| Acronym | Meaning |
| CRWQCB | California Regional Water Quality Control Board |
| INDC | International Nuclear Data Committee |
| BART | Best Available Retrofit Technology |
| BLC | BACT/LAER Clearinghouse |
| PAA | Photon Activation Analysis |
| MRP | Medical Removal Protection |
| PCSFC | Packed Column Supercritical Fluid Chromatography |
| CLCR | Creatinine Clearance |
| MLVSS | Mixed Liquor Volatile Suspended Solids |
| FCV | Feline Calicivirus |