54. The person-in-charge of a conveyance other than a vessel or his duly authorised agent shall-(a) deliver to the appropriate officer an export manifest in duplicate in such form as may from time to time be prescribed by the Board signed by the person-in-charge or the agent specifying all goods or stores entered in the import manifest, and not landed or transhipped or consumed on board the conveyance;(b) deliver to the appropriate officer such bills of export or other documents as such officer acting under the general instructions of the Commissioner of Customs requires; and(c) answer such questions respecting the departure and destination of the conveyance as are put to him by the appropriate officer.