This Regulation shall not apply to:
(a) international tramp vessel services as defined in Article 1(3)(a) of Regulation (EEC) No 4056/86;
(b) a maritime transport service that takes place exclusively between ports in one and the same Member State as foreseen in Article 1(2) of Regulation (EEC) No 4056/86;
(c) air transport between Community airports and third countries.