Spatial Data     GIS/IT also provides a variety of planning-related data for the District, working closely with the Office of Planning’s Census State Data Center, the Office of the Chief Technology Officer’s GIS team and others.  OP maintains several key data sets including information on land use, neighborhoods and neighborhood clusters, historic preservation, and a variety of planning-related initiatives. State Data Center Online Tables Map Request Form* DC GIS Data Clearinghouse/Catalogue * This document is presented in Portable Document Format (PDF). A PDF reader is required for viewing. Download a PDF Reader or Learn More About PDFs.