(1) For sections 301 and 302, a former SSTP continues in force after the commencement until the earlier of the following:
(a) the approval of the former SSTP is revoked by the CHO under subsection (2);
(b) the day that is 2 years after the commencement.
(2) The CHO may revoke, in writing, the approval of a former SSTP that continues to remain in force under subsection (1).