| Acronym | Meaning |
| NAPAP | National Acid Precipitation Assessment Program |
| SARS | Severe Acute Respiratory Syndrome |
| CTIOSA | Charge-transfer Infinite Order Sudden Approxn. |
| SPHF | Spin-polarized Hartree-Fock |
| NEO | Near-Earth Objects |
| INPI | The French National Institute Of Industrial Property |
| CAP | Compliance Audit Program |
| APTI | Air Pollution Training Institute |
| OPANA | Operational Version Of The Atm. Mesoscale Numerical Pollution Model |
| APMP | Acid Precipitation Mitigation Program |