| Acronym | Meaning |
| APELL | Awareness And Preparedness For Emergencies At Local Level |
| FACOSH | Federal Advisory Council For Occupational Safety And Health |
| CAL | Computer Aided Learning |
| IBS | Incomplete Basis Set |
| MSHA | Mine Safety And Health Administration (US) |
| BMV | Berthier-Millie-Veillard Method (semiempirical MO-SCF) |
| ABS | Alkylbenzene Sulfonates (anionic Surfactants) |
| ASEMP | Active Sites Environmental Monitoring Program |
| RIR | Reference-intensity Ratio |
| CAB | Combination Of Atomic Boxes (mo Method) |