Operations and aircraft fleet mix are different at every airport, as are the established land uses that surround an airport. The combination of these factors plays heavily into the types of noise concerns expressed by local residents. Because noise concerns are different for most airports, noise abatement programs are established to address the specific concerns for that airport and surrounding environs. This section offers information on the operation of SAC and explains the specific noise abatement programs that have been established and implemented for SAC.