
| Prefecture | Responsible Department | Address | Phone Number | |
| Hokkaido | Disputes Investigations, Construction Information Section, Construction Administration Bureau, Department of Construction | 060-8588 | Kita 3-jo Nishi 6, Naka-ku, Sapporo | 011-231-4111(ext. 29718) |
| Aomori | Construction Industry Group, Administration Section, Department of Prefectural Land Regulation | 030-8570 | 1-I-1 Nagashima, Aomori City | 017-722-1111(ext. 4235) |
| Iwate | Construction Technology Promotion Office, Construction Technology Promotion Section, Department of Prefectural Land Regulation | 020-8570 | 10-1 Uchimaru, Morioka City | 019-651-3111(ext. 5954) |
| Miyagi | Construction Guidance and Promotion Division, Project Administration Section, Department of Civil Engineering | 980-8570 | 3-8-1 Honmachi, Aoba-ku, Sendai | 022-211-2111(ext. 3116) |
| Akita | Planning and Construction Industry Division, Construction Administration Section, Department of Construction and Transport | 010-8570 | 4-1-1 Sanno, Akita City | 018-860-1111(ext. 2426) |
| Yamagata | Construction Planning Section, Department of Civil Engineering | 990-8570 | 2-8-1 Matsunami, Yamagata City | 023-630-2211(ext. 2572) |
| Fukushima | Construction Policies Group, Civil Engineering General Affairs Area, Department of Civil Engineering | 960-8670 | 2-16 Sugitsuma-cho, Fukushima City | 024-521-1111(ext. 3527) |
| Ibaraki | Construction Industry Office, Administration Section, Department of Civil Engineering | 310-8555 | 978-6 Takehara-cho, Mito | 029-301-1111(ext. 4334) |
| Tochigi | Construction Industry Office, Administration Section, Department of Civil Engineering | 320-8501 | 1-1-20 Hanawada, Utsunomiya | 028-623-2390 |
| Gunma | Construction Industry Group, Administration Section, Department of Civil Engineering | 371-8570 | 1-1-1 Otemachi, Maebashi | 027-223-1111(ext. 3520) |
| Saitama | Litigation Office, Prefectural Land Development General Affairs Section, Department of Prefectural Land Development | 330-9301 | 3-15-1 Takasuna, Urawa, Saitama City | 048-824-2111(ext. 5262) |
| Chiba | Construction and Real-Estate Industry Section, Department of Prefectural Land Development | 260-8667 | 1-1 Ichiba-machi, Chuo-ku, Chiba City | 043-223-3108 |
| Tokyo | Construction Works Disputes Regulation Office, Regulation Section, Department of Urban Building Construction, Bureau of Urban Development | 163-8001 | 2-8-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo | 03-5321-1111 (ext. 30761 to 3) |
| Kanagawa | Survey Guidance Division, Construction Industry Section, Department of Prefectural Land Development | 231-8588 | 1 Nihon-Odori, Naka-ku, Yokohama | 045-210-1111(ext. 6307) |
| Yamagata | Construction Industry Office, Civil Engineering General Affairs Section, Department of Civil Engineering | 400-8501 | 1-6-1 Marunouchi, Kofu | 055-223-1843 |
| Nagano | Construction Industry Unit, Land Use Support Team, Department of Civil Engineering | 380-8570 | 692-2 Aza-Habashita, Minami-Nagano, Oaza, Nagano City | 026-232-0111(ext. 3318) |
| Niigata | Construction Industry Office, Administration Section, Department of Civil Engineering | 950-8570 | 4-1 Shinkocho, Niigata City | 025-285-5511(ext. 3203) |
| Toyama | Construction Industry Division, Construction Technology Planning Section, Department of Civil Engineering | 930-8501 | 1-7 Shinsokawa, Toyama | 076-431-4111(ext. 4052) |
| Ishikawa | Department of Civil Engineering, Administration Section, Construction Industry Division | 920-8580 | 1-1 Kuratsuki, Kanazawa | 076-225-1111(ext. 5024) |
| Gifu | Construction Industry Office, Construction Policies Section, Department of Prefectural Land Development | 500-8570 | 2-1-1 Yabutaminami, Gifu City | 058-272-1111(ext. 3648) |
| Shizuoka | Guidance and Contracting Division, Construction Industry Office, Construction Policies General Office, Department of Civil Engineering | 420-8601 | 9-6 Otemachi, Shizuoka City | 054-221-3059 |
| Aichi | Construction Industry Group, Construction and Real-Estate Industry Section, Department of Construction | 460-8501 | 3-1-2 Sannomaru, Naka-ku, Nagoya City | 052-961-2111(ext. 2881) |
| Mie | Construction Industry Group, Construction Industry Office, Department of Prefectural Land Development | 514-8570 | 13 Komeicho, Tsu City | 059-224-2660 |
| Fukui | Construction Industry Group, Civil Engineering Administration Section, Department of Civil Engineering | 910-8580 | 3-17-1 Ote, Fukui City | 0776-20-0470 |
