69The scope of the definition in Article 3(d) of Decision 2011/278 cannot be limited, when it is interpreted, through the addition of requirements or exclusions which are not mentioned therein and which cannot be inferred from other provisions of that decision or from Directive 2003/87. Such an approach would run counter to the principle of legal certainty, according to which EU law must allow those concerned to know unequivocally what their rights and obligations are and to take steps accordingly (see, to that effect, judgment of 3 June 2021, Jumbocarry Trading, C‑39/20, EU:C:2021:435, paragraph 48 and the case-law cited).
Source: EUR-Lex, © European Union, 1998-2026. Reuse authorised under Decision 2011/833/EU.