| Acronym | Meaning |
| TACB | Texas Air Control Board |
| NDBEPR | Nitrification-denitrification Biological Excess Phosphorus Removal |
| HSGFET | Hybrid Suspended Gate Field Effect Transistor |
| HFI | Hyperfine Interaction |
| THGF | Trigonometric Hermite Gaussian Function |
| CCID | Confidential Chemicals Identification System |
| CLC | Coordinated List Of Chemicals |
| SOA | Semiconductor Optical Amplifier |
| SCM | Scanning Capacitance Microscopy |
| AVS | Acid Volatile Sulfide |