1. 7 Aug 2026 Directive
| Authority | Oita Prefecture |
|---|---|
| Law / type | Construction Business Act / Directive |
| Summary | English translation pending. Review the original Japanese text and source URL before relying on the details. |
| Source | https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=2187 |