This manual establishes criteria and presents policy and guidance for performing hydrographic surveying in support of planning, engineering and design, construction, operation, maintenance, and regulation of civil works navigation and flood control projects. It establishes standard procedures, minimum accuracy requirements, instrumentation and equipment requirements, and quality control criteria for hydrographic surveys. The manual functions as a guide in planning and performing hydrographic surveys with US Army Corps (USACE) hired-labor forces. It also works as a primary specification reference for contracted construction measurement, payment, and acceptance functions, whether performed by USACE or contractor survey forces.