| Acronym | Meaning |
| ECCS | Electro-coated Chromium Steel |
| LAWG | Laboratory Accreditation Working Group |
| APA | Administrative Procedure Act |
| SCAP | Superfund Compliance Accomplishments Plan |
| FP-SCF-INDO | Finite Perturbation-SCF-INDO |
| UMIX | User-Manufacturer Information EXchange |
| CFM | Cubic Feet Per Minute |
| SCAF | Self-consistent Anisotropic Field |
| PWPP | Plane-wave Pseudopotential |
| SCP-IOS | Semiclassical Perturbation-infinite Order Sudden |