| Acronym | Meaning |
| NCCLS | National Committee For Clinical Laboratory Standards |
| OSPARCOM | Oslo And Paris Commission [Environmental Regulations For The European Community] |
| ISTEA | Intermodal Surface Transportation Efficiency Act |
| NTS | Nevada Test Site |
| POL-CI | Polarization Configuration Interaction |
| ACCDPPA | Approx. Coupled Cluster With Double Excitations Polarization Propagator Approxn. |
| POES | Polar Orbiting Environmental Satellites |
| SOCI | Society Of Chemical Industry |
| AIS | Acoustic Imaging System |
| ITRI | Inhalation Toxicology Research Institute |