Southwestern Motor Transport Inc

Doing business as Smt Lines

USDOT activeAuthority activeCarrier & Broker · InterstateHazmat
  • USDOT136555
  • MC80252
  • MC825355
  • LocationSan Antonio, TX
  • Phone(210) 661-6791
  • Fleet277 power units · 252 drivers

Southwestern Motor Transport Inc (USDOT 136555, MC-80252) is an interstate motor carrier based in San Antonio, Texas with 277 power units and 252 drivers reported to FMCSA. Its USDOT number and operating authority are active. FMCSA records list 147 roadside inspections in the last 24 months.

Verification snapshot · FMCSA data as of Nov 12, 2026

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Operating authority

Status from the FMCSA Company Census File, November 12, 2026

DocketAuthority typeStatus
MC-80252Motor Carrier of Property (except Household Goods)Active
MC-825355Broker of Property (except Household Goods)Active

First granted on August 7, 1981 · see full authority history.

Insurance

FMCSA licensing system (Motus), November 13, 2026

  • Liability (BIPD) required$1,000,000
  • Liability (BIPD) on file$1,000,000
  • Cargo insurance required / on fileNo / No
  • Bond required / on fileNo / No

Filings on file

TypeInsurerCoverageEffective
Form BMC-82 BMC-82Protective Insurance Company$1,000,000Aug 1, 2026
Broker surety bond BMC-84Protective Insurance Company$75,000Oct 1, 2013
Form BMC-83 BMC-83Protective Insurance Company$5,000Mar 23, 2000
Insurance history: 4 past filings
TypeInsurerEffectiveEndedReason
Broker surety bondProtective Insurance Co.May 13, 2013Jun 23, 2013Cancel
Form BMC-82Protective Insurance CompanyMar 23, 2000—Cancel
CargoProtective Insurance Co.Jan 1, 1988Mar 23, 2000Replaced
Liability (BIPD)Protective Insurance Co.Jan 1, 1988Mar 23, 2000Replaced

Process agent (BOC-3)

C T Corporation System, Washington, DC

Inspections and crashes

Last 24 months · FMCSA Vehicle Inspection File and Crash File

147
Inspections
82 with no violations
1.4%
Driver out-of-service
2 of 147 inspections
13.7%
Vehicle out-of-service
16 of 117 inspections
9
Crashes
0 fatal · 4 injury · 5 tow-away

Inspected most often in: Texas (117), Arkansas (9), Indiana (6), Oklahoma (5), Illinois (4).

Most recent inspection on file: November 4, 2026.

FMCSA safety rating: Satisfactory (rated November 5, 2015)

Inspection and crash counts come from FMCSA records and are shown as reported. They are not a safety rating. A crash record does not mean the carrier was at fault. FMCSA has not rated a carrier unless a safety rating is listed. For FMCSA’s own data and its explanation, see the FMCSA SAFER Company Snapshot.

Out-of-service rates are calculated by CheckTrucking from inspection records (driver: levels I, II, III, VI; vehicle: levels I, II, V, VI). They are not FMCSA scores.

Authority history

FMCSA licensing records (Motus and legacy L&I) · migration-only status adjustments are not shown

  1. Granted — Broker of Property (except Household Goods); Property Broker
  2. Granted — Contract carrier authority
  3. Granted — Common carrier authority; Motor Carrier of Property (except Household Goods)
  4. Granted — Common carrier authority
  5. Granted — Common carrier authority
  6. Rejected — Common carrier authority
  7. Granted — Common carrier authority

Fleet and operations

From the company’s own registration (Form MCS-150), updated October 15, 2026

Power units
277
Trucks
277
Tractors owned
182
Trucks owned
37
Trailers owned
740
Drivers
252
CDL drivers
225
Interstate drivers
252
Miles traveled
14,460,000 (2025)
Classification
Authorized for hire
Hazardous materials
Yes
USDOT registered
June 1, 1974
Address
4600 Goldfield, San Antonio, TX 78218
Phone (registered with FMCSA)
(210) 661-6791

Cargo carried

  • General freight
  • Building materials
  • Oilfield equipment
  • Chemicals
  • Beverages
  • Paper products
  • Construction

Key facts

  • USDOT number 136555 was registered on June 1, 1974.
  • Operating authority MC-80252 was first granted on August 7, 1981.
  • The company last updated its FMCSA registration (Form MCS-150) on October 15, 2026.
  • It reported 14,460,000 vehicle miles traveled in 2025.
  • 3 insurance filings are on file, including Form BMC-82 coverage with Protective Insurance Company.
  • It had 147 roadside inspections in the last 24 months; 82 inspections recorded no violations.
  • FMCSA records list 9 reportable crashes in the last 24 months.
  • Its most recent FMCSA safety rating is Satisfactory, issued on November 5, 2015.
  • Its process agent filing (BOC-3) is with C T Corporation System.

Other carriers in San Antonio, TX

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