140However, the nature of the second measure, which took the form of the application of a ‘general’ regime, based on criteria that were, in themselves, also of a general nature, does not preclude a finding that that measure is selective. The condition relating to selectivity has a broader scope, extending to measures which, by their effects, favour certain undertakings on account of the specific features characteristic of those undertakings. Similarly, it is apparent from the case-law that the fact that the aid is not aimed at one or more specific recipients defined in advance, but is subject to a series of objective criteria pursuant to which it may be granted to an indefinite number of beneficiaries who are not initially individually identified, cannot suffice to call into question the selective nature of the measure and, accordingly, its classification as State aid within the meaning of Article 107(1) TFEU. Such a fact does not preclude that public intervention from having to be regarded as constituting a selective measure if, owing to the criteria governing its application, it procures an advantage for certain undertakings, to the exclusion of others (see, to that effect, judgment of 29 September 2000, CETM v Commission, T‑55/99, EU:T:2000:223, paragraph 40). Thus, the general nature of the AIP did not, as such, preclude any de facto discrimination between the airlines using the airport.