Definition: Aircraft by noise characteristics

Transport

i) Non-noise certificated aircraft
Aircraft not certificated against international noise requirements.
ii) Chapter II aircraft
Aircraft meeting the ICAO Chicago Convention Annex 16 Chapter II specifications.
iii) Chapter III aircraft
Aircraft meeting the ICAO Chicago Convention Annex 16 Chapter III specifications.
iv) Chapter IV aircraft
Aircraft meeting the ICAO Chicago Convention Annex 16 Chapter IV specifications.