The Southern Integrated Gateway (Malay: Gerbang Selatan Bersepadu) refers to a complex at Bukit Chagar, Johor Bahru, Johor, Malaysia incorporating the city's main railway station, JB Sentral, and a customs, immigration, and quarantine complex (CIQ), the Sultan Iskandar Building (Malay: Bangunan Sultan Iskandar), named after Almarhum Sultan Iskandar ibni Almarhum Sultan Ismail of Johor. The CIQ complex was opened to vehicular traffic on 16 December 2008. As of October 2010, the JB Sentral railway station entered operation and service to the old Johor Bahru railway station ceased.