| Acronym | Meaning |
| CFR | Code Of Federal Regulations |
| NPOESS | National Polar-orbiting Operational Environmental Satellite System |
| GIPSA | Grain Inspection |
| NHGRI | National Human Genome Research Institute |
| NICHD | National Institute Of Child Health And Human Development |
| WES | Waterways Experiment Station |
| ORD | Office Of Rare Diseases |
| FLRA | Federal Labor Relations Authority |
| DSS | Defense Security Service |
| DAU | Defense Acquisition University |