This manual provides technical specifications and procedural guidance for surveying and mapping with the Global Positioning System (GPS) and other Global Navigation Satellite Systems (GNSS). It is intended for use by planning, engineering, operations, real estate, and construction personnel performing georeferenced feature mapping or geodetic control surveys for all US Army Corps of Engineers (USACE) projects to include civil works and military construction. Procedural and quality control standards are defined to establish Corpswide uniformity in the use of GPS by hired-labor personnel, construction contractors, and Architect-Engineer (A-E) contractors.