A public corporation distributing charts/publications/marine data; R&D activities.
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The Qualifying Examinations for Hydrographic Survey Techniques 1st and 2nd Grades of the Coastal Survey Class and Harbor Survey Class, respectively, conducted since 1977 under the approval of the Commandant of Japan Coast Guard, were succeeded to JHA in 2001 as its qualifying examinations and are conducted every year.
Besides, JHA regularly conducts such training courses as "Training on Hydrographic Survey Technique" and "Training on Coastal Oceanographic Observation (Physical Oceanography Course and Water Analysis and Environment Course)".