gg5
一級[二級]建築士 a 「first-class [second-class] registered architect.
https://ja.wikipedia.org/wiki/建築士#一級建築士
一級建築士	351766
二級建築士	51105
木造建築士	13311

https://www8.cao.go.jp/kisei-kaikaku/oto/otodb/english/mondai/subject/199800501.html
"Persons with foreign architect licenses who wish to be licensed in Japan may, in the case of first class Kenchikushi (architects 
and building engineers), be certified by the Minister of Construction, and in the case of second class Kenchikushi or of Mokuzo-
Kenchikushi (architects and building engineers for wood constructions), by the prefectural governor, as having equivalent or 
superior qualifications and obtain a license without passing the Kenchikushi's licensing examination (Kenchikushi's Law, Article 
4, Clause 3)."