After section 5 of the Principal Act , the following section is inserted in Part 1:

5A.     Authorised person may exercise powers in respect of accretions from sea

An authorised person may exercise his or her powers under this Act in respect of –

(a) any accretion from the sea, whether natural or unnatural; and

(b) any part of the seashore to the low-water mark; and

(c) any bridge, jetty, wharf, boat-house or other structure; and

(d) any area of the sea in, on, over or under which any building or building work is related to, or affects, any adjacent land.