CHAPTER 1 GENERAL PRINCIPLES 1.1. Standard The Definitions, Standards and Transitional Standards in this Annex shall apply to Customs procedures and practices specified in this Annex and, insofar as applicable, to procedures and practices in the Specific Annexes. 1.2. Standard The conditions to be fulfilled and Customs formalities to be accomplished for procedures and practices in this Annex and in the Specific Annexes shall be specified in national legislation and shall be as simple as possible. 1.3. Standard The Customs shall institute and maintain formal consultative relationships with the trade to increase co-operation and facilitate participation in establishing the most effective methods of working commensurate with national provisions and international agreements.