Third report from the Commission to the European Parliament and the Council on certain third countries' maintenance of visa requirements in breach of the principle of reciprocityin accordance with Article 1(5) of Council Regulation (EC) No 539/2001 listing the third countries whose nationals must be in possession of visas when crossing the externalborders and those whose nationals are exempt from that requirement, as amended by Regulation (EC) No 851/2005 as regards the reciprocity mechanism. COM (2007) 533 final, 13 September 2007