A visitor to an exhibition is defined as a person attending an exhibition during the hours in which it is officially open to visitors, who wishes to obtain information and/or make contact with exhibitors.

Employees on the stands, journalists, employees of exhibition service providers, employees of the exhibition organiser and of the operators of the exhibition grounds are not categorized as visitors.

The exhibition organiser must supply suitable proof that the persons listed above are not counted as visitors.

Speakers and congress attendees are only to be counted as visitors providing they attend the exhibition.