| Abbreviation | Definition |
|---|---|
| REJIS | Regional Justice Information Service |
| REJN | Re-Join |
| RELANS | Real Estate Lawyers Association of Nova Scotia |
| RELM | Redwood Empire Law Mediation |
| REO | Riot Engine Object |
| REPI | Readiness and Environmental Protection Integration |
| RESPA | Real Estate Settlement Procedures Act of 1974 |
| RESTORE | Resources and Ecosystems Sustainability, Tourist Opportunities, and Revived Economies of the Gulf Coast States Act of 2012 |
| REV | Revenge |
| REV | Reversed |
| REV'D | Reversed |
| REVPROC | Revenue Procedure |
| REVRUL | Revenue Ruling |
| REVRUL | Revised Ruling |
| REVS | Register Of Encumbered Vehicles Scheme |
| RExO | Reintegration of Ex-Offenders |
| RF | Rat Fink |
| RF | Royalty Free |
| RFA | Regulatory Flexibility Act |
| RFA | Robbery, Fraud, and Arson |