| Abbreviation | Definition |
|---|---|
| STIP | State Transportation Improvement Project |
| STIP | Statewide Transportation Improvement Program |
| STIPDA | State Territorial Injury Prevention Directors Association |
| STIPDA | State & Territorial Injury Prevention Directors Association |
| STL | St. Louis |
| STMB | State Tobacco Monopoly Bureau |
| STMP | State Travel Management Program |
| STP | Sewage Treatment Plant |
| STR | Section, Township, Range |
| STRAC | State and Tribal Royalty Audit Committee |
| STRAC | Statewide Traffic Records Advisory Committee |
| STRAP | Section, Township, Range, Area, and Parcel |
| STRN | Sales Tax Registration Number |
| STRU | State Tribal Relations Unit |
| STU | State Transmission Utility |
| STWA | South Texas Water Authority |
| SUCA | State Unemployment Compensation Act |
| SUI | State Unemployment Insurance |
| SUP | Special Use Permit |
| SURE | State Uniform Registry of Electors |