3Prohibition of unlicensed activities
(1)A person to whom this Act applies shall not, subject to the following provisions, carry on an activity to which this Act applies except under the authority of a licence granted by the Secretary of State.
(2)A licence is not required—
(a)by a person acting as employee or agent of another;
or
(b)for activities in respect of which it is certified by Order in Council that arrangements have been made between the United Kingdom and another country to secure compliance with the international obligations of the United Kingdom.
(3)The Secretary of State may by order except other persons or activities from the requirement of a licence if he is satisfied that the requirement is not necessary to secure compliance with the international obligations of the United Kingdom.
(4)An order shall be made by statutory instrument which shall be subject to annulment in pursuance of a resolution of either House of Parliament.