Address:

Basement 10
Hughes Aircraft Electrical Engineering Building (EEB)
3740 McClintock Avenue
(University Park Campus)
Los Angeles, CA 90089-2560

Smartphone users could download the app (iOS) “YouWalk for USC” to direct the way on campus:
https://itunes.apple.com/us/app/youwalk-for-usc/id668400477?mt=8

Route:

110 (Harbor) Freeway North:
Exit at Exposition Blvd and 37th Street. Follow the signs to Exposition Blvd., circling left under the freeway. The USC campus will be ahead on your right. Go west on Exposition to USC Watt Way (Gate 1).
110 (Harbor) Freeway South:
Exit at Exposition Blvd. Turn right at the light onto Exposition Blvd. The USC campus will be ahead on your right. Go west on Exposition to USC Watt Way (Gate 1).
10 (Santa Monica) Freeway East:
Exit at Vermont Avenue. Turn right (south) at the light and follow Vermont to 36th Place (Gate 6).
10 (Santa Monica) Freeway West:
Exit at Vermont Avenue. Turn left (south) at the light and follow Vermont to 36th Place (Gate 6).
MCL1

If you walk to USC, you could also walk to EE building from Gate 5:
MCL2