37. (1) No inland ship shall proceed on any voyage or be used for any service on inland water unless it is manned in accordance with the provisions of sub-section (2). (2) The Director-General may, by order notified in the official Gazette, require an inland ship to have such number of ²[inland engineers, masters, engine-drivers and ratings] of such grades as may be specified in the order. (3) The Director-General may exempt an inland ship or any category of inland ship from any requirement of an order made under sub-section (2). (4) An exemption granted under sub-section (3) may be in respect of a particular period or of one or more particular voyages. (5) Notwithstanding anything contained in this section Director-General may relax the requirement of this section in respect of a person if-(a) such person satisfies the Director-General that he is reasonably capable of discharging the duties and responsibilities of the trade for which he is sought to be employed or engaged; (b) the owner of the ship satisfies the Director-General that despite due efforts persons with requisite certificate could not be available for employment or engagement.