33Under the principle of equal treatment as between tenderers, the aim of which is to promote the development of healthy and effective competition between undertakings taking part in a public procurement procedure, all tenderers must be afforded equality of opportunity when formulating their tenders, which therefore implies that the tenders of all competitors must be subject to the same conditions (see, to that effect, judgments in Commission v CAS Succhi di Frutta, C‑496/99 P, EU:C:2004:236, paragraph 110, and Cartiera dell’Adda, C‑42/13, EU:C:2014:2345, paragraph 44).
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