1. The Commission shall notify a decision addressed to an undertaking or to an association of undertakings without delay and shall give that undertaking or association of undertakings the opportunity to indicate to the Commission which information in the decision it considers to be confidential.
2. The Commission shall inform the contracting authority or contracting entity concerned about a decision adopted pursuant to Article 31(1) and (3) addressed to an economic operator participating in a public procurement procedure.
3. Decisions adopted pursuant to Article 29(4) and Article 31(2) shall be addressed to the contracting authority or contracting entity concerned. The Commission shall provide the economic operator to which the award of the contract is prohibited with a copy of that decision.