GUILLERMO A ZUBIA
HESPERIA, CA
DBA: ZUBIA TRUCKING
Book with caution — review signals below
No hard OOS / revoked / uninsured blocker, but elevated risk signals need a human look before booking.
- OOS rate worse than size peers Driver and/or vehicle out-of-service rate is above the peer median.
Plain-text risk summary (print / paste)
TruckCodex risk summary — GUILLERMO A ZUBIA (USDOT 1139279) 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 Blockers: (none) Cautions: • OOS rate worse than size peers — Driver and/or vehicle out-of-service rate is above the peer median. On file: (none) Source: https://truckcodex.com/usdot/1139279/ As of: Jul 21, 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 B
Composite of 3/5 scored components (mean 72/100). Expand for per-signal evidence. Heuristic — not an FMCSA rating or legal advice.
B
confidence 60% · 3/5 signals
Compliance grade B
Composite of 3/5 scored components (mean 72/100). Expand for per-signal evidence. Heuristic — not an FMCSA rating or legal advice.
Active census status with no OOS order or revoked authority on file.
Insurance/BIPD signal not resolved for this carrier.
NR reason: No active policies and no uninsured flag to score against.
Driver OOS 4% vs peer median 0% (worse). Vehicle OOS 16% vs peer median 11.55% (worse). n=78588 same-size ACTIVE peers.
FMCSA has not assigned this carrier a formal safety rating. We do not invent one.
NR reason: No published FMCSA safety_rating.
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.
Fleet size changes
- Power Units +3 (10 → 13) · Jun 27, 2026 · FMCSA Company Census
- Drivers +11 (5 → 16) · Jun 27, 2026 · FMCSA Company Census
No authority breakdown on file.
No active policies on file.
No BOC-3 filing on file.
Company profile
No active FMCSA cargo filing on file.
FMCSA L&I filing evidence — not a shipper certificate of insurance (COI). Cargo (BMC-34) is primarily an HHG / household-goods requirement; general freight carriers often have none.
Fleet details (MCS-150)
| Vehicle type | Owned | Term leased | Trip leased |
|---|---|---|---|
| Truck tractors | 3 | 0 | 0 |
| Trailers | 4 | 0 | 0 |
| Trucks | 10 | 0 | 0 |
Self-reported on the carrier’s Form MCS-150 (FMCSA Company Census).
Inspections (24 months)
All 55 inspections →| Driver | Vehicle | Hazmat | |
|---|---|---|---|
| Inspections | 29 | 29 | 0 |
| OOS inspections | 1 | 4 | 0 |
| OOS percentage | 3.45% | 13.79% | — |
| 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%).
Carrier analysis & narrative context SEO summary, status notes, AI overview, and safety profiles
GUILLERMO A ZUBIA is a motor carrier based in HESPERIA, CA, registered with the FMCSA under USDOT 1139279. 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 13 power units and 16 drivers, with 55 roadside inspections on file and a peak out-of-service rate of 16.0%. 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.
GUILLERMO A ZUBIA is a small fleet, operating 10 power units and 5 drivers, based in Hesperia, CA. Across 29 roadside inspections in the last 24 months, the fleet recorded a 17.2% out-of-service rate, with no reportable crashes on file. no operating authority record was located.
29 roadside inspections over the last 24 months, up 26% versus the prior 24 months, most heavily in CA (29 stops), with Level 1 inspections the most common.
17.2% out-of-service rate; led by Unsafe Driving (47.8% of violations); top code 392.2-SLLSR (Operating a CMV while ill or fatigued) cited 11 times.
The fleet comprises 10 power units (small fleet) and 5 drivers; International, Mack, and Wilx are the most-inspected makes.
Risk Signals
Out-of-Service rate vs same-size peers FMCSA roadside inspections, % placed out-of-service
Compared against 78,588 ACTIVE carriers operating 6–20 power units (±50% of this carrier's 13 unit fleet).
Fleet History
Sourced from FMCSA daily imports; field-level change log. 2 tracked changes on record. · 1 driver-count change
Record Changes
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-
Drivers 5 16FMCSA Company Census
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Power Units 10 13FMCSA Company Census
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Power Units Over Time
Bar height reflects reported power-unit count after each FMCSA filing update.
Inspection Analytics Monthly activity · BASIC mix · state map
Monthly Inspection Activity (24 months)
Violations by BASIC Category
Activity by State
| State | Inspections | OOS | OOS % | Last Inspection |
|---|---|---|---|---|
| California (CA) | 29 | 5 | 17.2% | Jul 15, 2026 |
Vehicle Fleet Top makes and models observed in roadside inspections
| Make | Model | Inspections |
|---|---|---|
| International | 39 | |
| Trim | 4 | |
| Wilson | 4 | |
| Mack | 3 | |
| Freightliner | 2 |
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 20, 2026 |
| Controlled Substances / Alcohol | 0 | — | 0.00 | 0 | — | Jul 20, 2026 |
| Hours of Service | 2 | — | 0.31 | 0 | — | Jul 20, 2026 |
| Unsafe Driving | 1 | — | 0.19 | 0 | — | Jul 20, 2026 |
| Vehicle Maintenance | 10 | — | 2.72 | 3 | — | Jul 20, 2026 |
Higher percentiles indicate worse performance relative to peer carriers. Carriers at or above the FMCSA intervention threshold are marked ALERT.
