Dec. 27, 1946 61 STAT.] PERU-AIR TRANSPORT SERVICES May8 21,1946 2587 May 6, 8, July 21, 1947 has authorized an airline for such route, and the contracting party granting the rights shall, subject to article 6 hereof, be bound to give the appropriate operating permission to the airline or airlines con- cerned; provided that the airlines so designated may be required to qualify before the competent aeronautical authorities of the con- tracting party granting the rights under the laws and regulations normally applied by these authorities before being permitted to en- gage in the operations contemplated by this agreement; and pro- vided that in areas of hostilities or of military occopation, or in areas affected thereby, such operations shall be subject to the approval of the competent military authorities. ARTICLE 3 In order to prevent discriminatory practices and to assure equality Prevention of dis- of treatment, both contracting parties agree that: etc. a) Each of the contracting parties may impose or permit to be imposed just and reasonable charges for the use of public airports and other facilities under its control. Each of the contracting parties agrees, however, that these charges shall not be higher than would be paid for the use of such airports and facilities by its national aircraft engaged in similar international services. b) Fuel, lubricating oils, and spare parts introduced into the terri- tory of one contracting party by the other contracting party or its nationals, and intended solely for use by aircraft of the airlines of such contracting party shall, with respect to the imposition of customs duties, inspection fees or other national duties or charges by the contracting party whose territory is entered, be accorded the same treatment as that applying to national airlines and to airlines of the most-favored nation. c) The fuel, lubricating oils, spare parts, regular equipment and aircraft stores retained on board civil aircraft of the airlines of one contracting party authorized to operate the routes and services described in the Annex shall, upon arriving in or leaving the territory ost' P1259o. of the other contracting party, be exempt from customs, inspection fees or similar duties or charges, even though such supplies be used or consumed by such aircraft on flights in that territory. ARTICLE 4 Certificates of airworthiness, certificate of competency and licenses Certi l fi ca tes of air- issued or rendered valid by one contracting party and still in force shall be recognized as valid by the other contracting party for the purpose of operating the routes and services described in the Annex. Post, p. 2590. Each contracting party reserves the right, however, to refuse to recognize, for the purpose of flight above its own territory, certificates of competency and licenses granted to its own nationals by another state. ARTICLE 5 a) The laws and regulations of one contracting party relating to Laws and regula- the admission to or departure from its territory of aircraft engaged in
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