What is ide w.r.t LRIT ? who is main renowned international organisation responsible for oversee the operation of ide ?

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FOLLOW

International Data Exchange.  US Coast Guard is a temporary organization responsible and deputed by IMO for IDE.
Exemptions from LRIT requirements are only possible in cases as follows:
a. When the vessel is not engaged in international voyages or is operating exclusively within the territorial waters of a single country,
b. When the vessel is operating exclusively in GMDSS sea area A1 and fitted with AIS,
c. There is long term lay-up or conversion with all shipboard system non-operational and without shipboard power,
d. Vessel will enter into long term lay-up or conversion with all shipboard systems non-operational and without shipboard power.

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FOLLOW

International Mobile Satellite Organization (IMSO) acts as the International LRIT Coordinator, appointed by IMO to coordinate the establishment and operation of the international system for the Long Range Identification and Tracking of Ships (LRIT) worldwide.
The IDE is now located at Lisbon, Portugal.