25. —If the function conferred on the Minister by section 20(1) stands delegated to the Agency by virtue of an order under section 23 , the Minister may give directions or guidelines to the Agency in relation to the performance by it of that function or the exercise by it of the power conferred by section 22 or both, and the Agency shall comply with any such directions and perform that function or exercise that power, as the case may be, in accordance with any such guidelines.