Basis " the complement that sells about carrying out beijing to already bought public housing to appear on the market executive method concerns an issue informs " regulation , deal with already bought public housing to trade formalities of change the name of owner in a register , sell the person cannot refer the contract of public housing business that signs with unit of former property right , the proof that can change the archives material of carry out room or unit of former property right to issue with the room deals with formalities of change the name of owner in a register as the basis 根据《关于执行北京市已购公有住房上市出售实施办法有关问题的补充通知》规定，办理已购公有住房交易过户手续，出售人无法提交与原产权单位签订的公有住房买卖合同的，可以以房改售房的档案材料或原产权单位出具的证实作为依据办理过户手续。