Recent Inspections (55 rows) View all 55 →
| Inspection # | Date ▼ | State | Level | Station | Vehicle | Violations | Top Codes | OOS |
|---|---|---|---|---|---|---|---|---|
| 88415161 | Jul 15, 2026 | CA | 3 | — |
INTERNATIONAL STRAIGHT TRUCK
|
3 | 392.9A2-C, 392.2-SLLSR, 392.2-SLLTCD | Yes |
| 88314419 | Jul 2, 2026 | CA | 3 | — |
INTERNATIONAL STRAIGHT TRUCK
|
1 | 392.2-SLLSR | No |
| 87716390 | Apr 27, 2026 | CA | 1 | CAJON PLATFORM SCALES |
INTERNATIONAL STRAIGHT TRUCK
|
3 | 3A1-BALR, 2-SLLEQP, 2-SLLSR | Yes |
| 87256059 | Mar 10, 2026 | CA | 1 | US-395 NOF LA MESA |
INTERNATIONAL STRAIGHT TRUCK
|
0 | — | No |
| 86720584 | Jan 6, 2026 | CA | 2 | BISHOP SCALES |
INTERNATIONAL STRAIGHT TRUCK
|
0 | — | No |
| 86719903 | Jan 6, 2026 | CA | 2 | FONTANA |
INTERNATIONAL STRAIGHT TRUCK
|
0 | — | No |
| 86481891 | Dec 3, 2025 | CA | 1 | ca-conejo-if-n/b |
INTERNATIONAL STRAIGHT TRUCK
|
3 | 392.2-SLLSR, 392.2-SLLDL | No |
| 86481275 | Dec 2, 2025 | CA | 1 | RAINBOW IF |
INTERNATIONAL STRAIGHT TRUCK
|
3 | 392.2-SLLSR, 393.24D-L, 393.45D-B | No |
| 86451901 | Dec 1, 2025 | CA | 3 | DESERT HILLS IF |
INTERNATIONAL STRAIGHT TRUCK
|
1 | 392.2-SLLSR | No |
| 85687150 | Sep 2, 2025 | CA | 2 | RAINBOW IF |
INTERNATIONAL STRAIGHT TRUCK
|
1 | 392.2-SLLSR | No |
| 85611893 | Aug 26, 2025 | CA | 2 | CASTAIC IF |
INTERNATIONAL STRAIGHT TRUCK
|
0 | — | No |
| 85445816 | Aug 8, 2025 | CA | 2 | WB PERALTA SCALE |
INTERNATIONAL STRAIGHT TRUCK
|
2 | 392.2-SLLEWA1, 392.2-SLLEQP | No |
| 85343380 | Jul 25, 2025 | CA | 1 | WB PERALTA SCALE |
INTERNATIONAL STRAIGHT TRUCK
|
0 | — | No |
| 84746543 | May 7, 2025 | CA | 5 | 5475 26TH ST |
INTERNATIONAL TRUCK TRACTOR
|
0 | — | No |
| 84746542 | May 7, 2025 | CA | 5 | 5475 26TH ST |
INTERNATIONAL STRAIGHT TRUCK
|
0 | — | No |
| 84482652 | Apr 22, 2025 | CA | 4 | ca-mast-blvd-n/of-sr-52 |
INTERNATIONAL STRAIGHT TRUCK
|
3 | 395.8A1-HOSP, 392.2-SLLSR, 392.2-SLLEQP | Yes |
| 84459762 | Apr 21, 2025 | CA | 1 | CARSON PLATFORM SCALES |
INTERNATIONAL STRAIGHT TRUCK
|
0 | — | No |
| 84432541 | Apr 16, 2025 | CA | 1 | ca-conejo-if-n/b |
INTERNATIONAL STRAIGHT TRUCK
|
3 | 392.2-SLLSR, 393.45B2-B-AIR | No |
| 84287383 | Mar 28, 2025 | CA | 1 | ca-rainbow-if-(southbound) |
INTERNATIONAL STRAIGHT TRUCK
|
9 | 393.45B2-BHTD, 393.75A3-TAOL, 392.2-SLLSR | Yes |
| 83988269 | Feb 25, 2025 | CA | 1 | RAINBOW IF |
INTERNATIONAL STRAIGHT TRUCK
|
0 | — | No |
| 83961563 | Feb 25, 2025 | CA | 1 | INDUSTRY |
INTERNATIONAL STRAIGHT TRUCK
|
4 | 393.203B-CBP, 392.2-SLLSR, 393.110C-C | No |
| 83913575 | Feb 17, 2025 | CA | 2 | RAINBOW IF |
INTERNATIONAL STRAIGHT TRUCK
|
0 | — | No |
| 83812916 | Feb 7, 2025 | CA | 3 | GOLETA |
INTERNATIONAL STRAIGHT TRUCK
|
1 | 392.2SLLHOS | No |
| 83501251 | Dec 26, 2024 | CA | 1 | RAINBOW IF |
INTERNATIONAL STRAIGHT TRUCK
|
3 | 393.207A-STBW, 393.75A3-TAOL, 396.3A1-BOS | Yes |
| 82882509 | Oct 3, 2024 | CA | 1 | CAJON NORTHBOUND SCALES |
INTERNATIONAL STRAIGHT TRUCK
|
0 | — | No |
Recent Crashes (2 rows)
| Report # | Date ▼ | State | Fatalities | Injuries | Tow | Hazmat | Severity |
|---|---|---|---|---|---|---|---|
| CA5802301132 | Apr 10, 2023 | CA | 0 | 1 | Yes | No | Injury |
| CA5502201240 | Mar 10, 2022 | CA | 0 | 2 | Yes | No | Injury |
Top Stations & Violation Codes Where this carrier gets inspected and what they get cited for
Most-Inspected Stations
| Station | State | Inspections | OOS |
|---|---|---|---|
| RAINBOW IF | CA | 12 | 3 |
| 5475 26TH ST | CA | 6 | 1 |
| WB PERALTA SCALE | CA | 4 | 1 |
| BISHOP SCALES | CA | 2 | 1 |
| 405 NB CARSON SCALES | CA | 1 | 0 |
| ANAHEIM | CA | 1 | 0 |
| ANGEL STADIUM | CA | 1 | 0 |
| ARROWHEAD | CA | 1 | 0 |
| BALDWIN PARK AREA | CA | 1 | 0 |
| CAJON NORTHBOUND SCALES | CA | 1 | 0 |
