Meteorological information provision State responsibility

It is also provided in the Annex that close haison shall be maintained between those concerned with the supply and those concerned with the use of meteorological information on matters which affect the provision of meteorological service for international air navigation. Furthermore, States have responsibility establish one or more aerodrome and/or other meteorological offices which shall be adequate for the provision of the meteorological service required to satisfy the needs of international air navigation. ... 

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