| Acronym | Meaning |
| FXR | Farnesoid X Receptor |
| CIRAC | Canadian Institute For Research In Atmospheric Chemistry |
| CA | Corrective Action |
| PSTL | Photostimulated Thermoluminescence |
| USP | United States Pharmacopeia |
| COED | Computer Optimized Experimental Design |
| PIRU | Public Information Reference Unit |
| WECC | Western European Calibration Cooperation |
| HPMS | Highway Performance Monitoring System |
| AFRP | Advanced Fuel Recycle Program |