There are many more bus services that ply within the entire Changi Estate. Several notable locations with bus services running to them include, the Changi Airfreight Centre that have services 9, 19 and 89, operating within it. Access to the airfreight centre is restricted and all buses entering the centre are individually checked by auxiliary police officers to ensure that all passengers have valid passes. Commuters wishing to enter the airfreight centre and do not have the required passes are to alight at the Police Pass Office bus stop to obtain their passes. The ALPS Terminal, which is next to the airfreight centre, as well as the Tanah Merah Ferry Terminal are only accessible via bus service 35. However access to both of the locations are not restricted.