| Acronym | Meaning |
| PHS | Public Health Service |
| CHAMPP | Computer Hardware |
| AOQL | Average Outgoing Quality Limit |
| EMAP | Environmental Monitoring And Assessment Program (US EPA) |
| HRAC | Herbicide Resistance Action Committee |
| SBAR | Sequencing Batch Anaerobic Reactor(s) |
| THESEO | Third European Stratospheric Experiment On Ozone |
| LOMO | Lowest Occupied Molecular Orbital |
| OARM | Office Of Administration And Resources Management (USEPA) |
| MRNA | Messenger Ribonucleic Acid |