OID repository
OID Repository
Display OID:
Action itemjoint-iso-itu-t(2) Action itemalerting(49)  

Navigating the OID tree

child OIDs: Child OID separator authority(0) Child OID separator country-msg(1) Child OID separator org(2) Child OID separator org-msg(3) Child OID separator
Separation line
OID description

OID: (ASN.1 notation)
(dot notation)
(OID-IRI notation)


World Meteorological Organization (WMO)


In applications and services which support alerting, it is necessary to identify various information objects. Subsequent OIDs identify content included in alert messages or otherwise associated with the activity of alerting.

The procedures (and criteria for acceptance) for allocating subsequent arcs are described in WMO/TD No. 1556 "Administrative procedure for registering WMO alerting identifiers."

During the Common Alerting Protocol (CAP) Implementation Workshop, 17-18 June 2014, Negombo, Sri Lanka, clarification was sought on use of alerting OIDs by organizations that cannot issue public warnings, yet perform private or restricted alerting to those governmental authorities who issue public warnings. Examples of such organizations include motorway control centres, airports, power plants, chemical plants, and ambulance services. Their private alerts typically inform alerts issued publicly by alerting authorities such as fire-fighters, police, civil protection agencies, environmental authorities, etc. For this reason, it would be very useful if all alerting organizations (governmental as well as others) were to use officially registered alerting OIDs. Subsequent to the workshop, WMO clarified that it does not place any policy constraints on which alerting authorities are designated by national WMO Members, nor any constraints as to whether such authorities issue alerts publicly or privately. Therefore, assignment of OIDs nationally for use with private or restricted alerts from any recognized authority is entirely within the purview of each Permanent Representative with WMO.

WMO maintains a publicly accessible Register of Alerting Authorities. In collaboration with the WMO Public Weather Services Programme, entries in the WMO Register of Alerting Authorities shall be maintained by the editors designated by the Permanent Representatives (PRs) to the WMO of national WMO Members.

See a presentation on OIDs and their use by WMO.

Current Registration Authority    


The contact information is not publicly available but you can receive it by email.

Last update:

22 April 2021

First Registration Authority    


Eliot Christian

To contact the registration authority, replace "&" by "@" in the email address


7 bis, avenue de la Paix
Case postale 2300
CH-1211 Geneva 2

Short URLs for this page:

Disclaimer: The owner of this site does not warrant or assume any liability or responsibility for the accuracy, completeness, or usefulness of any information available on this page (for more information, please read the complete disclaimer).
All rights reserved, Orange © 2024
Tree display Parent OID: alerting(49) First child OID: authority(0)
Separation line
OID helper Webmaster Bullet 16 Nov 2021 Bullet Page top