I have reviewed  the document. Looks  simple and fine.
I have a question :  Since it is proposing to amend RFC 2850 with a reference to an I.D. " The RFC Editor function is defined under the authority of the IAB by
   [I-D.iab-rfcefdp-rfced-model]", I am wondering  if this document has any dependency on I-D.iab-rfcefdp-rfced-model becoming a RFC?  Are they progressing in parallel?
If this  I.D. reference is not an issue, this document is ready  from my point of view.