Article 53(4)

Where contracting entities have decided to hold an electronic auction, the procurement documents shall include at least the following details:

(a) the features whose values will be the subject of electronic auction, provided that such features are quantifiable and can be expressed in figures or percentages;

(b) any limits on the values which may be submitted, as they result from the specifications relating to the subject of the contract;

(c) the information which will be made available to tenderers in the course of the electronic auction and, where appropriate, when it will be made available to them;

(d) the relevant information concerning the electronic auction process;

(e) the conditions under which the tenderers will be able to bid and, in particular, the minimum differences which will, where appropriate, be required when bidding;

(f) the relevant information concerning the electronic equipment used and the arrangements and technical specifications for connection.