| Acronym | Meaning |
| PIFM | Practical Improved Flux Method |
| AWU | Associated Western Universities |
| NREL | National Renewable Energy Laboratory |
| HST | Hubble Space Telescope |
| NGM | Nested Grid Model |
| MWP | MicroWave Profiler |
| BSAC | Biotechnology Science Advisory Committee |
| BOD | Beneficial Occupancy Date |
| WGS84 | World Geodetic Survey 1984 |
| FR | Federal Register |