| Acronym | Meaning |
| NESCAUM | North East States Coalition For Air Use Management |
| CES | Committee On Earth Science (Office Science & Technology Policy) |
| ORPP | Optimized Relativistic Pseudopotential |
| PHBTD | (number)projected-hartree-bogolyubov Tamm-dancoff(quantum Method) |
| ILAP | Inter-Laboratory Analysis Program |
| FOCS | Fiber Optic Chemical Sensor |
| EMIT | Enzyme-multiplied Immunoassay Technique |
| IEM | Independent Electron Model (for Ionization In Ion-atom Collisions) |
| PYS | Partial Yield Spectroscopy |
| CHARMM | Chemistry At HARvard Macromolecular Mechanics |