public institution; public organization; official body
Refers to government agencies, public offices, or officially recognized bodies that serve public functions.
この証明書は公的機関が発行したものです。
This certificate was issued by a public institution.
公的機関に相談することをお勧めします。
I recommend consulting an official body.
Compound of 公的 (public, official) and 機関 (organization, institution).