(1)Without prejudice to subsection (2)(a) below, the Secretary of State may, after consultation with the CAA, give it such directions of a general character as to the performance of its functions as he thinks it appropriate to give in the interests of national security; and in so far as any directions given in pursuance of this subsection conflict with the requirements of any enactment or instrument relating to the CAA, except section 63 below, those requirements shall be disregarded.
(2)The Secretary of State may, after consultation with the CAA, give it directions to do a particular thing which it has power to do or refrain from doing a particular thing, if the Secretary of State considers it appropriate to give such directions—
(a)in the interests of national security; or
(b)in connection with any matter appearing to him to affect the relations of the United Kingdom with a country or territory outside the United Kingdom; or
(c)in order to discharge or facilitate the discharge of an obligation binding on the United Kingdom by virtue of its being a member of an international organisation or a party to an international agreement; or
(d)in order to attain or facilitate the attainment of any other object the attainment of which is in his opinion appropriate in view of the fact that the United Kingdom is a member of an international organisation or a party to an international agreement; or
(e)in order to enable the United Kingdom to become a member of an international organisation or a party to an international agreement; or
(f)in order to prevent or deal with noise, vibration, pollution or other disturbance attributable to aircraft used for the purpose of civil aviation;
and in so far as any directions given in pursuance of this subsection conflict with the requirements of any enactment or instrument relating to the CAA, except section 63 below, those requirements shall be disregarded.