Organising trade fairs has been on a green light for a while already. As a location where visitors are constantly moving around, we were excempted from the restrictions on oter events. As of now, the obligation of holding one and a halve meter distance will be no longer be applicable. Standbuilders, exhibitors and visitors will only have access to Expo Haarlemmermeer with a European Covid Digital Certificate (Corona QR code/Green Pass) and valid identification. 
If you are unable to show a COVID Certificate and don't have a proof of vaccination, proof of recovery or valid DCC (EU traveller)? Then get tested (free of charge) for entry. Please check this website for making an appointment

Of course we will still advice all visitors of the basic rules: stay home when you have complaints, give each other space and make use of the present hygiene resources.