Cut and Cover Tunnels have normally been constructed for railroads in urban regions. The open cut method is generally used to construct cut and cover tunnels between stations and also for underground stations and shafts. In recent years, in order to effectively use under-ground spaces, substructures tend to be built at deeper and deeper positions. On the other hand, new structure materials and developed, and technologies to utilize diaphragm walls for the main tunnel structure are under development. Structures, which were designed by the allowable stress degree method in the past, are now designed by the limit stale design method. Under the circumstances, the work to standardize the design of cut and cover tunnels started in 1995. This report introduces an abstract of the cut and cover tunnel design standard that was finalized at the end of 1999.