TruckCodex

STC TRANS CORP

BUENA PARK, CA

USDOT 3887785 Active AUTHORIZED FOR HIRE Company officer: SOOHYUNG JEON General Freight Dry Bulk Paper Products Based in BUENA PARK, CA Grade A · 94
Brokers & shippers · booking check

Book with caution — review signals below

No hard OOS / revoked / uninsured blocker, but elevated risk signals need a human look before booking.

Caution
Coverage resumed · Jul 11, 2023
Policy effective · Sep 26, 2025
Review these
  • Prior insurance gap · 11 days Jun 30, 2023 → Jul 11, 2023
On file
  • 1 active operating authority
  • Insurance on file · $750,000 STAR MUTUAL RRG · 91X Details →
  • BOC-3 process agent on file #1 A BOC-3 FILING INC Details →
Company officer: SOOHYUNG JEON
Cargo: General Freight, Dry Bulk, Paper Products
Built for brokers and shippers deciding whether to tender. Always confirm on FMCSA SAFER and L&I before booking — TruckCodex mirrors public filings and can lag by up to a day.
Plain-text risk summary (print / paste) 
TruckCodex risk summary — STC TRANS CORP (USDOT 3887785)
Verdict: CAUTION
Book with caution — review signals below
No hard OOS / revoked / uninsured blocker, but elevated risk signals need a human look before booking.

Authority / census status: Active
Active BIPD limit: $750,000
Officer(s): SOOHYUNG JEON (Company officer)

Blockers:
  (none)

Cautions:
  • Prior insurance gap · 11 days — Jun 30, 2023 → Jul 11, 2023

On file:
  • 1 active operating authority
  • Insurance on file · $750,000 — STAR MUTUAL RRG · 91X
  • BOC-3 process agent on file — #1 A BOC-3 FILING INC

Source: https://truckcodex.com/usdot/3887785/
As of: Jul 17, 2026
Always confirm on FMCSA SAFER and L&I before tendering — TruckCodex mirrors public filings and can lag by up to a day.
TruckCodex · compliance grade

Compliance grade A

Composite of 4/5 scored components (mean 94/100). Expand for per-signal evidence. Heuristic — not an FMCSA rating or legal advice.

A confidence 80% · 4/5 signals
Authority / census
Active · 100/100

Active census status with no OOS order or revoked authority on file.

Insurance / BIPD
BIPD active · 100/100

Active BIPD/Primary-like policy on file in our insurance history.

OOS vs peers
On par with peers · 75/100

Driver OOS 0% vs peer median 0% (neutral). Vehicle OOS 0% vs peer median 0% (neutral). n=240452 same-size ACTIVE peers.

FMCSA safety rating
Unrated

FMCSA has not assigned this carrier a formal safety rating. We do not invent one.

NR reason: No published FMCSA safety_rating.

Insurance-watch tier
Not on watch · 100/100

No BMC-91 insurance-lapse watch classification on file for this USDOT.

TruckCodex compliance grade from authority, BIPD, peer OOS, FMCSA safety rating, and insurance-watch signals. Not legal advice. See methodology. Booking triage on this page: Caution.

Operating authority
Insurance

STAR MUTUAL RRG · 91X · $750,000

1 active policy

BOC-3 agent

#1 A BOC-3 FILING INC

Company profile

Company details
USDOT 3887785
MC / docket MC1428360
Company officer SOOHYUNG JEON
Operation AUTHORIZED FOR HIRE
Cargo carried
General Freight, Dry Bulk, Paper Products
Fleet size 1 units
Drivers 1
Annual mileage 112,275 mi
Contact & address
Phone: (678) 308-4770
Email: [email protected]
Physical
18 FRANCES CIR
BUENA PARK, CA 90621
Mailing address matches physical.
Registration & safety rating
USDOT 3887785
Operation AUTHORIZED FOR HIRE
Annual mileage (MCS-150) 112,275 mi
vs. National Average
Vehicle OOS Rate 0.0% vs 23.4% -23.4 pts
Driver OOS Rate 0.0% vs 6.7% -6.7 pts
Violations per Inspection 0.17 vs 1.80 -1.63
Peer tier (small fleets (≤10 power units)) median OOS rate: 50%
Active insurance
Related filings

Fleet details (MCS-150)

Vehicle type Owned Term leased Trip leased
Truck tractors 1 0 0
Trailers 1 0 0

Self-reported on the carrier’s Form MCS-150 (FMCSA Company Census).

