| Acronym | Meaning |
| CEMS | Continuous Emissions Monitoring System |
| DTDA | Differential Thermal Desorption Analysis |
| TIME | Transferred Ionized Molten Energy Process (for Metal Arc Welding) |
| UERPIC | Underground Excavation And Rock Properties Information Center |
| CNDO/OPTIC | CI Method For Elec. Transition Moments Of The Optical Transition Of Large Mols. Based On CNDO/S Parametrization |
| ABS | Atomic Beam Scattering |
| RIC | Resource Conservation And Recovery Act Docket Information Center |
| CIP | Configuration Interaction With Partner Orbitals |
| OSPARCOM | Oslo And Paris Commission [Environmental Regulations For The European Community] |
| FGH | Fourier-grid Hamiltonian |