1. Before adopting a decision pursuant to Article 8, Article 9(1), Article 10(1), Articles 17, 18, 24, 25, 29 and 30 and Article 31(2), the Commission shall give the gatekeeper or undertaking or association of undertakings concerned the opportunity of being heard on:

(a) preliminary findings of the Commission, including any matter to which the Commission has taken objection; and

(b) measures that the Commission may intend to take in view of the preliminary findings pursuant to point (a) of this paragraph.

2. Gatekeepers, undertakings and associations of undertakings concerned may submit their observations to the Commission concerning the Commission's preliminary findings within a time limit set by the Commission in its preliminary findings which may not be less than 14 days.