| Abbreviation | Definition |
|---|---|
| SWW | SouthWest Washington |
| SWW | SouthWest Wisconsin |
| SYC | Southern York County |
| SYL | Sylvania, Ohio |
| SZB | Sacramento Zoning Board |
| SZB | Schenectady Zoning Board |
| SZC | Sacramento County Zoning Code |
| SZC | Santa Cruz County |
| SZO | Somerville Zoning Ordinance |
| T.A. | Travelling Allowance |
| TAAD | Texas Association of Appraisal Districts |
| TAAO | Texas Association of Assessing Officers |
| TAC | Technical Activities Committee |
| TACC | Transportation Administration of Cleveland County |
| TADS | Temporary Assistance to Displaced Seniors |
| TAG | Trumbull, Ashtabula, and Geauga counties, Ohio |
| TAHC | Texas Animal Health Commission |
| TAMA | Technology Advanced Metropolitan Area |
| TANK | Transit Authority of Northern Kentucky |
| TAO | Taxpayer Assistance Order |