| Acronym | Meaning |
| UPU | Universal Postal Union |
| LSC | Legal Services Corporation |
| SJI | State Justice Institute |
| AHRQ | Agency For Healthcare Research And Quality |
| ATSDR | Agency For Toxic Substances And Disease Registry |
| IBB | International Broadcasting Bureau |
| NRPC | National Railroad Passenger Corporation (AMTRAK) |
| SDWIS | Safe Drinking Water Information System |
| AMES | Ames Laboratory |
| NCIPC | National Center For Injury Prevention And Control |