Southwestern Motor Transport Inc
USDOT 136555MC-80252MC-825355USDOT activeAuthority active· DBA Smt Lines· San Antonio, TX
Southwestern Motor Transport Inc (USDOT 136555) runs 277 power units and 252 drivers based in San Antonio, TX, with active operating authority as a motor carrier of property and a broker under MC-80252 and MC-825355. The earliest grant on file is from August 1981, 45 years, 3 months ago. No liability insurance filing is on file.
Operating authority
| Docket | Authority | Status | Insurance required | On file |
|---|---|---|---|---|
| MC-80252 | Motor carrier of property | Active | $1,000,000 liability | $1,000,000 liability |
| MC-825355 | Broker | Active | bond | bond |
Earliest grant on file: Aug 7, 1981 (45 years, 3 months ago).
Insurance and bonds on file
| Type | Insurer | Coverage | Effective | Cancellation |
|---|---|---|---|---|
| Liability (BIPD) · form 82 | Protective Insurance Co. | — | Mar 23, 2000 | — |
| Cargo · form 83 | Protective Insurance Co. | — | Mar 23, 2000 | — |
| Broker surety bond (BMC-84) · form 84 | Protective Insurance Co. | — | Oct 1, 2013 | — |
Confirm coverage with the insurer before tendering a load.
Authority history
| Date | Docket | Action |
|---|---|---|
| Jun 4, 2013 | MC-825355 | Granted · broker |
| Jun 4, 2013 | MC-825355 | Granted · broker |
| May 29, 1987 | MC-80252 | Granted · motor carrier of property |
| Jun 23, 1983 | MC-80252 | Granted · motor carrier of property |
| Jun 23, 1983 | MC-80252 | Granted · motor carrier of property |
| May 3, 1982 | MC-80252 | Granted · motor carrier of property |
| Mar 25, 1982 | MC-80252 | Granted · motor carrier of property |
| Oct 13, 1981 | MC-80252 | Rejected · motor carrier of property |
| Aug 7, 1981 | MC-80252 | Granted · motor carrier of property |
Registration
| USDOT number | 136555 |
|---|---|
| USDOT status | Active |
| Dockets | MC-80252, MC-825355 |
| Legal name | Southwestern Motor Transport Inc |
| DBA name | Smt Lines |
| Operation | Interstate |
| Classification | Authorized for hire |
| Business type | Corporation |
| Location | San Antonio, Texas 78218 |
| USDOT added | Jun 1, 1974 |
| Last MCS-150 update | Oct 15, 2026 |
| Safety rating | Satisfactory · Nov 5, 2015 |
| Hazardous materials | Yes |
Fleet
| Power units | 277 |
|---|---|
| Trucks | 277 |
| Drivers | 252 · 225 with a CDL |
| Annual miles | 14,460,000 · 2025 |
Cargo carried
General freight, Building materials, Oilfield equipment, Chemicals, Beverages, Paper products, Construction
Check it yourself
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Data as of Nov 12, 2026. Sources
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