4-Dec-2013 Source: CAA
Information on the current noise certificate, such as the certificated noise levels, is now available on G-INFO [the online register of British aircraft. Ed] against individual aircraft.
If noise certificate data is available against a particular aircraft an additional label called Noise Certificate Information will appear on the main aircraft results screen. Further noise certificate information on the specific aircraft is available by clicking on the hyperlink.
Not all aircraft require a noise certificate, for further information see Noise Certificates.
For general information on noise and emissions please see Aircraft Noise.
Noise certificate information for microlight aircraft is not currently displayed.