Chapter:	312A	Title:	Civil Aviation (Aircraft Noise) (Certification) Regulations	Gazette Number:	E.R. 1 of 2012
Regulation:	3	Heading:	Exemptions	Version Date:	09/02/2012

(1) Section 3 of the Ordinance shall not apply to an aircraft which lands or takes off in Hong Kong-

(a) where this is necessary for the safety of any aircraft or any of its passengers;
(b) where, as a result of operational necessity, passengers or goods are being carried in that aircraft, being an aircraft of a type not normally used for that carriage, and the Director authorizes such aircraft to land or take off;
(c) while it is being tested with the permission of the Director for the purpose of determining whether the aircraft complies with the relevant standards of noise; or
(d) while it is being tested with the permission of the Director in connection with the issue or re-issue of a certificate of airworthiness by any competent authority, whether of Hong Kong or elsewhere.