| PWUD | People who use drugs |
| MAS | Mobile addiction services |
| CCiR | Community Care in Reach |
| BHCHP | Boston Health Care for the Homeless Program |
| AHOPE | Access, Harm Reduction, Overdose Prevention, and Education |
| MOUD | Medications for opioid use disorder |
| DPH | Department of Public Health |
| BSAS | Bureau of Substance Addiction Services |
| HIV | Human Immunodeficiency Virus |
| HVC | Hepatitis C |
| TA | Technical assistance |
| RE-AIM | Reach, Effectiveness, Adoption, Implementation, and Maintenance |
| OUD | Opioid Use Disorder |
| EIM-ESM | Enterprise Invoice/Service Management |