(1) The following written material may be incorporated by reference in a regional public transport plan:
(a) standards, requirements, or recommended practices of international or national organisations:
(b) standards, requirements, or recommended practices prescribed in any country or jurisdiction:
(c) any other written material that deals with technical matters and is too large or impractical to include in, or print as part of, the plan.
(2) Material may be incorporated by reference in a plan—
(a) in whole or in part; and
(b) with modifications or additions specified in the plan.
(3) Material incorporated by reference in a plan has legal effect as part of the plan.
(4) A control may incorporate material by reference only if referring to or incorporating, in whole or in part, with or without modification, a standard, requirement, or rule (related to the subject matter of the control) of—
(a) Standards New Zealand; or
(b) a comparable organisation in a jurisdiction other than New Zealand.