Accident reports (24 months)

All 1 crashes →
Last 6 months 6–12 months 12–24 months Total
Fatalities 0 0 0 0
Injuries 0 0 0 0
Tow-away 0 0 1 1
Crash reports 0 0 1 1

Reportable crashes from FMCSA MCMIS for the trailing 24 months. Counts may differ slightly from SAFER due to reporting lag.

Inspections (24 months)

All 7 inspections →
Driver Vehicle Hazmat
Inspections 6 6 0
OOS inspections 0 0 0
OOS percentage 0% 0% —
National average 6.67% 22.26% 4.44%

Roadside inspections in the last 24 months. National averages are FMCSA MCSAP reference rates (driver ~6.7%, vehicle ~23.4%, hazmat ~4.4%).

Power Units
1
Drivers
1
Inspections
7
FMCSA roadside history
OOS Rate (peak)
—
Crashes (24m)
1
Authorities
1
1 active
Carrier analysis & narrative context SEO summary, status notes, AI overview, and safety profiles

STC TRANS CORP is a motor carrier based in BUENA PARK, CA, registered with the FMCSA under USDOT 3887785. The carrier is currently active in FMCSA's records, and has not yet received a formal FMCSA safety rating. MCS-150 self-reporting puts the fleet at 1 power unit and 1 driver, with 7 roadside inspections on file. Use this page to verify the carrier's authority and insurance, review its inspection and crash history, and cross-reference live data on FMCSA SAFER before booking a load or onboarding a partner.

Carrier is unrated

FMCSA has not assigned this carrier a formal safety rating. Use the inspection history and BASIC scores below to assess on-road performance.

Carrier overview

STC TRANS CORP is a small fleet, operating 1 power unit and 1 driver, based in Buena Park, CA. Across 6 roadside inspections in the last 24 months, the fleet recorded a 0.0% out-of-service rate, with 1 reportable crash. Operating authority is active for common.

Inspection profile

6 roadside inspections over the last 24 months, up 500% versus the prior 24 months, concentrated in KS (2) and IL (1), with Level 3 inspections the most common.

Violation profile

0.0% out-of-service rate; led by Vehicle Maintenance (100.0% of violations); top code 393.11B-CSRIGRR (Lighting devices/reflectors) cited 1 times.

Fleet profile

The fleet comprises 1 power unit (small fleet) and 1 driver; Volvo, Wabash National, and Wabas are the most-inspected makes.

Risk Signals

Authority revoked
1 revocation on record.

Out-of-Service rate vs same-size peers FMCSA roadside inspections, % placed out-of-service

Compared against 240,452 ACTIVE carriers operating 1–2 power units (±50% of this carrier's 1 unit fleet).

This carrier — Driver OOS
0%
Drivers placed out-of-service at roadside inspections
Peer median
0%
Median across 240,452 same-size peers
Verdict
On par with peers
Delta 0 pts vs peer median (lower is safer)
This carrier — Vehicle OOS
0%
Vehicles placed out-of-service at roadside inspections
Peer median
0%
Median across 240,452 same-size peers
Verdict
On par with peers
Delta 0 pts vs peer median (lower is safer)

Historical coverage gap detected (1)

  • No active BIPD/Primary insurance from Jun 30, 2023 to Jul 11, 2023 (11 days)
Inspection Analytics Monthly activity · BASIC mix · state map

Monthly Inspection Activity (24 months)

2024-11 2025-08

Violations by BASIC Category

Federal BASIC buckets for every citation issued against this carrier over the past 24 months.
Vehicle Maintenance
1 violation

