The certificate of the license required for pilots shall be kept in the personal possession of the licensee when he is operating aircraft; the certificate of the license required for aircraft shall be kept in the aircraft at all times when the aircraft is being used; and either or both of the certificates must be presented for inspection upon the demand of any passenger, any peace officer, or any official, manager, or person in charge of any airport or landing field upon which the pilot or aircraft shall land.
Georgia Legal Code