| Aircraft are certified against ICAO (Annex 16) standards. The
present standard is divided into two: Chapter 2 aircraft (aircraft which met the
standard before the noise standard was reinforced) and Chapter 3 aircraft (aircraft
which meet the most stringent standard, that is, after the noise standard reinforcement).
All ANA's aircraft fully complied with the Chapter 3 requirement in 1995. Moreover,
ANA continues to introduce newer, quieter Chapter 3 aircraft, such as the B777-200,
B747-400 and A321.
In Japan, compliance with the quieter Chapter 3 standard will become mandatory
on April 1, 2002. |
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