Activity by State

States this carrier has been inspected in over the past 24 months.
State Inspections OOS OOS % Last Inspection
Kansas (KS) 2 0 0.0% Aug 17, 2025
Arizona (AZ) 1 0 0.0% Jan 16, 2025
Florida (FL) 1 0 0.0% May 19, 2025
Illinois (IL) 1 0 0.0% Nov 4, 2024
New Jersey (NJ) 1 0 0.0% Dec 3, 2024
Vehicle Fleet Top makes and models observed in roadside inspections
Make Model Inspections
Volvo 7
Wabash National 5
Wabas 1
Wabnl 1
SMS BASIC Scores FMCSA Safety Measurement System per-BASIC scores
BASIC Inspections Serious Measure Percentile Alert As Of
Driver Fitness 0 — 0.00 0 — Jul 13, 2026
Controlled Substances / Alcohol 0 — 0.00 0 — Jul 13, 2026
Hours of Service 0 — 0.00 0 — Jul 13, 2026
Unsafe Driving 0 — 0.00 0 — Jul 13, 2026
Vehicle Maintenance 1 — 0.75 1 — Jul 13, 2026

Higher percentiles indicate worse performance relative to peer carriers. Carriers at or above the FMCSA intervention threshold are marked ALERT.

Recent Inspections (7 rows) View all 7 →
Inspection # Date ▼ State Level Station Vehicle Violations Top Codes OOS
85532567 Aug 17, 2025 KS 2 ks-chase-county---017
VOLV TRUCK TRACTOR
CA YP36293 · 4V4NC9EH0PN611728
0 — No
84763348 May 19, 2025 FL 2 LEE FL
VOLVO TRUCK TRACTOR
CA YP36293 · 4V4NC9EH0PN611728
0 — No
83650917 Jan 16, 2025 AZ 2 EHRENBERG AZ
VOLVO TRUCK TRACTOR
CA YP36293 · 4V4NC9EH0PN611728
1 393.11B-CSRIGRR No
83307250 Dec 3, 2024 NJ 3 GREENWICH SCALE EB
VOLV TRUCK TRACTOR
CA YP36293 · 4V4NC9EH0PN611728
0 — No
83105707 Nov 6, 2024 KS 3 ks-olathe-south-m.c.i.s.-#24w
VOLV TRUCK TRACTOR
CA YP36293 · 4V4NC9EH0PN611728
0 — No
83135371 Nov 4, 2024 IL 3 il-242---interstate-55
VOLV TRUCK TRACTOR
CA YP36293 · 4V4NC9EH0PN611728
0 — No
80890640 Feb 19, 2024 IL 3 I-55
VOLV TRUCK TRACTOR
CA YP36293 · 4V4NC9EH0PN611728
0 — No
Recent Crashes (1 row)
Report # Date ▼ State Fatalities Injuries Tow Hazmat Severity
ILX003620597 Nov 4, 2024 IL 0 0 Yes No Tow
Authority Records (1 docket)
common
MC1428360
Active
—
View full authority record →
MC Certificate Documents (2 PDFs)

Authority Records (above) are FMCSA docket status and lifecycle events. MC Certificate Documents here are the archived PDF letters for each action — grants, reinstatements, revocations, name changes, and transfers. They are related but not the same dataset: one row per PDF letter, not one file per docket.

Click a row to open that specific letter. Multiple letters per docket are listed separately by action type and date.

Date Docket Action Authority PDF
Jul 20, 2023 MC1428360-C REI REINSTATEMENT REI →
Jul 7, 2022 MC1428360-C CPL REVOCATION CPL →
Insurance Coverage Timeline (8 rows)

Every insurance policy on file, newest effective date first. Amber rows mark BIPD/Primary coverage gaps.

