30 (c) The members of the Forces or the civilian component, and dependents, who bear drivers' licenses, vessel operators' permits, or licenses and classifications of air pilots-issued by the federal or state authorities of the United States or by the authorities of the former Canal Zone, shall receive equivalent Panamanian licenses, permits and classifications without being subjected to new tests or payments of new fees. The applicants may retain the licenses, permits and classifications of the United States or the former Canal Zone provided that they leave with the Panamanian authorities a7 copy authenticated by the United States Forces and duly translated into Spanish. Members of the Forces or the civilian component, and dependents, shall be permitted to drive vehicles, vessels or aircraft in the Republic of Panama with such licenses, permits and classifications during the thirty days following their first arrival in the Republic of Panama and during the subsequent period necessary for the processing of the application- in Panama for a driver's license, vessel operator's permit, or license and classification as an air pilot. (d) The Panamanian licenses, permits or classifications shall be valid for the period of time indicated in the-Panamanian law and, during the continuous presence of the bearer in Panama, shall, to preserve their validity, be renewed in7 accordance with Panamanian laws. Whenever Panamanian laws may require medical certifications for the renewal of licenses, permits or classifications the Republic of Panama shall accept the certifications issued by the medical.services of the United States Forces, provided that said certifications are issued in Spanish. TIAS 10032