There are four levels of background checks that involve checking information on a person on different levels. Level 1 background check involves an employment history check and a name-based check. Level 2 background check involves national and state fingerprint-based checks. And lastly, Level 3 includes information on education, criminal history, previous employment history, reference checks, etc. Lastly, the level 4 check is similar to level 3 but offers an additional federal criminal court search, social media searches, drug and health screening, county civil records searches, etc.