| Shiga | Construction Industry Office, Administration Section, Department of Civil Engineering and Transport | 520-8577 | 4-1-1 Kyomachi, Otsu City | 077-524-1121(ext. 4114) |
| Kyoto | Construction Industry Division, Guidance and Inspection Section, Department of Civil and Building Construction Engineering | 602-8570 | Nishi-iri Yabunouchi-cho, Shinmachi, Shimodachi Uritori, Jokyo-ku, Kyoto | 075-451-8111(ext. 5222) |
| Osaka | Construction Guidance Group, Building Construction Promotion Section, Department of Housing and Urban Planning | 540-8570 | 2 Otemae, Chuo-ku, Osaka | 06-6941-0351(ext. 3080) |
| Hyogo | Construction Industry Division, Contracting and Construction Industry Office, Prefectural Land Planning Bureau, Department of Prefectural Land Development | 650-8567 | 5-10-1 Shimoyamatedori, Chuo-ku, Kobe | 078-341-7711(ext. 4576) |
| Nara | Department of Civil Engineering, Administration Section, Construction Industry Division | 630-8501 | 30 Noborioji-cho, Nara City | 0742-22-1101(ext. 4117) |
| Wakayama | Construction Industry Division, Technological Inspection Section, Prefectural Land Development Policies Bureau, Department of Prefectural Land Development | 640-8585 | 1-1 Komatsubara-dori, Wakayama City | 073-432-4111(ext. 3070) |
| Tottori | Construction Industry Division, Administration Section, Department of Prefectural Land Development | 680-8570 | 1-220 Higashimachi, Tottori City | 0857-26-7111(ext. 7676) |
| Shimane | Construction Industry Policies Office, Civil Engineering General Affairs Section, Department of Civil Engineering | 690-8501 | 1 Tonomachi, Matsue | 0852-22-5111(ext. 5185) |
| Okayama | Construction Industry Division, Administration Section, Department of Civil Engineering | 700-8570 | 2-4-6 Uchisange, Okayama City | 086-224-2111(ext. 4860) |
| Hiroshima | Civil Engineering General Affairs Office, General Administration Bureau, Department of Civil Engineering | 730-8511 | 10-52 Motomachi, Naka-ku, Hiroshima City | 082-228-2111(ext. 3813) |
| Yamaguchi | Construction Industry Division, Administration Section, Department of Civil and Building Construction Engineering | 753-8501 | 1-1 Taki-machi, Yamaguchi | 083-922-3111(ext. 3629) |
| Tokushima | Construction Industry Guidance Office, Construction Administration Section, Department of Prefectural Land Development | 770-8570 | 1-1 Bandai-cho, Tukushima City | 088-621-2500(ext. 2623) |
| Kagawa | Contracting and Construction Industry Group, Civil Engineering Administration Section, Department of Civil Engineering | 760-8570 | 4-1-10 Bancho, Takamatsu | 087-831-1111(ext. 4125) |
| Ehime | Construction Industry Division, Civil Engineering Administration Section, Administration Bureau, Department of Civil Engineering | 790-8570 | 4-4-2 Ichiban-cho, Matsuyama | 089-941-2111(ext. 4280) |
| Kochi | Construction Industry Division, Construction Supervision Section, Department of Civil Engineering | 780-8570 | 1-2-20 Marunouchi, Kochi City | 088-823-1111(ext. 2815) |
| Fukuoka | Construction Industry Division, Building Construction Guidance Section, Department of Building Construction and City | 812-8577 | 7-7 Higashi-Koen, Hakata-ku, Fukuoka City | 092-651-1111(ext. 4677) |
| Saga | Construction and Technology Section, Central Department of Prefectural Land Planning | 840-8570 | 1-1-59 Jonai, Saga City | 0952-24-2111(ext. 2755 |
| Nagasaki | Construction Industry Guidance Division, Supervision Section, Department of Civil Engineering | 850-8570 | 2-13 Edo-cho, Nagasaki City | 095-824-1111(ext. 3014) |
| Kumamoto | Construction Industry Division, Supervision Section, Department of Civil Engineering | 862-8570 | 6-18-1 Suizenji, Kumamoto City | 096-383-1111(ext. 6019) |
| Oita | Construction Industry Guidance Division, Civil and Building Construction Engineering Planning Section, Department of Civil and Building Construction Engineering | 870-8501 | 3-1-1 Otemachi, Oita City | 097-536-1111(ext. 4515) |
| Miyazaki | Construction Industry Office, Administration Section, Department of Civil Engineering | 880-8501 | 2-10-1 Tachibanadori-Higashi, Miyazaki City | 0985-24-1111(ext. 2918) |
| Kagoshima | Construction Industry Division, Supervision and Land Section, Department of Civil Engineering | 890-8577 | 10-1 Kamo-ike Shinmachi, Kagoshima City | 099-286-2111(ext. 3496) |
| Okinawa | Construction Industry Guidance and Contracting Division, Civil Engineering Planning Section, Department of Civil and Building Construction Engineering | 900-8570 | 1-2-2 Izumisaki, Naha | 098-866-2384 |