The CCF/ABCD Data Access Committee (DAC) has been established to objectively and systematically review data access requests pertaining to the CCF (and ABCD) Data Repositories. The CCF/ABCD DAC consists of six federal employees from NIH with expertise in science, policy, or bioinformatics resources. After a request is screened to ensure it satisfies the basic pre-requisites, it is reviewed by the DAC for approval.