xmlns:atom="http://www.w3.org/2005/Atom"
3(1)Before a certificated oil tanker proceeds to sea, the master of the tanker shall produce the certificate to the officer of customs from whom a clearance for the ship is demanded.
(2)Before any oil tanker which is not certificated proceeds to sea, the master of the tanker shall produce to the officer of customs from whom a clearance for the ship is demanded evidence to the satisfaction of the officer that the departure will not be in contravention of section 12 of this Act.
(3)A clearance shall not be granted, and the tanker may be detained, until the certificate or other evidence is so produced.