(1) No ship registered in 11[India] shall be taken to sea from a port or place within or outside 12[India] except under a valid licence granted by a Shipping Authority under this section.
(2) A licence granted under this section may be either a general licence granted by a Shipping Authority under this section.
(3) A general licence shall remain valid until it is revoked by the Sipping Authority which granted it, and a specified voyage licence shall be valid only for the particular voyage for which it is granted.
(4) A licence granted under this section may contain such limitations and conditions as the Shipping Authority granting it may think fit to impose with respect to the trades in which the ship may engage and the voyages which it may undertake, and such limitations and conditions may be imposed so as to apply to the ship wherever it may be, or while in such waters or engaged in such trades or on such voyages, as may be specified.
(5) When a licence ceases to be valid, the person to whom it was granted shall, without unreasonable delay, return it or cause it to be returned to the shipping Authority which granted it.
(6) For the avoidance of doubts it is hereby declared that any licence granted under an order made under Rule 65 of the Defence of India Rules or that rules as continued in force by the Emergency Provisions (Continuance) Ordinance, 1946 (20 of 1946), and valid immediately before the expiry of the said Ordinance shall continue to be valid according to its tenor and shall be deemed to have been granted under this section.
13[3-A. Licences for coasting trade of India. (1) No ship shall engage in the coasting trade of India except under a valid licence granted by a Shipping Authority under this section.
(2) A licence granted under this section may be either a general licence or a specified voyage licence or a licence for a specific period and shall be subject to such conditions as may be specified by the Shipping Authority granting the licence.
(3) The Shipping Authority may in its discretion, at any time, revoke, cancel or modify a licence granted under this section.]