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My proposal would be that IANA would have to perform the subsequent allocation within this 30 day period, even if they might not be able to obtain advice or an expertise (for whatever reason) from any other party they might have decided to ask for advice.

sure, if we can we do the same for rir to lir

No problem with that, although I don't see the need for global coordination here. To me this sounds like a RIR-Customer service-contract aspect. Wilfried.