About the Manual on GTS
Manual on the Global Telecommunication System (WMO-No. 386)
Annex III to the WMO Technical Regulations
Per Resolution 16 (EC-78), "the Manual on the Global Telecommunication System (WMO-No. 386) will no longer be updated from 31 December 2024"
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Download from the WMO library
Manual on the Global Telecommunication System (WMO-No. 386) [2023 edition]
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~ page update: 06 March 2025 ~