Transfers for addresses in category C are covered by the existing "Policies for the transfer of historical Internet resources" in the policy document, "Policies for historical Internet resources in the APNIC Whois Database": http://www.apnic.net/historical-resources#transfer
Thanks Sam. for this clarification. This would imply that the transfer policy we are considering here could then be phrased as related to addresses held by current APNIC account holders, noting that the historical address transfer policy covers other scenarios of transfers and are not within scope of this proposal.
thanks, Geoff Disclaimer: um, well, same as last time really - these are all my words