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7754 Vol 2 Flyleaf - ICAO Public Maps

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AIS<br />

VIII-A3<br />

d) the selection of items of operational significance which<br />

require immediate notification.<br />

27. The NOTAM code provides the basis for the<br />

determination of the qualifiers TRAFFIC, PURPOSE and<br />

SCOPE.<br />

28. In the evolution of the regional system, the geographical<br />

reference system based on LAT/LONG (WGS-84)<br />

coordinates should be used as a standard.<br />

29. When service based on bilateral and/or<br />

multilateral coordination and cooperation is provided,<br />

fallback procedures should be established.<br />

SYSTEM QUERY PROCEDURES<br />

30. The system should provide a common set of<br />

query procedures.<br />

31. The common set of query procedures should<br />

make the best use of the database management system<br />

applied in order to give rapid response to simple and short<br />

requests.<br />

32. The query procedures should provide<br />

user-friendly access to the system without assistance of AIS<br />

personnel to obtain the required information.

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