48 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—
a Minister of the Crown or a department of the government of the United Kingdom;
a Northern Ireland department;
a statutory undertaker within the meaning given by section 250(1) of the Planning Act (Northern Ireland) 2011;
a district council;
any other body established under a statutory provision;
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.