Clause 5

The Minister may, in his discretion, either generally or in any particular case, and either permanently or for such period or periods as he may think fit, exempt any person or class of persons, or any conveyance or class of conveyance, or any goods or class of goods from all or any of the provisions of this Act or any regulations made thereunder; and in granting such exemption the Minister may impose such conditions as he may think fit.