44.—(1) An aircraft which is not registered in the United Kingdom shall not fly in controlled airspace notified for the purposes of paragraph (1) of article 43 unless:
(a)it is so equipped with area navigation equipment as to comply with the law of the country in which the aircraft is registered in so far as that law requires it to be equipped when flying within any specified areas; and
(b)the said equipment is capable of being operated so as to enable the aircraft to maintain the navigation accuracy notified in respect of the airspace in which the aircraft is flying, and it is so operated.
(2) An aircraft which is not registered in the United Kingdom shall not, when flying in controlled airspace notified for the purposes of paragraph (2) of article 43, be navigated by means of area navigation equipment unless:
(a)the said equipment complies with the law of the country in which the aircraft is registered in so far as that law requires it to be so equipped when flying within any specified areas; and
(b)the said equipment is capable of being operated so as to enable the aircraft to maintain the navigation accuracy notified in respect of the airspace in which the aircraft is flying, and it is so operated.