34Thus, first, the principles of equal treatment and non-discrimination require tenderers to be afforded equality of opportunity when formulating their bids, which therefore implies that the bids of all tenderers must be subject to the same conditions. Secondly, the obligation of transparency is intended to preclude any risk of favouritism or arbitrariness on the part of the contracting authority. That obligation implies that all the conditions and detailed rules of the award procedure must be drawn up in a clear, precise and unequivocal manner in the contract notice or tender specifications so that, first, all reasonably informed tenderers exercising ordinary care can understand their exact significance and interpret them in the same way and, secondly, the contracting authority is able to ascertain whether the tenders submitted satisfy the criteria applying to the contract in question (judgments of 7 April 2016, Partner Apelski Dariusz, C‑324/14, EU:C:2016:214, paragraph 61 and the case-law cited, and of 4 May 2017, Esaprojekt, C‑387/14, EU:C:2017:338, paragraph 36).
Source: EUR-Lex, © European Union, 1998-2026. Reuse authorised under Decision 2011/833/EU.