3GPP 21.900 v20.0.0 — the document's own text
3.2 Registration of code points
Taught in 1. Why anybody writes a standard down (How standards actually get made, in depth), 2. The shape of 3GPP, and what the record does not say about it (How standards actually get made, in depth), 1. Why anybody writes a standard down (How standards actually get made, overview), 2. Who writes them — two organisations, two habits (How standards actually get made, quick start), 4. Looking it up yourself, and what the record will not tell you (How standards actually get made, quick start).
In the course of 3GPP's work, it will from time to time be necessary to register code points in protocols maintained by bodies other than 3GPP, for example, Multipurpose Internet Mail Extensions (MIME) types registered with the Internet Assigned Numbers Authority (IANA, http://www.iana.org/).
Wherever possible, registration of such code points shall be entrusted to the 3GPP Support Team rather than being performed by an individual delegate. Since 3GPP is not a legally constituted entity, the Support Team shall register such code points in the name of one of the Organizational Partners on behalf of all the Organizational Partners of 3GPP.