Specifications include, but are not limited to: obtain/capture/deliver digital orthoimage imagery in support of a statewide mapping initiative. The total area for this project includes the entire state of South Carolina, encompassing 31,113 square miles. The geographic extent for the project is 32,189 square miles and 35,896 tiles of 5,000’ x 5,000’ orthoimagery. ; Contractor shall map the entire state of South Carolina within the first year of the contract (unless granted an extension); Airborne GPS-IMU Integrated System – Camera position (latitude, longitude, and elevation) shall be recorded at the instant of exposure with airborne GPS. Airborne GPS data shall be differentially corrected and organized as individual data sets grouped by corresponding flight line. The IMU will allow the GPS unit to operate in the event GPS-signals are unavailable. Contractor shall produce a statistical report summarizing the results of the airborne GPS adjustment. Digital Terrain Model (DTM) – a rigorous data model which incorporates mass elevation points, spot elevations and breaklines at significant terrain breaks at a density level sufficient to support planimetric mapping and contour generation. In this case, planimetric mapping accuracy must be 4 feet RMSE or better (based on ASPRS Standard for Large Scale Mapping). The testing of the geospatial positional accuracy will conform to the NSDI Geospatial Positioning Accuracy Standards; 3.3.1 Requirements for the acquisition of the digital imagery include: The sky is free from clouds, cloud shadows, high overcast clouds causing low illumination, haze, fog, smoke, and dust. Ground conditions are free of snow, ice, and excessive soil moisture. Rivers and streams are within their normal banks. Floodplain, swamps and low-lying environments do not have excessive standing water. Other environmental factors causing non-manmade obstruction of the ground surface should be minimal. Less than 5% cloud cover per final uncompressed image tile AND less than 5% of the entire AOI. “5%” includes cloud shadows. The sun is > 30 degrees or more above the horizon. Collection of the aerial photography will be between January 20th and March 15th, generally between the times of 9:30 AM and 3:00 PM Eastern Standard Time.