Dear colleagues, In this email thread, the RIPE NCC was asked to provide a cost estimate for the implementation of policy proposal 2012-07. The estimated total costs for implementation of this proposal are between 100 kEUR and 350 kEUR, spread out over several years. These costs include things such as setting up the appropriate fields in the RIPE Database, internal software development, and administrative overhead - including creating the appropriate legal contracts. Whether the actual costs are closer to the upper or lower end of this estimate will be determined by how many legacy holders decide to enter into a contractual relationship with the RIPE NCC or a sponsoring LIR. The smaller estimate reflects 25% of legacy holders, while the larger estimate represents 100% of legacy holders deciding to enter into a contractual relationship. Note also that these costs have not been offset against the additional income that would likely come as the result of some legacy holders deciding to become RIPE NCC members. There are obvious parallels between implementation of this policy and the implementation of policy proposal 2007-01, "Direct Internet Resource Assignments to End Users from the RIPE NCC". However, the overall number of organisations and Internet number resources related to this proposal is lower. Also, it is optional, rather than mandatory, for organisations to enter into a contractual relationship with the RIPE NCC. For this reason, the operational and financial impact of implementation will be considerably lower. Kind regards Andrew de la Haye Chief Operations Officer RIPE NCC