30. 8. 88 Official Journal of the European Communities No L 239/9 i COMMISSION REGULATION (EEC) No 2671/88 of 26 July 1988 on the application of Article 85 (3) of the Treaty to certain categories of agreements between undertakings, decisions of associations of undertakings and concerted practices concerning joint planning and coordination of capacity, sharing of revenue and consultations on tariffs on scheduled air services and slot allocation at airports THE COMMISSION OF THE EUROPEAN COMMUNITIES, Having regard to the Treaty establishing the European Economic Community, : Having regard to Council Regulation (EEC) No 3976/87 of 14 December 1987 on the application of Article 85 (3) of the Treaty to certain categories of agreements and concerted practices in the air transport sector ('), and in particular Article 2 thereof, Having published a draft of this Regulation (), .Having consulted the Advisory Committee on Agreements and Dominant Positions in Air Transport, Whereas : (1)  Regulation (EEC) No 3976/87 empowers the Commission to apply Article 85 (3) of the Treaty by regulation to certain categories of agreements, decisions or concerted practices relating directly or indirectly to the provision of air transport services: (2)  Agreements, decisions or concerted practices concerning joint planning and coordination of capacity, sharing of revenue, consultations on tariffs and slot allocation at airports are liable to restrict competition and affect trade between Member States. (3)  Agreements concerning joint planning and coordi- nation of capacity can help ensure the maintenance of services at less busy times of the day, during less busy periods or on less busy routes, thus benefiting air transport users. However, no air carrier should be bound by each agreement or concerted practices but must be free to change its planned services unilaterally. Nor must they prevent carriers deploying extra capacity. Any clauses concerning () OJ No L 374, 31. 12. 1987, p. 9. () OJ No C 138, 28. 5. 1988, p. 3. extra flights must not require prior approval in the event of deviation or involve financial penalties. Agreements must also allow parties to withdraw from them at reasonably short notice. (4  Agreements on the sharing of revenue may encourage airlines to provide a service on a route during less busy periods, thereby improving the service to air transport users. To be eligible for exemption under Article 85 (3), however, revenue sharing must be kept within limits such that it does not affect the competitiveness of more efficient carriers. It must also be clearly related — route by route, and not merely in aggregate, because each route has its specific features — to improvements in the services covered by the agreement. (5)  Council Directive 87/601/EEC of 14 December 1987 on fares for scheduled air services between "Member States (%) has laid down a new procedure for the establishment of air fares, which is a step towards an increase in price competition in air transport. The procedure restricts the possibility of innovative and competitive fare proposals by air carriers being blocked. Hence, competition may not be eliminated under these arrangements and consumers will benefit from them. Consultations ~on tariffs between air carriers may therefore be permitted, provided that participation in such consultations is optional, that they do not lead to an agreement in respect of tariffs or related _conditions and that in the interests of transparency "the Commission and the Member States concerned can send observers to them. (6) Agreements on slot allocation at airports and airport scheduling can improve the utilizationi of airport capacity and- airspace, facilitate air traffic control and help spread out the supply of air transport services from the airport. However, to provide a satisfactory degree of security and () OJ No L 374, 31. 12. 1987, p. 12.