AOC – State Repository - Includes statewide criminal records that include serious misdemeanors, felony.  Some states are limited to convictions only.  Tennessee, North Carolina & Virginia include traffic convictions.       
DOC – Department of Corrections – Felony convictions where an individual is sentenced to serve time in a state penal system.  All states report except Delaware, Massachusetts, S. Dakota and Wyoming.
SOR – Sex Offender Registry – All states except Nevada report and are included in the National Comprehensive Criminal Search.
PRIORS – Database of criminal records that has been previously retrieved by another search request.