| Abbreviation | Definition |
|---|---|
| REG | Regular Electronic Giving |
| REJ | Rapid Ecomonic Justification |
| REMS | Risk Evaluation and Mitigation Strategies |
| REPA | Regulation Energy Payment Adjustment |
| REPS | Restored Entitlement Program for Survivors |
| RER | Remediation Effectiveness Report |
| RES | Renewable Energy Source |
| res | resided |
| RESPECT | Respect, Equality, Socialism, Peace, Environment, Community, Trade |
| REST | Renewable Energy And Sustainable Tourism |
| RET | Renewable Energy Technology |
| REV | Revenue |
| REV | Revised |
| REW | Real Estate Withholding |
| RFA | Reason For Assessment |
| RFA | Request For Advice |
| RFAF | Request for Additional Fires |
| RFC | Reconstruction Finance Corporation |
| RFC | Request For Consideration |
| RFC | Requests For Comment |