| Abbreviation | Definition |
|---|---|
| SC | Short Cut |
| SC | Shuttle Class |
| SC | Soft Conditions |
| SC | Sport Coupe |
| SC | Sports Coupe |
| SC | Standard Class |
| SC | Steam Catamaran |
| SC&RA | Specialized Carriers & Rigging Association |
| SCA | Supplemental Coolant Additive |
| SCAA | Southern California Aviation Association |
| SCAC | Standard Carrier Alpha Code |
| SCARF | Supervised Classification Applied to Road Following |
| SCAT | Seneca County Agency Transportation |
| SCAT | Senior Citizens Affordable Taxi |
| SCAT | South County Area Transit |
| SCAT | Specialized Community Area Transit |
| SCAT | Specialized Community Area Transportation |
| SCAT | Strathcona County Accessible Transit |
| SCAT | Suffolk County Accessible Transit |
| SCAT | Suffolk County Accessible Transportation |