Transparency (Principle)

Transparency in public procurement requires that the entire process is open and clear to all stakeholders. This means tender opportunities are publicly advertised when required, rules and evaluation criteria are published beforehand, and key decisions such as award outcomes are documented and explained. Transparency helps deter favoritism, fraud, and corruption by ensuring procedures, scores, and awards can be reviewed and understood.

Under EU law—as reflected in public-procurement directives and reinforced by the Court of Justice of the EU—transparency is a fundamental principle alongside non-discrimination, equal treatment, and proportionality. It is expressed through the publication of Notices like Prior Information Notices, Contract Notices, and Award Notices in the Official Journal (via TED), ensuring that the subject matter of contracts and award criteria are clearly defined and accessible.

In practice, transparency allows suppliers to participate on an even footing and enables public scrutiny of procurement decisions. Authorities implement transparency through public tender notices, accessible tender documents, timely debriefing for unsuccessful bidders, and publication of award decisions. This openness fosters trust, supports fair competition, and reinforces the accountability and integrity of public procurement.