| Acronym | Meaning |
| PAM | Performance Assessment Methodology |
| CERL | Construction Engineering Research Laboratory (US Army) |
| FF-MBPT | Finite-field Many-body Perturbation Theory |
| HSEES | Hazardous Substances Emergency Events Surveillance |
| TREF | Temperature Rising Elution Fractionation |
| EBL | Electron-beam Lithography |
| UF | Uncertainty Factor (in Oral RfD) |
| PFNA | Pulsed Fast-neutron Analysis |
| LIFS | Laser Induced Fluorescence Spectroscopy |
| MES | Methyl Ester Sulfonates (surfactants) |