The Geographical Survey Institute (GSI) - A national surveying and mapping organization of the MLIT that conducts basic survey and mapping and instructs related organizations to clarify the conditions of land in Japan.
Japanese Maritime Safety Agency (JMSA) - Maintains public order, performs oil pollution response, search and rescue, hydrographic surveys, oceanographic observations and navigational charts, publications, and related information.
Public Works Research Institute (PWRI) - Carries out research and development, technical support, and dissemination of research results in the field of civil engineering technology.
- Official ministry page with its organization, objectives, policies, and bureau activities. Adobe Acrobat Reader required.
