Please enable JavaScript to use the website of the Tokyo Metropolitan Government.

Main content starts here.


Please direct any inquiries regarding the content of the Tech Book to the relevant bureau (noted in the upper right corner of each page). If you are not sure where to direct your inquiry, please contact the Bureau of Urban Development or Bureau of Construction.

Bureau of Construction
Bureau of Urban Development
Bureau of Port and Harbor
Bureau of Waterworks
Bureau of Sewerage
Bureau of Transportation
Bureau of Social Welfare and Public Health
Tokyo Fire Department
Bureau of Finance
Bureau of Environment
Bureau of Industrial and Labor
Office of Youth Affirs and Public Safety
Bureau of Urban Development or
Bureau of Construction