National Center for Charitable Statistics
The National Center for Charitable Statistics (NCCS) is a clearing house of data on the U.S. nonprofit sector. NCCS builds national, state, and regional databases and develops standards for reporting on the activities of all tax-exempt organizations.
NCCS was established in 1982 as a research division of Independent Sector but transferred to the Center on Nonprofits and Philanthropy (CNP) at the Urban Institute in July 1996.
NCCS, along with several other nonprofit organizations was instrumental in creating the National Taxonomy of Exempt Entities classification system or NTEE Codes. The NTEE coding system classifies organizations into more than 100 different categories based on the mission and program activities of an organization. The IRS currently uses this system to classify newly registered nonprofits.