Top Violation Codes Cited
| Code | Description | Category | Cited | OOS |
|---|---|---|---|---|
| 392.2 | Violation of Local Laws - Explain: | Unsafe Driving | 11 | 1 |
| 396.3(a)(1) | Inspection, repair and maintenance of parts and accessories | Vehicle Maintenance | 8 | 2 |
| 393.45(b)(2) | Brake hose or tubing chafing and/or kinking | Vehicle Maintenance | 3 | 1 |
| 393.75(a)(3) | Tire-flat and/or audible air leak | Vehicle Maintenance | 3 | 3 |
| 393.106(d) | Insufficient aggregate working load limit | Vehicle Maintenance | 1 | 1 |
| 393.11 | No or defective lighting devices or reflective material as required | Vehicle Maintenance | 1 | 0 |
| 393.110(b) | Insufficient tiedowns to prevent forward movement for load not blocked by headerboard, bulkhead, or other cargo. | Vehicle Maintenance | 1 | 1 |
| 393.207(b) | Adjustable axle locking pins missing or not engaged | Vehicle Maintenance | 1 | 1 |
| 393.45 | Brake tubing and hose adequacy | Vehicle Maintenance | 1 | 1 |
| 393.47(e) | Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt | Vehicle Maintenance | 1 | 0 |
Related Records Cross-references to every adjacent page
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California carriers
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Hesperia carriers
Carriers based in Hesperia, CA
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Stations in California
Where this carrier might be inspected
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55 inspections
Full roadside inspection history
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2 reportable crashes
FMCSA MCMIS crash log
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Fleet recall search
NHTSA recalls covering this fleet's vehicle years/makes
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File a complaint
Open the FMCSA National Consumer Complaint form for this carrier
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Carrier comparison tool
Side-by-side vs. other carriers
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Certificate lookup
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How FMCSA safety ratings work
BASIC percentiles and compliance review context
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BOC-3 process agents explained
Why every interstate carrier must file a process agent
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FMCSA compliance filings guide
MCS-150, insurance, and authority filing requirements
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Roadside inspection rights
What drivers and carriers can expect during a stop
How to verify GUILLERMO A ZUBIA
- 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.
- 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.
- 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.
- 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.
- 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 GUILLERMO A ZUBIA
Is GUILLERMO A ZUBIA an active motor carrier? ▾
What is GUILLERMO A ZUBIA's safety rating? ▾
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What is GUILLERMO A ZUBIA's out-of-service rate? ▾
Where is GUILLERMO A ZUBIA based? ▾
Does GUILLERMO A ZUBIA have valid operating authority? ▾
How many trucks and drivers does GUILLERMO A ZUBIA operate? ▾
Has GUILLERMO A ZUBIA had any crashes? ▾
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.
Census, SAFER, SMS, Licensing & Insurance (L&I), roadside inspections, crashes, and authority history.
Vehicle recall campaigns, defect investigations, and consumer safety complaints (SCRS).
Cross-border carrier registry and Canadian recall campaigns where applicable.
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.