| Acronym | Meaning |
| IMPATT | Impact Avalanche Transit-time |
| ASM | Autosampler Module |
| POX | Particulate Organic Halogen(s) |
| OGC | Office Of General Counsel |
| EDN | Eosinophil-derived Neurotoxin |
| ALK | Anaplastic Lymphoma Kinase |
| GX | Generalized Exchange |
| ISEC | Inverse Size-exclusion Chromatography |
| OAQPSTTN | Office Of Air Quality Planning And Standards Technology Transfer Network |
| CEARP | Comprehensive Environmental Assessment And Response Program |