The website Diplomatie.be provides details of the different rules for people travelling to Belgium.
Religious services, marriages and funerals can continue without any restrictions. The wearing of face masks remains mandatory in buildings.
More info (FL)
Apart from the obligation to wear a face mask, there are no specific rules for these services and ceremonies (no maximum number of people attending, no social distancing, etc.).
More info (FR)
In the Brussels-Capital Region, the maximum number of people who can attend services and ceremonies is 200 for indoor events and 400 for outdoor events, with mandatory face masks and social distancing and without prejudice to any applicable protocols. However, exceptions to the number of participants are possible, subject to permission from the local authorities, with application of the Covid Event Risk Model (CERM) or Covid Infrastructure Risk Model (CIRM).
What are the rules for an individual visit to a place of worship?
Apart from the obligation to wear a face mask in places of worship and buildings intended for non-denominational public services, there are no specific rules for an individual visit to a place of worship.