The OECD Transfer Pricing Guidelines clarifies these issues and were originally approved by the OECD Council in 1995. In this 2009 edition, some amendments have been made to Chapter IV, primarily to reflect the adoption, in the 2008 update of the Model Tax Convention, of a new paragraph 5 of Article 25 dealing with arbitration, and of changes to the Commentary on Article 25 on mutual agreement procedures to resolve cross-border tax disputes.