(4)
The aeronautical authorities of one Contracting Party may require an airline designated by the other Contracting Party to satisfy them that it is qualified to fulfil the conditions prescribed under the laws and regulations normally and reasonably applied to the operation of international air services by such
authorities.
(5) When an airline has been so designated and authorised it may begin to operate the agreed services, provided that the airline complies with all applicable provisions of this Agreement, including those relating to tariffs.