List of building work technology/technology examination certifications
| Certifications | Explanation | Certification number | Acquisition date |
|---|---|---|---|
| Architecture execution technology and technology examination certification | A "Construction execution technology and technology examination certificate" has been obtained from the Building Center of Japan. | BCJ Examination certificate No.85 |
October 2, 2005 Renewed July 10, 2015 Minor change April 19, 2019 |
| Construction technology examination certification | "Construction technology examination certification" has been obtained from the Civil Engineering Research Center. | Examination certificate No.0122 |
March 18, 2002 Renewed March 18, 2017 Content change May 13, 2019 |
| Law concerning promotion of housing quality assurance, etc. | Under the provisions of the "Quality Assurance Law," we have obtained certification by the Minster of Land Infrastructure and Transport for special evaluation methods for degradation measure classes (structures, etc.) to be displayed in accordance with the Japan housing performance labeling standards. | Certification No.618 | June 7, 2005 |
| Architecture standards law | Certification by the Minister of Land Infrastructure and Transport has been obtained as a product conforming to the provisions of Item 2 of Article 37 of the Building Standards Act. |
Toyo Works MSTL-0064 Sakai Works MSTL-0065 |
December 21, 2001 |
| Nippon Expressway Company Limited New technology and new building methods | The product is registered in a database of new technologies and new construction methods of expressways managed by NEXCO, Nippon Expressway Company Ltd. | 200100085 | April 20, 2001 |
| New technology for Tokyo expressways | The "high-durability hot-dip steel sheet ZAM™ is mentioned on the Metropolitan Expressway CO., Ltd. and in "Systems using new technology" (internal company database). | ー | November 20, 2007 |
