1Where an Order is made under section 2(l)(a) of this Act—
(a)the interim period referred to in subsection (3) of section 1 of the [1974 c. 28.] Northern Ireland Act 1974 shall expire on the coming into force of the Order ; but
(b)if the Order is revoked that period shall run again for the period of one year beginning with the date of revocation and may be continued thereafter as provided by subsection (4) of that section.