Hong Kong Regulations

CIVIL AVIATION (AIRCRAFT NOISE) (CERTIFICATION) REGULATIONS - REGULATION 7

Cancellation of noise certificate

The Director or the Deputy Director, if sufficient grounds have been shown to
his satisfaction, may after due enquiry, by written notice to the operator or
owner of an aircraft, cancel the noise certificate in respect of the aircraft
if it appears to him that-

   (a)  the information supplied to him under regulation 4 was false or
        misleading; or

   (b)  the aircraft no longer complies with the relevant standards of noise.