9(1)Section 17 of that Act (general or urgent directions under sections 12 and 14) is amended as follows.
(2)In subsection (1) for “or 14” there is substituted “, 13, 13A or 14”.
(3)In subsection (2)—
(a)for “either” there is substituted “any”, and
(b)in paragraph (a) after “class of aircraft,” there is inserted “in relation to such aerodrome or part of an aerodrome, in relation to such land outside an aerodrome, in relation to such activities,”.