In this Act—

• “the 2009 Act” means the Marine and Coastal Access Act 2009;

• “act” includes omission;

• “the Department” means the Department of the Environment;

• “notice” means notice in writing;

• “public authority” means any of the following—

  1. a

     a Minister of the Crown or a department of the government of the United Kingdom;

  2. b

     a Northern Ireland department;

  3. c

     a statutory undertaker within the meaning given by section 250(1) of the Planning Act (Northern Ireland) 2011;

  4. d

     a district council;

  5. e

     any other body established under a statutory provision;

  6. f

     the holder of any office under the Crown or any office established under a statutory provision;

• “statutory provision” has the meaning given by section 1(f) of the Interpretation Act (Northern Ireland) 1954.