10(1)A reference to—
(a)a particular Ministry of Northern Ireland; or
(b)the Minister in charge of a particular Ministry,
shall, in relation to a function, be construed as a reference to the Northern Ireland department which exercises that function or to the Northern Ireland Minister in charge of that department.
(2)A reference to an unspecified Ministry shall be construed as a reference to a Northern Ireland department.
(3)This paragraph applies to enactments and instruments passed or made before 1st January 1974.