tests are available from many local pharmacies in Belgium, with results provided in around 20 minutes.