On 8 February 2010 the OECD released for public comment draft documentation (Implementation Package) for implementing a streamlined procedure for portfolio investors to claim reductions in withholding rates pursuant to tax treaties or domestic law in the source country. The draft documentation was developed to provide standardised documentation that could be used by countries that wish to adopt the “best practices” described in a report released by the OECD on 12 January 2009. The OECD has now published the comments received on this draft Implementation Package.