15. —Notwithstanding section 4(4) of the Principal Act, the Minister may give the Agency directions as to general policy, or guidelines, in relation to the performance by it of the functions delegated to, or conferred on, it by or under this Part only after consultation with F8[…] such other Ministers of the Government as the Minister considers appropriate, and the Agency shall comply with any such directions and perform those functions in accordance with any such guidelines.