Merge pull request #33 from core-wg/pr-temporary-allocation

add section on temporary C-F registrations

draft-ietf-core-cf-reg-update.md

@@ -196,6 +196,19 @@ In all other cases, the policy will be Expert Review, following the checklist de
 
 A new column with the title "Note" has been added to the registry, which contains information about the expected review procedure.
 
+## Temporary Content-Format Registrations
+
+This section clarifies that the CoAP Content-Formats registry allows temporary registrations within the 0-255 and 256-9999 ranges.
+The range 10000-64999 does not allow temporary registrations.
+
+A temporary registration may be created for example by an IANA early allocation action, requested by the authors of an Internet Draft in the IETF stream.
+Or it may be created because the referenced media type is still provisional (that is, included in the IANA Provisional Standard Media Type Registry).
+
+A temporary registration is marked by an IANA note with the label "TEMPORARY" in the corresponding registry entry.
+Once the required review procedure for the temporary ID has successfully completed, and the referenced media type is included in the IANA Media Types registry, IANA must remove the "TEMPORARY" label so that the entry becomes permanent.
+If the requested temporary entry does not successfully pass its required review procedure, IANA must remove the entry again and set the Content-Format ID value back to "Unassigned".
+This may happen for example when an Internet-Draft requesting a Content-Format ID is abandoned, or when the referenced provisional media type is abandoned.
+
 ## Expert Review Procedure {#checks}
 
 The Designated Expert is instructed to perform the Expert Review, as described by the following checklist: