Amendment procedures

A list of Manuals and Guides for which the fast track (simple) and between sessions (standard) procedures are permitted is available on this wiki.

Current consultations on Manuals and Guides

Consultation	Consultation summary	Type	Closing date
There are no current consultations.

Approved updates

Approved updated to manuals and guides are shown on the web page for that manual.

• WMO-No. 1060 Manual on WIS
• WMO-No. 1061 Guide to the WIS

• WMO-No. 386 Manual on the GTS

• WMO-No. 306 Manual on Codes Volume I.1
• WMO-No. 306 Manual on Codes Volume I.2
• WMO-No. 306 Manual on Codes I.3