Apologies for the loose language. I was not really thinking of "IANA policy" but rather "names" policy, which really only hits IANA after ICANN implements these policies, turns them into rules and processes, and a registry starts a process which results in the IANA staff receiving a request. Perhaps I was trying to draw a parallel between IETF and RIRs in their relation to the IANA Functions Operations and ICANN (non-IANA) and its relation to the IANA Functions Operations (performed by the IANA staff).
Greg