(1) Approval of an acquisition is effective for such period as the FCA may specify in writing.
(2) Where the FCA has specified a period under subsection (1), it may extend the period.
(3) Where the FCA has not specified a period, the approval is effective for one year beginning with the date -
(a) of the notice given under section 301G(3)(a);
(b) on which the FCA is treated as having given approval under section 301G(5); or
(c) of a decision on a reference to the Tribunal which results in the person receiving approval.