Latest Version
Latest Version of the Machine Readable Codes
From the Manual on Codes (WMO-No. 306), Volume I.2
Valid: 1 June 2026
The zip files contain machine-readable codes of GRIB, BUFR, and the Common Code Tables that can be incorporated into encoders/decoders. Browse all versions at https://wis.wmo.int/machine-readable-codes.
| Machine Readable Codes | Version | Download |
|---|---|---|
| FM 92 GRIB edition 2 | 37 | zip |
| FM 94 BUFR edition 4 | 46 | zip |
| Common Code Tables | 2026-06-01 | zip |
Last updated: 6 November 2026