Notification of differences. The at

Notification of differences. The attention of Contracting States is drawn to the obligation imposed by Article 38 of the Convention by which Contracting States are required to notify the Organization of any differences between their national regulations and practices and the International Standards contained in this Annex and any amendments thereto. Contracting States are invited to keep the Organization currently informed of any differences which may subsequently occur, or of the withdrawal of any differences previously notified. Contracting States are also invited to notify the Organization of any differences between their national regulations and practices and the special recommendations contained in Attachment A to this Annex. A specific request for notification of differences will be sent to Contracting States immediately after the adoption of each amendment to this Annex