| Acronym | Meaning |
| FIS | Field Ion Spectroscopy |
| ERS | External Reflection Spectroscopy |
| PFI | Port Fuel Injection |
| NAICS | North American Industrial Classification System |
| LCPLS | Logcontrast Partial Least Squares |
| CBG | Corticosteroid Binding Globulin |
| IMC | Intermetallic Matrix Composite |
| RSKERL | Robert S. Kerr Environmental Research Laboratory |
| LIPS | Laser-induced Plasma Spectroscopy |
| RIA | Regulatory Impact Analysis |