| ATF | Bureau of Alcohol, Tobacco, Firearms and Explosives |
| AUSA | Assistant United States Attorney |
| CGAB | Crime Gun Analysis Branch |
| DEA | Drug Enforcement Administration |
| EOUSA | Executive Office for United States Attorneys |
| FBI | Federal Bureau of Investigation |
| FY | fiscal year |
| ICE | Immigration and Customs Enforcement |
| JMD | Justice Management Division |
| LAPD | Los Angeles Police Department |
| MOU | Memorandum of Understanding |
| MPD | Miami Police Department |
| NTC | National Tracing Center |
| NIBIN | National Integrated Ballistics Information Network |
| OIG | Office of the Inspector General |
| ODAG | Office of the Deputy Attorney General |
| PPD | Philadelphia Police Department |
| PSN | Project Safe Neighborhoods |
| SAC | Special Agent in Charge |
| TPD | Tampa Police Department |
| UCR | Uniform Crime Reports |
| USAO | United States Attorney’s Office |
| USMS | United States Marshals Service |
| VCIT | Violent Crime Impact Team |