| Acronym | Meaning |
| ACO | Administrative Consent Order |
| HPD | Hourly Precipitation Data |
| IS | Institute Sponsors |
| MLO | Mauna Loa Observatory |
| AI | Action Item |
| APEN | Air Pollution Emissions Notice |
| BIBEX | Biomass Burning Experiment |
| ACCENT | Atmospheric Chemistry Of Combustion Emissions Near The Tropopause |
| GRD | Geophysics Research Directorate |
| CARB | California Air Resources Board |