A file containing this procedure is available.

Purpose

1. This procedure is intended to be used primarily during the migration from Traditional Alphanumeric Codes (TAC) to TDCF.

Notification of introduction of message

2. The originating centre for the new TDCF message notifies the WMO community of the new message by:

2.1. Creating and publishing a WIS Discovery Metadata record describing the message and the date that it is intended to start distributing the message; this metadata record must contain contact details of how to report problems with the message to the originator (using the