| Acronym | Meaning |
| RFA | RCRA Facility Assessment |
| BOS | Basic Oxygen Steelmaking |
| DIERS | Design Institute For Emergency Relief Systems (AIChE) |
| UDF | Unrestricted Dirac-Fock |
| ESAD | Electron-stimulated Associative Desorption |
| EMT | Effective-medium Theory (of Bonding In Metallic Systems) |
| MOPITT | Measurements Of Pollution In The Troposphere |
| ASMO | Antisymmetrical Molecular Orbital |
| MICROSS | Micro-computer Based River Oil Spill Simulation |
| ILZRO | International Lead Zinc Research Organization |