| Abbreviation | Definition |
|---|---|
| SPFD | Saint Paul Fire Department |
| SRFD | Santa Rosa Fire Department |
| SRFD | Strathmore Rural Fire Department |
| SSFD | Sand Springs Fire Department |
| SSFD | Silver Spring Fire Department Silver Spring Fire Department |
| SSFD | South Schenectady Fire Department |
| STFB | Short Term Fire Behavior |
| STFD | Saginaw Township Fire Department |
| STFD | Springfield Township Fire Department |
| STSS | Superior Tanker Shuttle Service |
| SVFD | Sharpsville Volunteer Fire Department |
| SVFD | Swissvale Volunteer Fire Department |
| TAFD | Tontitown Area Fire Department |
| TFD | Tacoma Fire Department |
| TFD | Tallahassee Fire Department |
| TFD | Tokyo Fire Department |
| TFD | Tomahawk Fire Department |
| TFD | Toontown Fire Department |
| TFD | Topeka Fire Department |
| TFD | Torrance Fire Department |