(1) During the transition period, an NCDC policy still in effect may be:
(a) revoked wholly or partly by the National Capital Plan; or
(b) varied under Division 4 or 5.
(2) If:
(a) a provision of the National Capital Plan (in this subsection called the revoking provision ) has revoked an NCDC policy or part of such a policy; and
(b) the revoking provision is disallowed under section 22;
the disallowance revives the policy, or the part of the policy, as the case may be, from the date of the disallowance as if the revoking provision had not taken effect.