¹[30. (1) Subject to the other provisions of this Ordinance, a certificate of registry of an inland ship granted under this Ordinance shall remain valid for 30 (thirty) years of her age from the date of first registry unless the ship is rendered total loss, scrapped or otherwise transferred within the said period : Provided that the validity of the registration may be extended, if it is found that the inland ship is fit for plying to the satisfaction of the registrar after special docking survey in a manner as may be prescribed, for a maximum period of five years and continued for the same further period subject to special docking. (2) Where an inland ship, other than dumb barges and other crafts which are not propelled but are towed or pushed by a propelled vessel, registered under this Ordinance is not surveyed for three consecutive years, referred to in section 11(1) the registration of the inland ship shall cease to be in force from the date of expiration of the last survey. (3) Where an inland ship has been laid up or scrapped or otherwise not in use, the owner of the ship shall immediately inform the registrar in writing within thirty days of such events.]