3.—(1) In preparing or amending a marine plan for a marine plan area the Department must take all reasonable steps to secure that the plan is compatible with—
(a)the marine plan for any marine plan area (whether or not within the Northern Ireland inshore region) which is related to that area;
(b)the development plan under Article 4 of the Planning (Northern Ireland) Order 1991 for any area which is related to the marine plan area.
(2) For the purposes of this paragraph, one area is “related to” another if one or more of the following conditions is met—
(a)the one area adjoins or is adjacent to the other;
(b)the one area lies wholly or partly within the other;
(c)the whole or any part of the one area affects or is affected by the whole or any part of the other.
(3) In sub-paragraph (1)(a) “marine plan” and “marine plan area” include a marine plan and a marine plan area within the meaning given by section 51 of the 2009 Act.