Integrated Custom, Immigration and Quarantine (CIQ) Complex is a prominent landmark building combining operational and interspatial Southern International Gateway, consisting of the CIQ Complex and the JB Sentral Terminal at Johor Bahru.

The CIQ Complex is divided by levels into 3 main zones for car, motorcycle, bus, lorry and Passenger Processing area, Quarantine Area and 16 CIQ Administrative Governments Offices. The JB Sentral Terminal is linked to the CIQ Complex serving dual functions as KTMB Johor Bahru Railway Station and Public Transport Station.