The validity of a regional public transport plan is not affected by—
(a) a change made to, or renewal of, the approval or variation of a regional land transport strategy; or
(b) the failure of a regional council to complete the renewal of—
(i) a regional land transport strategy within the time required by section 176(1)(b) of the Land Transport Act 1998; or
(ii) the regional public transport plan within the time required by section 16(1)(b); or
(b) a failure by a regional council (or in the case of the Auckland region, the Auckland Regional Council) to approve a regional land transport strategy within the time required by section 74 of the Land Transport Management Act 2005; or
(ba) the failure of a regional council to complete the review of the regional public transport plan within the time required by section 18(1)(b); or
(c) the inclusion of any matter that—
(i) is not referred to in a regional land transport strategy; and
(ii) is not inconsistent with a provision in that strategy.