Page ContentThe use of this web site constitutes agreement with the following terms and conditions: ICAO maintains this web site (the “Site”) as a courtesy to those who may choose to access the Site (“Users”). The information presented herein is for informative purposes only and as such is not an official record. ICAO  grants permission to Users to visit the Site and to download, preprint and copy the information, documents and materials (collectively, “Materials”) from the Site for the User’s personal, non-commercial use, without any right to resell or redistribute them or to compile or create derivative works therefrom, subject to the terms and conditions outlined below, and also subject to more specific restrictions that may apply to specific Material within this Site. The contents of materials that may be expressly attributed to third parties are the property and responsibility of such third parties and not of ICAO and their presence does not imply endorsement or approval of their content by ICAO. Use of these documents is subject to the legal terms and conditions contained therein. ICAO administers this Site. All Material on this Site from ICAO appears subject to the present Terms and Conditions. Unless expressly stated otherwise, the findings, interpretations and conclusions expressed in the Materials on this Site are those of the various ICAO staff members, consultants and advisers to ICAO Secretariat who prepared the work and do not necessarily represent the views of ICAO or its Member States. This Site may contain links to web sites not under the control of ICAO. ICAO provides these links as a convenience for users of its Site and is not responsible for their contents. The presence of a link does not imply endorsement or approval of its contents by ICAO. Materials provided on this Site are provided “as is”, without warranty of any kind, either express or implied, including, without limitation, warranties of merchantability, fitness for a particular purpose