(1) A regional public transport plan adopted under section 9—
(a) must, at all times, be kept current for a period of not less than 3 years in advance, but not more than 10 years; and
(b) may be renewed from time to time, but must be renewed—
(i) at least once every 3 years:
(ii) at the same time as, or as soon as practicable after, the relevant regional land transport strategy is renewed.
(2) A regional council that adopts a regional public transport plan may amend it at any time while it is current.
(3) Subject to subsections (4) to (7), the provisions of this Act that apply to the adoption of a regional public transport plan apply with the necessary modifications to an amendment to a regional public transport plan.
(4) A regional council that proposes to significantly amend a regional public transport plan must meet the consultation requirements specified in section 15, except where the regional council is satisfied that it is not necessary to consult any person or organisation other than those persons or organisations that it considers may be affected or have an interest in the proposed amendment.
(5) If a regional council proposes a minor amendment to a regional public transport plan, or the exception in subsection (4) applies, then the regional council is only required to consult those persons or organisations likely to be affected by or have an interest in the proposed amendment.
(6) The exception in subsection (4) does not apply to an amendment that would alter a regional council’s general approach in determining whether a proposed amendment to a regional public transport plan is significant.
(7) A regional council may, by resolution publicly notified, correct errors in a regional public transport plan but only if the correction does not affect an existing right, interest, or duty of any person or organisation that is affected by or has an interest in the regional public transport plan.