17.—(1) The administrator must be notified in writing with the application for registration as a participant in respect of—
(a)a government decision in relation to qualification for a phase;
(b)a local authority decision.
(2) A government decision in relation to participation during a phase or any part of a phase must be notified in writing as soon as possible to the administrator.
(3) A notification required under sub-paragraph (1) or (2) must—
(a)state the period for which the decision has effect, which may commence before the date of the notification but must not commence in a phase which has completed; and
(b)identify the public bodies affected.
(4) A government decision or local authority decision may be varied or revoked in writing.