| Acronym | Meaning |
| WWTP | Wastewater Treatment Plant Or Process |
| MRL | Maximum Residue Limit |
| UIC | Underground Injection Control |
| PWRI | Public Works Research Institute (Japan) |
| SFCCCC | Space-fixed Complex-coordinate Coupled-channel Method |
| NADC | National Animal Disease Center |
| CBRA | Coastal Barriers Resource Act |
| NACCHO | National Association Of County And City Health Officials |
| ERPG | Emergency Response Planning Guidelines |
| SNRNP | Small Nuclear Ribonucleoprotein |