266.—(a) Notwithstanding the repeal of any enactment by this Act, development plans made under Part III of the Act of 1963 shall continue in force and shall be deemed to have been made under and in compliance with this Act.

(b) Notwithstanding the repeal of any enactment by this Act, where a planning authority has given notice under section 21 of the Act of 1963 of the preparation of a draft development plan, Part III of the Act of 1963 shall continue to apply in respect of that draft development plan until the making of such plan.

(2) (a) Where, on the commencement of Part II, a development plan is in force for longer than 4 years, the planning authority concerned shall, not later than one year after such commencement, initiate the notification procedures under section 11.

(b) Except as is provided for in paragraph (a) and in subsection (1)(b), the provisions of Part II in relation to the review of development plans and the preparation of new plans shall apply to all existing development plans.

(c) For the purposes of paragraphs (a) and (b), the reference to the development plan shall be a reference to the development plan in force for the functional area of the planning authority which covers all, or the greater part of, that functional area and—

(i) a development plan for a scheduled town, within the meaning of section 2 of the Act of 1963, or

(ii) a development plan covering part only of the functional area of the authority (not being the greater part),

shall be deemed not to be a development plan for the purposes of those paragraphs.

(3) A reference in any enactment or instrument to a development plan shall be deemed to be a reference to a development plan as defined in this Act.