| Acronym | Meaning |
| PBDD | Polybrominated Dibenzodioxin(s) |
| MIAR | Mass Isotopomer Abundance Ratio |
| MTEL | Maximum Tolerable Exposure Levels |
| XLPE | Crosslinked Polyethylene |
| TAC | Toxic Air Contaminant |
| CSI | Chemical Substances Inventory |
| KHP | Potassium Hydrogen Phthalate |
| NSPS | New Source Performance Standards |
| GMP | Guanosine 5'-monophosphate |
| TBC | Toxicity Based Consent |