| Abbreviation | Definition |
|---|---|
| SPE | Special Police Establishment |
| SPECTAR | SPECial TARget Informant Development Program |
| SR | Secret Recording |
| SS | Search Slip |
| SSA | Secret Service Agent |
| SSGM | Special Safe Guard Measures |
| SSN | Selective Service Number |
| SSS | Special Service Staff |
| SSTFs | Safe Streets Task Forces |
| STAG | STudent AGitation |
| STATS | Statistics |
| SU | Salt Lake City Field Office |
| SUB | Subject |
| SUBJ | Subject |
| SUPV | Supervisor |
| SV | Savannah Field Office |
| TAC | Threat Assessment Center |
| TAD | Temporary Assigned Duty |
| TAMS | Total Availability Monitoring Solution |
| TECH | Technical |