Article 80
The following shall be exempt on admission: (a) documentation (leaflets, brochures, books, magazines, guidebooks, posters, whether or not framed, unframed photographs and photographic enlargements, maps, whether or not illustrated, window transparencies, and illustrated calendars) intended to be distributed free of charge and the principal purpose of which is to encourage the public to visit foreign countries, in particular in order to attend cultural, tourist, sporting, religious or trade or professional meetings or events, provided that such literature contains not more than 25 % of private commercial advertising and that the general nature of its promotional aims is evident; (b) foreign hotel lists and yearbooks published by official tourist agencies, or under their auspices, and timetables for foreign transport services, provided that such literature is intended for distribution free of charge and contains not more than 25 % of private commercial advertising; (c) reference material supplied to accredited representatives or correspondents appointed by official national tourist agencies and not intended for distribution, that is to say, yearbooks, lists of telephone or telex numbers, hotel lists, fairs catalogues, specimens of craft goods of negligible value, and literature on museums, universities, spas or other similar establishments.