63.—(1) The provisions included in a determination, under regulation 62, shall take effect from a date specified in the determination; and different dates may be specified in relation to different provisions.
(2) The making of a determination under regulation 62 in relation to any directions which does not prevent the making of further determinations under that paragraph in relation to the same directions.
(3) The provision included in a determination by virtue of regulation 62(3) may include—
(a)requirements that the Department be satisfied as to any specified matter; and
(b)requirements that the Department authorise or consent to any specified matter.
(4) The provision so included may also include provision as to the time at which any contract for the carrying out of work to which the determination relates (and which is not previously discharged) is to be taken to be frustrated by the determination.
(5) A determination under regulation 62 shall have effect in spite of any statutory provision under or by virtue of which the Executive is required or authorised to carry out any work to which the determination relates.