The exhibitor must provide the organizer with: two copies of passports of the delegation members, one photo to issue an exhibitor card and date of arrival and departure. 1- The organizer reserves the right to postpone the fair to alter duration or hours of opening or closing or to exclude the public early or cancel it altogether if there are important reasons for doing so. Any of these alterations will have no effect on the validity of the con¬tracts with exhibitors and on the organizer's claim for full paymen_ of the stand rental. 2- The conclusion of the contracts does not entitle the exhibitor to a a specific position. 3- The organizer is entitled to decrease the stand and rental will be de¬creased accordingly. 4- Any decorations or promotion material must fixed to the stand walls in such away that the stand's material is not damaged or disfigured (e.g. permanent adhesive tape). 5- Flashing light signals of any kind must not be used on the stand. Stick¬ers may not be offered or distributed from stands or any where else in the halls. 6- audio-visual equip.ment may only be used if it does not disturb the neighboring stands in any way. Advertising of any kind is permitted on the fairground only through the fair's management.                          Non-compliance with terms and condition  The organizer may exclude an exhibitorfrom thefair if he does not comply with the terms and conditions and persists in doing so after admonition or repeats breache_ of the contract which have already been admonished at previous fairs. In particularly serious cases, this exhibitor may also be excluded from future fairs, also applied if the exhibits banned by court of law have been shown or if the exhibitor or his employees have committed or encouraged punishable offence (e.g. theft or deliberate copyright infringement).