(1) A copy of material incorporated by reference in a regional public transport plan, including any amendment to, or replacement of, the material, must be—
(a) certified by the chief executive or an authorised officer of the regional council as a correct copy of the material incorporated by reference; and
(b) retained by the regional council.
(2) The production in proceedings of a certified copy of the material is, in the absence of evidence to the contrary, sufficient evidence that the material is incorporated by reference in the regional public transport plan.