319.—(1) A requirement under a provision of this Act to publish a notice in a newspaper circulating in the functional area or administrative area of a planning authority or local authority or in any district shall, in relation to an application for permission for development to which Chapter III applies, be deemed to be a requirement to publish the notice in a national newspaper.

(2) A requirement under a provision of this Act to erect a notice on land or affix or attach a notice to a structure shall, in so far as that provision applies to the maritime area, be deemed to be a requirement to publish the notice in a national newspaper on such consecutive number of days (in this subsection referred to as the "publication period") as may be prescribed, and different publication periods may be prescribed in respect of different classes of development or proposed development.

(3) A requirement under a provision of this Act to submit to the Board or a planning authority a notice erected on land or a notice affixed or attached to a structure pursuant to the requirement referred to in subsection (2) shall be deemed to be a requirement to submit to the Board or coastal planning authority concerned the notice published in accordance with the requirement second-mentioned in that subsection.]