Appendix II to Annex C.1

The size of the layout key is ISO size A4 (210 x 297 mm, 8,27 x 11,69, inches). The form should be provided with a 10 mm top margin and a 20 mm left-hand filing margin. Line spacing should be based on multiples of 4,24 mm (1/6 inch) and width-spacing on multiples of 2,54 mm (1/10 inch). The layout should be in conformity with the Economic Commission for Europe (ECE) layout key, as illustrated in Appendix I. Minor deviations in the exact size of boxes etc., are permissible if required for particular reasons in the issuing country, such as the existence of non-metric measurement systems, features of national aligned systems of documents, etc.

Countries may determine standards concerning the weight per m² of the paper, and the use of a machine-turned background to prevent falsification.

The standardization comprises only questions of size and layout; guiding words included in the layout key are intended only to indicate the nature of the information which should appear in a given place. Accordingly each country remains free to replace these words in its national form by such wording as it considers more appropriate provided that this wording does not affect the nature of the information as indicated in the layout key.

In addition it is open to administrations to omit from their forms items in the layout key which they do not require. The spaces which thus become vacant may be used for official purposes.

Additional items required by administrations which are not provided for by the layout key may be allocated to the ‘free disposal area’.