| Acronym | Meaning |
| FTA | Federal Transit Administration |
| MSA | Metropolitan Statistical Area |
| UNICEF | United Nations Children's Fund |
| FLRA | Federal Labor Relations Authority |
| MMWR | Morbidity And Mortality Weekly Report |
| NHPRC | National Historical Publications And Records Commission |
| MESH | Medical Subject Headings |
| ADD | Administration On Developmental Disabilities |
| LLNL | Lawrence Livermore National Laboratory |
| WES | Waterways Experiment Station |