| Acronym | Meaning |
| NIPC | National Infrastructure Protection Center |
| EIA | Energy Information Administration |
| PBGC | Pension Benefit Guaranty Corporation |
| USCCR | United States Commission On Civil Rights |
| AMTRAK | National Railroad Passenger Corporation |
| MIGA | Multilateral Investment Guarantee Agency |
| NR | National Register Of Historic Places |
| NCHS | National Center For Health Statistics |
| FPDC | Federal Procurement Data Center |
| IHS | Indian Health Service |