Export declaration for couriers: mandatory certification that consignments are only non commercial documents and cleared by consignors. Courier Shipping Bill I (Form No. 107 A) requires carrier and shipment details and signatures for customs processing. The authorised courier must declare that it has obtained authorization from each consignor to act as agent for clearance and that the shipment comprises only documents of no commercial value and does not include goods liable to duty or goods prohibited or restricted from export; the form is signed and stamped by the authorised courier and the proper officer of customs.