| Source: SEPS
a OPM conducts field investigations for all Department employees and contractors, except for political appointees, attorneys, and the specific categories of employees or contractors in the ATF, FBI, and USMS.
b The FBI conducts field investigations for all of the Department’s political appointees and attorneys, as well as for its own employees and contractors.
c The ATF conducts field investigations for all its employees and contractors except political appointees and attorneys.
d The USMS conducts background investigations of Court Security Officers and some contractors who are hired directly by USMS Districts.