Admission to the Conference and identity verification 3.2.6 The Conference Organizer reserves the right to check the identity of anyone entering the Conference grounds (or to have it checked by designated representatives). If one cannot identify oneself, the Conference visitor may be refused entry to the Conference. A valid identification document can be a valid ID card, passport, or driver's license. Copies of identity documents will not be accepted. 3.2.7 The Conference Organizer reserves the right to check an interoperable vaccination/recovery certificate or proof of a negative COVID-19 test result on entry. If it cannot be provided, the Conference visitor may be refused entry to the Conference.