39Directions relating to the environment
(1)The Secretary of State may give such directions as he thinks are necessary or expedient—
(a)to prevent or deal with noise, vibration, pollution or other disturbance attributable to aircraft used for the purpose of civil aviation;
(b)to limit or mitigate the effects of such noise, vibration, pollution or disturbance.
(2)Directions under this section may be given to—
(a)a licence holder or licence holders generally;
(b)a person who is authorised by an exemption to provide air traffic services (an authorised person) or authorised persons generally.
(3)A direction under this section may be of a general character or may require a licence holder or an authorised person to do or not to do a particular thing.
(4)A direction under this section may include provision requiring persons to have regard to guidance which relates to the environment and which the Secretary of State may issue from time to time.
(5)In so far as a direction under this section conflicts with the requirements of section 38 or 93 or of an order under section 94, the direction is to be disregarded.
(6)In so far as a direction under this section conflicts with the requirements of an enactment or instrument other than section 38 or 93 or an order under section 94, the requirements are to be disregarded.
(7)Before giving a direction under this section to a particular licence holder or authorised person (as opposed to licence holders or authorised persons generally) requiring him to do or not to do a particular thing, the Secretary of State must consult—
(a)that licence holder or authorised person;
(b)the CAA.