| BI | Background Investigation |
| CY | Calendar year (January 1 to December 31) |
| CDUSM | Chief Deputy Marshal |
| CFS | Code of Federal Regulations |
| CSO | Contract court security officers |
| DHS | Department of Homeland Security |
| DUSM | Deputy marshal |
| EOD | Enter on duty date |
| FBI | Federal Bureau of Investigation |
| FY | Fiscal year (October 1 to September 30) |
| HRD | Human Resources Division |
| IDMS | Investigations Data Management System |
| JSD | Judicial Security Division |
| NCIC | National Crime Information Center |
| NSI | National Security Information |
| OIG | Office of the Inspector General |
| OPM | Office of Personnel Management |
| RI | Reinvestigation |
| SCI | Sensitive Compartmented Information |
| SEPS | Security and Emergency Planning Staff |
| USC | United States Code |
| USMS | United States Marshals Service |