Insurer Policy # Type Limit Effective Cancel Status
STAR MUTUAL RRG 31312-6806AB-25 91X $750,000 Sep 26, 2025 On file ACTIVE
UNITED FINANCIAL CASUALTY COMPANY CA999432446 BIPD/Primary — Jul 11, 2025 Sep 26, 2025 CANCELLED
A-ONE COMMERCIAL INSURANCE RRG, INC A-ONE2024-5027 BIPD/Primary — Jul 11, 2024 Sep 7, 2024 CANCELLED
A-ONE COMMERCIAL INSURANCE RRG, INC A-ONE2024-5027 BIPD/Primary — Jul 11, 2024 Jul 11, 2024 REPLACED
A-ONE COMMERCIAL INSURANCE RRG, INC A-ONE2024-5027 BIPD/Primary — Jul 11, 2024 Jul 11, 2025 CANCELLED
EVERSPAN INDEMNITY INSURANCE COMPANY CW1EII-164555-01 BIPD/Primary — Jul 11, 2023 Jul 11, 2024 CANCELLED
Coverage gap — 11 days without BIPD/Primary coverage from Jun 30, 2023 to Jul 11, 2023
DB INSURANCE CO., LTD (U.S.BRANCH) CCA-0018029-00 BIPD/Primary — Jun 30, 2022 Jun 30, 2023 CANCELLED
Compliance Timeline Merged authority / insurance / enforcement events
  1. Sep 26, 2025
    insurance
    CANCEL — UNITED FINANCIAL CASUALTY COMPANY
  2. Sep 22, 2025
    authority
    DISCONTINUED REVOCATION — COMMON
    Details →
  3. Jul 11, 2025
    insurance
    CANCEL — A-ONE COMMERCIAL INSURANCE RRG, INC
  4. Jun 30, 2025
    authority
    DISCONTINUED REVOCATION — COMMON
    Details →
  5. Sep 7, 2024
    insurance
    TERM/CANCL — A-ONE COMMERCIAL INSURANCE RRG, INC
  6. Aug 15, 2024
    authority
    DISCONTINUED REVOCATION — COMMON
    Details →
  7. Jul 11, 2024
    authority
    DISCONTINUED REVOCATION — COMMON
    Details →
  8. Jul 11, 2024
    insurance
    CANCEL — EVERSPAN INDEMNITY INSURANCE COMPANY
  9. Jul 11, 2024
    insurance
    TERM/REPL — A-ONE COMMERCIAL INSURANCE RRG, INC
  10. Jul 20, 2023
    authority
    REINSTATED — MOTOR PROPERTY COMMON CARRIER
    Details →
  11. Jul 10, 2023
    authority
    REVOKED — MOTOR PROPERTY COMMON CARRIER
    Details →
  12. Jul 10, 2023
    authority
    Authority revoked — INVOLUNTARY REVOCATION
  13. Jun 30, 2023
    insurance
    CANCEL — DB INSURANCE CO., LTD (U.S.BRANCH)
  14. Jun 30, 2023
    insurance gap
    Coverage gap: 11 days without BIPD/Primary insurance (through Jul 11, 2023)
Top Stations & Violation Codes Where this carrier gets inspected and what they get cited for

Most-Inspected Stations

Station State Inspections OOS
EHRENBERG AZ AZ 1 0
LEE FL FL 1 0
I-55 IL 1 0
GREENWICH SCALE EB NJ 1 0
Related Records Cross-references to every adjacent page
Directory
Authority Records
Insurance Carriers
Process Agent (BOC-3)
Carrier Records
Discover
Explainers

How to verify STC TRANS CORP

  1. Verify USDOT and MC numbers match the carrier's documents. Compare the USDOT number and MC docket on this page to the numbers on the carrier's invoice, rate confirmation, or load-board listing. A mismatch between the carrier's claimed numbers and the registered legal name is the single most common red flag.
  2. Check active operating authority and insurance status. Confirm the Authority Records show at least one ACTIVE docket for the type of operation you're booking, and that the Active Insurance card lists a current BIPD/Primary policy. A revoked authority or uninsured carrier cannot legally operate.
  3. Review safety rating and SMS BASIC scores. Check the carrier's FMCSA safety rating (if any) and the SMS BASIC table. A high percentile in any BASIC category — especially Unsafe Driving, HOS, or Vehicle Maintenance — is worth investigating before tendering a load.
  4. Examine inspection and crash history. Open the Inspection History and Crash History subpages for the full record. Look for patterns: repeat OOS findings on the same unit, multiple crashes in a short window, or violations clustered in one BASIC category.
  5. Cross-reference real-time data with FMCSA SAFER. For the most current snapshot — within 24 hours of any insurer filing or authority change — click through to the FMCSA SAFER lookup. TruckCodex mirrors SAFER and L&I daily; SAFER itself reflects filings within 24 hours.

