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FAQFrequently Asked Questions

Q&A (related to seminars)

Q&A (related to license application)

I have applied for a Johkasou Operator diploma, but how long will it take for it to be issued?
I lost my Johkasou Operator diploma and would like to apply for a replacement.
I would like to apply to rewrite my Johkasou Operator license (change of surname, transfer of family register, etc.).

Q&A (related to national exams)

Do I need to take a class before taking the national exam?
Mikihiro Mukai (Public Interest Incorporated Foundation Kodokan)​
Japan Education Center of Environmental Sanitation
130-0024
2-23-3 Kikukawa, Sumida-ku, Tokyo
TEL: 03-3635-4880 (Switchboard),


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