CSA
UnknownUSDOT 3934770· CARRIER
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LONGHORNS TRANSPORTATIONS

Legal: ROBERTO CARLOS DIAZ

695 NORMANDY ST APT 265, HOUSTON, TX, 77015-3463(832) 290-8431rocadiaz1991@gmail.comROBERTO DIAZ
Vetting snapshot
Authority
Unknown
per SAFER
Insurance
No active filing
not required
Vehicle OOS
no inspections
Driver OOS
no inspections
Crashes 24mo
0
clean
Red flags
1 flag
see details below
80
/ 100

Risk factors

Low riskVioCodes score
Possible reincarnation pattern — tied to an older inactive carrier

A weighted read of the public FMCSA signals below — authority, insurance, out-of-service, crashes, roadside OOS rates, and carrier connections. A starting point for vetting, not a guarantee.

Roadside inspection performance

Out-of-service rate vs national average. Lower is better.

Vehicle0 inspections · 0% OOS · National 22%
Driver0 inspections · 0% OOS · National 6.7%

Recommendations

What’s driving each score, what to do about it, and where it could go.

Vehicle and driver out-of-service rate exceeds the national average

High impact

Vehicle OOS rate is 50% vs the 22% national average. Driver OOS rate is 100% vs the 6.7% national average. Carriers above the national OOS average draw more enforcement attention (audits, roadside stops) and can see higher insurance premiums.

What to do
  • Review recent inspections with out-of-service violations and fix the root causes with equipment and drivers
  • Run a preventative-maintenance program; periodically inspect tires, brakes and lights
  • Reinforce thorough pre-trip and post-trip inspections; retrain where needed

Recommendations are generated from the carrier’s public FMCSA roadside-inspection record. Percentiles and projections are VioCodes estimates, not official FMCSA figures. Informational, not legal advice.

90-day safety improvement plan

What this carrier has struggled with most in the last 90 days — where to focus now.

2
Inspections
21
Violations
7
Out-of-service
0
Clean
Where the violations are
Other 38%Driver Fitness 24%Vehicle Maintenance 24%Not in SMS 14%
Focus here first
1Other
8 violations · 1 OOS · 38% of recent
  • 392.2-SLLSR×3State/Local Laws - State registration/tag violation
  • 396.17C×2Operating a CMV without proof of a periodic inspection
  • 390.21TB2-DOTOperate a CMV without USDOT number displayed. Must be preceded by the letters USDOT
Do this
  • Review these violations with drivers and add the fix to your pre-trip and PM routine
2Driver Fitness
5 violations · 5 OOS · 24% of recent
  • 391.11B2-Q×2Driver cannot satisfy the English language proficiency requirements of 391.11(b)(2) in accordance with the current corresponding FMCSA enforcement guidance (391. · OOS
  • 391.41APC×2Medical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency · OOS
  • 383.23A2-LCDLNLicense (CDL) - Operate a CMV and does not possess a valid CDL · OOS
Do this
  • Run a credential-expiration tracker and keep DQ files complete
  • Verify medical cards and endorsements before dispatch
3Vehicle Maintenance
5 violations · 1 OOS · 24% of recent
  • 393.75A3-TAOLTires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS · OOS
  • 393.9A-LBLLighting - Backup lamp inoperative
  • 396.17C-PIOperating a CMV without documentation of a periodic inspection
Do this
  • Gauge/thump every tire on the walk-around, including inner duals
  • Replace before tread hits the limit and correct low pressure immediately
Repeat offenders (same code, multiple times)
🎓
Turn these into driver coaching — and prove it
FleetTrained (my companion project) makes branded, multilingual training videos for these exact violations — your driver watches and gets a completion certificate for the file.

Based on roadside inspections in the last 90 days, ranked by what recurs most. Informational, not legal advice.

Inspection & crash map

live · FMCSA MCMIS

Every inspection and crash on record — hover a point for the summary, click for full detail (codes, severity, CSA points).

2
Inspections
21
Violations
7
Out-of-service
162
CSA points
0
Crashes
1
States
cleanviolOOS

CSA points = violation severity weight × FMCSA time weight (3× in the last 6 months, 2× at 6–12, 1× at 12–24). Points are spread within each state — FMCSA records the inspection state, not an exact location. Source: FMCSA MCMIS.

Equipment

VINs via NHTSA

4 distinct vehicles seen in this carrier’s roadside inspections.

2 truck 2 trailer
2007 PETERBILT 387
1XP7D49X77D652075· R556857 TX
2015 VANGUARD NATIONAL TRAILER CORPORATION (VNTC) VANGUARD NATIONAL TRAILER CORPORATION (VNTC)
5V8VC5325FM500368· 2354524 ME
2005 FREIGHTLINER Columbia
1FUJA6CK05LV37709· TONLY33 TX
2011 WABASH VANS Dry Van Duraplate
1JJV532D2BL498557· 162C992 TX

Equipment is inferred from VINs recorded on roadside inspections (FMCSA MCMIS), decoded via the NHTSA vPIC API — it reflects vehicles inspected, not a current fleet roster.

Company profile

FMCSA census

AUTHORIZED FOR HIRE

Power units
1
on file (MCS-150)
Drivers
1
1 hold a CDL
Annual mileage
reported 0
Recordable crash rate
per million miles
How far they run · drivers by operating lane
  • Intrastate · 100+ mi1 drivers
Company officer
ROBERTO DIAZ
Operation
Intrastate (Non-Hazmat)
Registered since
2022-08-13
Last MCS-150 update
2022-08-13
Census status
Active

Fleet: 1 trucks · 1 owned tractors · 1 owned trailers.

