Multi Stage Procedure
A multi-stage open competitive procedure shall normally be used in case of:(a) a turnkey contract, where the contractor is responsible for the design,(b) a contract for large complex works or services,(c) a contract for works of a special nature,(d) a contract for innovative or bespoke goods,(e) a contract for goods that are subject to rapid technological advances or which may be produced with many technical variables, or(f) a contract which by its nature or complexity requires comprehensive dialogue with participants.
It is recommended to read the Introduction and Instructions for Use before starting the preparation of specific procurement documents, as well as applications or proposals.