62 STAT.] MULTILATERAL-UNIVERSAL POSTAL UNION-JULY 5, 1947 3401 CHAPTER VI. Miscellaneous provisions. Art. 24 . Designation of air-mail correspondence. 25. Designation of air-mail dispatches. 26. Method of dispatching air-mail correspondence. 27. Waybills and delivery lists of dispatches. 28. Transfer of air-mail dispatches. 29. Annotations to be made on the letter bills, insured bills and labels of air-mail dispatches. 30. Customs clearance of dutiable correspondence. 31. Return of empty air-mail sacks. 32. Application of the provisions of the Convention and Agreements. 33. Effective date and duration of the Provisions adopted. 2. FINAL PROTOCOL OF THE AIR-MAIL PROVISIONS OF THE CONVENTION. I. Air-transportation charges for closed mails. II. Option of reducing the weight unit for air-mail correspondence. III. Exceptional surcharges. APPENDIX. Forms AV 1 to AV 7.['] 'See French text, pp. 3293-3299.
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