(1)Any organisation for the time being specified in Schedule 1 to this Act is a proscribed organisation for the purposes of this Act; and any organisation which passes under a name mentioned in that Schedule shall be treated as proscribed whatever relationship (if any) it has to any other organisation of the same name.
(2)The Secretary of State may by order made by statutory instrument—
(a)add to Schedule 1 to this Act any organisation that appears to him to be concerned in, or in promoting or encouraging, terrorism occurring in the United Kingdom and connected with the affairs of Northern Ireland;
(b)remove an organisation from that Schedule.
(3)No order shall be made under this section unless—
(a)a draft of the order has been laid before and approved by a resolution of each House of Parliament; or
(b)it is declared in the order that it appears to the Secretary of State that by reason of urgency it is necessary to make the order without a draft having been so approved.
(4)An order under this section of which a draft has not been approved under subsection (3) above—
(a)shall be laid before Parliament; and
(b)shall cease to have effect at the end of the period of forty days beginning with the day on which it was made unless, before the end of that period, the order has been approved by a resolution of each House of Parliament, but without prejudice to anything previously done or to the making of a new order.
(5)In reckoning for the purposes of subsection (4) above any period of forty days, no account shall be taken of any period during which Parliament is dissolved or prorogued or during which both Houses are adjourned for more than four days.
(6)In this section “organisation” includes any association or combination of persons.