| Acronym | Meaning |
| PIMA | Polyisocyanurate Insulation Manufacturers Association |
| HMA | Hot Mix Asphalt |
| RGS | Regulator Of G-protein Signaling |
| HPMS | Highway Performance Monitoring System |
| IAP | Immunosuppressive Acidic Protein |
| ESD | Element-Specific Detector |
| CFHT | Canada-France-Hawaii Telescope |
| CRM | Certified Reference Material |
| FGR | Flue Gas Recirculation |
| RNG | Renormalized Group Theory |