 The new five-story section (30 South) went operational in 1998 and houses two flight control rooms, designated "White", and "Blue".The White FCR was used in tandem with FCR 2 for seven shuttle missions, STS-70 through STS-76, and handled all following shuttle flights through the end of the program.When not in use for the shuttle program, the White FCR was reconfigured as a backup for the ISS FCR from time to time as needed (such as during periods of construction or upgrades in the ISS FCR).