| Acronym | Meaning |
| CAEAL | Canadian Association For Environmental Analytical Laboratories |
| ARIPO | African Regional Intellectual Property Organization |
| CHEMTREC | Chemical Transportation Emergency Center |
| MOX | Mixed Oxide |
| EPHMRA | European Pharmaceutical Market Research Association |
| ODPAS | Optically Detected Photoacoustic Spectroscopy |
| SORP | Southern Oxidants Research Program |
| CBO | Crude Born-Oppenheimer (wave Functions) |
| ES&H | Environmental Safety And Health |
| THTR | Thorium High Temperature Reactor |