Hydrographic Survey Conducted By Non-national Agencies
Governmental entities below national level conduct or contract for hydrographic surveys for waters within their jurisdiction with both internal and contract assets. Such surveys are commonly conducted by or under the standards approved by or the supervision of national organizations, particularly when the use is for the purposes of chart making/distribution or dredging of state controlled waters.
In the United States there is coordination with the National Hydrography Dataset in survey collection and publication. State environmental organizations publish hydrographic data relating to their mission.
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