Documents certifying advance payment will be valid for the specified term. Conversion of the value shall be based on general conversion rules. The introduction of the euro shall not have the effect of modifying the terms and conditions of any documents or exempt anyone from the fulfilment of obligations undertaken; neither does it grant a party the right to unilaterally modify or terminate a valid document, unless the parties agree otherwise. This principle applies to any contracts and documents proving the existence thereof, such as advance payment cards, gift cards, tickets, packaging meter receipts, etc.
Three months prior to the euro changeover, all public sector enterprises will be asked to notify what is the period of validity of issued tickets and other documents after the euro changeover. The term of local public transport tickets, indicated in kroons, shall be established by the local government.