The Air Navigation (General) (Amendment) Regulations 1973
The Secretary of State in exercise of his powers under Articles 25(2), 28(3) and 61 of the Air Navigation Order 1972(a), as amended(b) and of all other powers enabling him in that behalf, hereby makes the following Regulations:

(a) S.I. 1972/129 (1972 I, p. 366).
(b) The relevant amending instrument is S.I. 1973/1750 (1973 III, p. 5346).
(c) 1889 c. 63.
(d) S.I. 1972/322 (1972 I, p. 1310).