| Acronym | Meaning |
| ASTHO | Association Of State And Territorial Health Officers |
| TFB | Thin Film Balance |
| PWSA | Ports And Waterways Safety Act |
| CPAC | Center For Process Analytical Chemistry |
| HCS | Hazard Communication Standard |
| MRF | Magnetorheological Fluid |
| SAI | Spline-fitted Ab Initio (potential Energy Surface) |
| ERL-C | Environmental Research Laboratory Corvallis |
| CIH | Certified Industrial Hygienist |
| GCOS | Global Climate Observing System (WMO |