General rules for energy evaluation method by available energy (FOREIGN STANDARD)
standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1991

General rules of recommended lighting levels (Amendment 1) (Foreign Standard)
Amendment by Japanese Industrial Standard / Japanese Standards Association, 01/01/2011

Lighting of tunnels for motorrized traffic (FOREIGN STANDARD)
standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1990