| Abbreviation | Meaning/Use in Peer Support |
| CE | Continuing Education |
| CEU | Continuing Education Unit (used interchangeably with CE in many states) |
| CPS | Certified Peer Support (general MH peer credential; name varies by state) |
| CPSS | Certified Peer Support Specialist (alternate naming in some states) |
| CPRS | Certified Peer Recovery Specialist (often SUD-focused) |
| PRS | Peer Recovery Supporter/Specialist (generic) |
| PRSS | Peer Recovery Support Specialist |
| SUD | Substance Use Disorder |
| AOD | Alcohol & Other Drugs (older term used by some boards) |
| IC&RC | International Certification & Reciprocity Consortium (cross‑state reciprocity for many SUD/peer credentials) |
| NAADAC | Association for Addiction Professionals (exam and CE approvals widely recognized) |
| DOH | Department of Health (state) |
| DMH | Department of Mental Health (state) |
| DMHAS/MHAS | Dept. of Mental Health & Addiction Services (state variants) |
| DBHDD/DBHDID | Dept. of Behavioral Health & Developmental Disabilities/Intellectual Disabilities (state variants) |
| DAODAS | SC Dept. of Alcohol and Other Drug Abuse Services |
