Depending upon the values being requested, registration requests are
evaluated on a Standards Track Required, Specification Required,
Expert Review, or Private Use basis [RFC8126]
This might give the impression that IANA registrations can be made on a
“Private Use” basis.
RFC 8126 Section 4.1 says about Private Use:
[…] IANA does not record assignments from registries
or ranges with this policy (and therefore there is no need for IANA
to review them) and assignments are not generally useful for broad
interoperability. It is the responsibility of the sites making use
of the Private Use range to ensure that no conflicts occur (within
the intended scope of use).
Maybe it is better to just point at the section giving the actual policies?
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