1. High Pressure Gas Safety Institute of Japan (Ministry of Economy, Trade and Industry)

・5422・5423

2. Fire Equipment and Safety Center of Japan

・602A・604A・616M・622H・5422・5423・5452・110Z・120Z

3. Nippon Kaiji Kyokai (NK)：Business establishment manufacturing certification

・612X・615X・606K・606F・5422・606V・602A

4. Lloyd’s Register (LR)：Business establishment manufacturing certification

・612X・615X・606K・606F・622H [・622H(Individual examination support)]

5. American Bureau of Shipping (ABS)：Business establishment certification

・K5615・606K・606F・606V

6. Det Norske Veritas (DNV)：Model registration

・5421・5422・5423・606F・606K・612X(Type A,B,C)・615X(Type A,B)・ExVHH・ExYLH・ExYLL・ExVLL

7. Ministry of Land, Infrastructure, Transport and Tourism (JG)

Individual examination support

8. Bureau Veritas (BV)

Individual examination support

9. China Classification Society (CCS)

Individual examination support

10. CR Classification Society (CR)

Individual examination support

11. Korean Register of Shipping (KR)

Individual examination support

12. Japan Water Works Association

Individual examination support