| Acronym | Meaning |
| SIDS | Screening Information Data Set |
| HDR | Hot Dry Rock (geothermal Reservoir) |
| DWTT | Drop-weight Tear Test |
| DTP | Developmental Therapeutics Program |
| REX | Reactive Extrusion |
| BASTE | Bay Area Sewage Toxics Emissions |
| BTIS | Beam Tube Isolation System |
| OPM | Open Path Monitors (air Pollution Sensors) |
| CALCOFI | California Cooperative Oceanic Fisheries Investigations |
| NSR | New Source Review |