| Acronym | Meaning |
| CRWQCB | California Regional Water Quality Control Board |
| RIP | RCRA Implementation Plan |
| SPI | Society For The Plastics Industry |
| APS | Autocorrelation Photon Spectroscopy |
| CIPW | Cross, Iddings, Pirrson, And Washington (for Geology Terminology) |
| POY | Partially Oriented Yarn (usually Synthetics |
| LAGST | Leaking Above Ground Storage Tank |
| WAN | Wide Area Network |
| PHANTOMM | Photo-activated Nonintrusive Tracking Of Molecular Motion |
| SRO | Short Range Order |