Mandated by the Brady Bill, the National Instant Criminal Background Check System (NICS) is used by the FBI to screen potential firearms buyers. Citizens who are currently ineligible to own a firearm under current laws may have the opportunity to have their firearms rights restored. Eligibility largely depends on state laws. In addition to searching the NCIC databases, NICS maintains its own index to search for additional disqualifiers from gun ownership. Private companies are not allowed access to this system for background checks.
