Adoption of amendments to the Manual on Codes (WMO No. 306) by the fast-track procedure

In accordance with the "Procedures for Maintaining Manuals and Guides Managed by the Commission for Basic Systems" (Resolution 21 (Cg-17)), the amendments to the Manual on Codes Volume I.2 and Volume I.3, by the fast-track procedure have been approved by the Expert Team on Data Standards and the President of the Standing Committee on Information Management and Technology (SC-IMT). The President of WMO has adopted the amendments on behalf of Executive Council in accordance with the Procedures.The proposed implementation date of the amendments is 16 November 2020.  For more details, the amendments are posted at