| Acronym | Meaning |
| NHIC | National Health Information Center |
| NINR | National Institute Of Nursing Research |
| SNL | Sandia National Laboratories |
| EDGAR | Electronic Data Gathering |
| FS | Forest Service |
| CEN | Bureau Of The Census |
| PUMS | Public Use Microdata Samples |
| FIPS | Federal Information Processing Standard |
| RD | Rural Development |
| NASA | National Aeronautics And Space Administration |