2. - the International Standards Organisation (ISO); - the International Chamber of Commerce (ICC); and - the International Air Transport Association (IATA) Member States undertake to adopt in their Customs Laws, common principles for the Customs procedures which, in the opinion of CMT, are particularly important in intra-Community trade including: 3. a) Customs formalities applicable to commercial means of transport; b) clearance for home use; c) outright exportation; d) Customs transit; e) drawback; f) temporary admission, subject to re-export in the same Member State; g) temporary admission for inward proceeding; h) free zones; i) postal traffic Member States undertake to develop a single Customs document as support of all Customs