Working Group Manager - K. Fukuda (AAA)
General Civil Engineering Layout - N. Shikama (AAA)
Accelerator Main Tunnel - K. Ryoke (AAA)
Sub-Tunnel and Access - H. Sasao (AAA)
Detector Hall - T. Akojima (AAA)
Underground Water Handling - K. Akiyoshi (AAA)
Cooling Water and Utilities - T. Kokubo (AAA)