Under EU public procurement directives, which of the following are procedures in which there is no commercial negotiation allowed?

The EU Public Procurement Directives outline several procedures for awarding contracts. The Open and Restricted procedures are the most traditional and rigid. In both, the contracting authority sets out its requirements, and suppliers submit their final tenders based on these. There is no stage for negotiation to alter the substance of the tenders once submitted. The contract is awarded based on the most economically advantageous tender according to the pre-disclosed award criteria. Any negotiation is explicitly forbidden to ensure transparency and equal treatment.

A. Innovation Partnerships are specifically designed for developing innovative products where solutions are not readily available, inherently requiring negotiation.
D. Competitive Dialogue is used for complex projects and involves a structured dialogue with bidders to identify and define the best solution.
E. The Competitive Procedure with Negotiation, by its very name, explicitly allows for negotiation with tenderers to improve their initial bids.

1. Directive 2014/24/EU of the European Parliament and of the Council of 26 February 2014 on public procurement.

Article 27, "Open procedure," and Article 28, "Restricted procedure," detail processes that do not include a negotiation phase on the substance of the tenders.

Articles 29, 30, and 31 describe the Competitive Procedure with Negotiation, Competitive Dialogue, and Innovation Partnerships, all of which explicitly involve negotiation or dialogue.

2. Arrowsmith, S. (2014). The Law of Public and Utilities Procurement: Regulation in the EU and UK (3rd ed.). Sweet & Maxwell. Chapter 4 provides a detailed analysis of the procurement procedures, distinguishing between those that permit negotiation (Competitive Dialogue, etc.) and those that do not (Open, Restricted).