Frequently asked questions about STC TRANS CORP

Is STC TRANS CORP an active motor carrier? ▾
Yes. STC TRANS CORP is registered with the FMCSA under USDOT 3887785 and is currently shown as Active in the agency's Motor Carrier Management Information System (MCMIS). Active status means the carrier may legally operate, contingent on continuous insurance and authority filings.
What is STC TRANS CORP's safety rating? ▾
STC TRANS CORP is unrated. FMCSA assigns formal safety ratings only after a compliance review, and the agency has not yet completed one for this carrier. Being unrated is not by itself a red flag — most active carriers in the database are unrated. Review the inspection and BASIC data below to assess on-road performance.
How many inspections has STC TRANS CORP had? ▾
7 roadside inspections are on file for STC TRANS CORP in FMCSA's MCMIS database. Each inspection is summarized in the Inspection History section below — sortable by date, state, level, and out-of-service result. Newer inspections are pulled from the FMCSA SMS data feed daily.
What is STC TRANS CORP's out-of-service rate? ▾
STC TRANS CORP has no out-of-service findings on its inspection record. Across 7 inspections, no driver or vehicle has been placed out of service — a clean record relative to the national averages of roughly 6.7% (driver) and 23.4% (vehicle).
Where is STC TRANS CORP based? ▾
STC TRANS CORP reports its physical address to the FMCSA as 18 FRANCES CIR, BUENA PARK, California 90621. Carriers must file a Form MCS-150 every two years to keep their address current; an outdated address is a common compliance flag.
Does STC TRANS CORP have valid operating authority? ▾
Yes. STC TRANS CORP holds 1 active FMCSA operating authority (MC1428360). Each docket appears in the Authority Records section below with its full event history. Active authority means the carrier may legally operate as a for-hire carrier, contingent on current insurance and BOC-3 process-agent filings.
How many trucks and drivers does STC TRANS CORP operate? ▾
STC TRANS CORP self-reports 1 power unit and 1 driver on its most recent FMCSA Form MCS-150 filing. Power-unit and driver counts come from the carrier directly and are required to be updated every two years; very large fluctuations between filings can indicate fleet changes worth investigating.
Has STC TRANS CORP had any crashes? ▾
1 FMCSA-reportable crash is on file for STC TRANS CORP in MCMIS. A reportable crash is one resulting in a fatality, an injury requiring transport for medical attention, or a vehicle disabled and towed from the scene. The full crash log is on the Crashes subpage with date, state, and outcome details.

About FMCSA carrier records

Every commercial motor carrier operating in the United States is required to register with the Federal Motor Carrier Safety Administration (FMCSA) and obtain a USDOT number. The USDOT number is a permanent, unique identifier — once assigned, it stays with the carrier for life and is never reissued to another company. Carriers must update their registration every two years on Form MCS-150 to keep their address, fleet size, and operating data current.

Carrier safety data lives in FMCSA's Motor Carrier Management Information System (MCMIS): roadside inspections, crashes, out-of-service findings, and the seven Behavior Analysis and Safety Improvement Categories (BASICs) that make up the SMS scoring methodology. For-hire carriers must also hold operating authority — an MC, FF, or MX docket number — which is separate from the USDOT number and requires continuous insurance and BOC-3 process-agent filings to remain active.

TruckCodex mirrors FMCSA's public SAFER and L&I systems on a daily refresh cycle. Every record on this page reflects what FMCSA has on file. We do not edit or modify carrier data — for real-time confirmation immediately before a transaction, click through to the FMCSA SAFER lookup linked in the related records section above. Safety ratings, when present, come from formal compliance reviews; most active carriers have not been reviewed and are correctly listed as unrated.

Data sources & freshness

TruckCodex aggregates official public-sector datasets. See the Source registry for dataset-level coverage and the Freshness log for last-import timestamps.

FMCSA

Census, SAFER, SMS, Licensing & Insurance (L&I), roadside inspections, crashes, and authority history.

Refreshed daily.
NHTSA

Vehicle recall campaigns, defect investigations, and consumer safety complaints (SCRS).

Refreshed daily.
EIA

Retail diesel and gasoline price history and state fuel-tax tables.

Refreshed weekly.
Transport Canada

Cross-border carrier registry and Canadian recall campaigns where applicable.

Refreshed weekly.

TruckCodex is an independent aggregator; it is not affiliated with FMCSA, NHTSA, EIA, or Transport Canada. Always verify compliance-critical information directly with the originating agency.