English translation: Decision Notice for Commencing a Hearing Procedure
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GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
Japanese term or phrase:
Decision Notice for Commencing a Hearing Procedure
Order for the initiation/commencement of a hearing
Explanation: I am not familiar with JFTC procedure, but I would agree with you that there is not a standard English term that I am aware of.
The JFTC reference attached is not the most wonderful piece of translation ever done, but see s 11 for their stab at it in one particular context, which goes for "initiation", although I would prefer "commencement".