Article 15
1. The provisions of this Annex shall apply from 1 July 2004 to 31 December 2012. 2. They shall be reviewed at the end of the fourth year particularly in the light of their budgetary implications. To this end, the Commission shall submit a report to the European Parliament and the Council and, where appropriate, a proposal to amend this Annex on the basis of Article 283 of the EC Treaty." 102) The following Annexes are added: "ANNEX XII RULES FOR IMPLEMENTING ARTICLE 83A OF THE STAFF REGULATIONS CHAPTER 1 GENERAL PRINCIPLES