Source: FMCSA Company Census File (data.transportation.gov). Fleet and driver counts are self-reported on the carrier’s most recent MCS-150 filing.

Connections

carrier graph

This carrier shares VINs or officers with 35 other carriers — review the connections below as part of your vetting.

35
Connected carriers
4
Fleet-transfer links
1
Most shared VINs
31
Strong links
Possible reincarnation pattern: 7 DIAMONDS TRANSPORT LLC (USDOT 3783978, registered 2021) is inactive, shares this carrier’s officer, and predates it — worth checking whether this carrier re-registered to shed a prior record.
Strong· 31
1
7 DIAMONDS TRANSPORT LLC
USDOT 3783978Inactive· RIO RICO, AZ
Strong
Officer
2
BORUSAN PIPE US INC
USDOT 3962242Active· BAYTOWN, TX
Strong
Officer
3
DB RESEARCH LLP
USDOT 1156734Active· HARLINGEN, TX
Strong
Officer
4
DIAZ & ASSOCIATES
USDOT 4486786Active· MIAMI, FL
Strong
Officer
5
DIAZ TRUCKING TRANSPORT LLC
USDOT 3801374Inactive· WHITESTONE, NY
Strong
Officer
6
DIAZ'S EXPORT INC
USDOT 2492987Inactive· SOUTH HOLLAND, IL
Strong
Officer
7
GHCR CARGO S DE RL DE CV
USDOT 3009514Inactive· SAN DIEGO, CA
Strong
Officer
8
PECK'S TRUCKING LLC
USDOT 3461014Inactive· KNOXVILLE, TN
Strong
Officer
9
R C FLOORING INC
USDOT 2851444Active· HAYWARD, CA
Strong
Officer
10
RD AUTO TRANSPORT LLC
USDOT 4101337Inactive· NIAGARA FALLS, NY
Strong
Officer
11
RDP TRANSPORT CORP
USDOT 3312320Inactive· PORT ST LUCIE, FL
Strong
Officer
12
ROBERTO DIAZ
USDOT 1427052Active· TAMPA, FL
Strong
Officer
13
ROBERTO DIAZ
USDOT 1556892Active· BRIGHTON, CO
Strong
Officer
14
ROBERTO DIAZ
USDOT 1600181Inactive· EL PASO, TX
Strong
Officer
15
ROBERTO DIAZ
USDOT 1635300Active· WHITE PLAINS, NY
Strong
Officer
16
ROBERTO DIAZ
USDOT 2695454Active· SANTA MARIA, CA
Strong
Officer
17
ROBERTO DIAZ
USDOT 4388958Active· LAS VEGAS, NV
Strong
Officer
18
ROBERTO DIAZ
USDOT 3476431Inactive· CHULA VISTA, CA
Strong
Officer
19
ROBERTO DIAZ
USDOT 2922798Active· SAN LORENZO, CA
Strong
Officer
20
ROBERTO DIAZ
USDOT 2408596Inactive· LAS VEGAS, NV
Strong
Officer
21
ROBERTO DIAZ
USDOT 1856502Inactive· LAS VEGAS, NV
Strong
Officer
22
ROBERTO DIAZ
USDOT 2050325Inactive· LAS VEGAS, NV
Strong
Officer
23
ROBERTO DIAZ
USDOT 2121796Inactive· SURREY, BC
Strong
Officer
24
ROBERTO DIAZ
USDOT 3829011Active· LAS VEGAS, NV
Strong
Officer
25
ROBERTO DIAZ TRUCKING LLC
USDOT 3426426Active· BALDWIN PARK, CA
Strong
Officer
26
RODICIO TRUCKING INC
USDOT 3472492Inactive· MIAMI, FL
Strong
Officer
27
RODIMAX
USDOT 4218292Inactive· KISSIMMEE, FL
Strong
Officer
28
RYD TRANSPORT LLC
USDOT 3853496Inactive· EAST MEADOW, NY
Strong
Officer
29
THE OLD RANCH EVERGREEN
USDOT 1763146Active· BYERS, CO
Strong
Officer
30
TM TRANSPORT INC
USDOT 2528522Inactive· MIAMI GARDENS, FL
Strong
Officer
31
URBAN COWBOY TRUCKING LLC
USDOT 4211620Inactive· WICHITA, KS
Strong
Officer

Shared VINs come from FMCSA roadside-inspection records — a vehicle inspected under more than one carrier, often a fleet transfer or trailer interchange. Other links come from the FMCSA census. Shared identifiers are common and often legitimate — treat these as leads to investigate, not proof of wrongdoing.

Activity history

2 events
  1. 08/13/2022Registered with FMCSA

    AUTHORIZED FOR HIRE

  2. 08/13/2022MCS-150 update filed

Merged from FMCSA authority, insurance, out-of-service, and census records.

🚛

Operations

Classification

  • AUTHORIZED FOR HIRE

Area served

  • Intrastate (Non-Hazmat)

FMCSA safety rating

Rating
Not rated
Type
Rated
Last review
📄

MCS-150 registration

Form date
2022-08-13
Reported mileage

Got a violation you want to contest?

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Data sourced from public FMCSA records via safer.fmcsa.dot.gov · Latest FMCSA update: Sep 2026 · Page refreshed: Sep 23, 2026, 4:05 AM. VioCodes is not affiliated with FMCSA. To dispute incorrect data, file a DataQs Request for Data Review.