"The results from a survey conducted of the administrators of the State criminal history record repositories in March--June 2009. Fifty-six jurisdictions were surveyed, including the 50 States, the District of Columbia, American Samoa, the Territory of Guam, the Commonwealth of Puerto Rico, the Northern Mariana Islands, and the U.S. Virgin Islands. Responses were received from 53 jurisdictions. It presents a snapshot as of December 31, 2008. Throughout this report, the 50 States will be referred to as 'States'; the District of Columbia, American Samoa, Guam, Puerto Rico, the Northern Mariana Islands, and the Virgin Islands will be referred to as 'territories,' consistent with prior surveys; 'Nation' refers collectively to both States and territories."
National Criminal Justice Reference Service: http://www.ncjrs.gov/