TAG Aviation has introduced a new measure to manage noise at the UK’s Farnborough Airport. Since January 1, jet aircraft that do not meet the ICAO Chapter/Stage IV standard have been banned from using the airport. This noise standard is ICAO’s most stringent and quietest classification for jet aircraft. To ensure compliance, TAG requires approved noise certificates before permission can be granted to land or take off at the airport. Approximately 300 movements last year would not meet the new standard, it said.