| Acronym | Meaning |
| ICCVAM | US Interagency Coordination Committee On The Validation Of Alternative Methods |
| RQDO | Relativistic Quantum Defect Orbital (method In Calcns. Of Oscillator Strengths) |
| FBA | First Born Approximation |
| CWM | Center For Waste Management |
| CARS | Corrective Action Reporting System (now Known As RCRIS) |
| HMSA | Hybrid Mean Spherical Approximation |
| PIM | Powder Injection Molding |
| RATL | Risk Analysis Testing Laboratory |
| MIDI | Split Valence Plus Polarization Function (basis Set) |
| FEF | Forced Expiratory Flow (lung Function) |