| Acronym | Definition |
|---|
| SEIS➣Supplemental Environmental Impact Statement |
| SEIS➣Shared Environmental Information System (European collaboration) |
| SEIS➣Special Education Information System |
| SEIS➣Socio-Economic Impact Study |
| SEIS➣State Environmental Impact Statement |
| SEIS➣Special Education Itinerant Services (preschool education) |
| SEIS➣Science and Engineering Information Service |