- Common (Property) authority is currently revoked as of May 5, 2026 · Docket MC1582224.
- No active BIPD/Primary insurance on file — uninsured for 385 days (since Apr 28, 2025). A carrier without active primary liability coverage cannot legally operate.
DIMAS & SONS TRANSPORT INC
DIMAS & SONS TRANSPORT INC is a motor carrier based in LOS ANGELES, CA, registered with the FMCSA under USDOT 4048127. 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 2 power units and 2 drivers, with 17 roadside inspections on file and a peak out-of-service rate of 16.7%. 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. Most carriers are unrated until they undergo a compliance review — being unrated is not, by itself, a red flag, but it does mean federal investigators have not formally evaluated the carrier's safety management practices. Use the inspection history and BASIC scores below to assess on-road performance.
DIMAS & SONS TRANSPORT INC is a small fleet, operating 2 power units and 2 drivers, based in Los Angeles, CA. Across 8 roadside inspections in the last 24 months, the fleet recorded a 25.0% out-of-service rate, with 1 reportable crash. The carrier currently has no active BIPD/Primary coverage on file, and operating authority is active for common.
Active filings
Safety Snapshot
8 roadside inspections over the last 24 months, down 11% versus the prior 24 months, most heavily in CA (8 stops), with Level 1 inspections the most common.
25.0% out-of-service rate; led by Vehicle Maintenance (63.2% of violations); top code 392.2 (Operating a CMV while ill or fatigued) cited 3 times.
The fleet comprises 2 power units (small fleet) and 2 drivers; Peterbilt, Wilx, and Wlsn are the most-inspected makes.
Compliance
Risk Signals
Out-of-Service rate vs same-size peers FMCSA roadside inspections, % placed out-of-service
Compared against 288,393 ACTIVE carriers operating 1–3 power units (±50% of this carrier's 2 unit fleet).
Authority gap detected (1)
- Common (Property) authority was inactive from May 6, 2024 to Jun 17, 2024 (42 days)
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) | 8 | 2 | 25.0% | Mar 19, 2026 |
Vehicle Fleet Top makes and models observed in roadside inspections
| Make | Model | Inspections |
|---|---|---|
| Peterbilt | 17 | |
| Wilson | 15 | |
| Wlsn | 2 |
SMS BASIC Scores FMCSA Safety Measurement System per-BASIC scores
SMS data not available
FMCSA's Safety Measurement System has not published per-BASIC scores for this carrier yet. This typically means the carrier doesn't meet minimum exposure thresholds (inspections/power units), or their SMS snapshot hasn't been ingested.
Recent Inspections (17 rows) View all 17 →
| Inspection # | Date ▼ | State | Level | Station | Vehicle | Violations | Top Codes | OOS |
|---|---|---|---|---|---|---|---|---|
| 87376138 | Mar 19, 2026 | CA | 1 | CARSON PLATFORM SCALES |
PTRB TRUCK TRACTOR
|
0 | — | No |
| 85524047 | Aug 14, 2025 | CA | 1 | ca-san-onofre--nb-if |
PTRB TRUCK TRACTOR
|
2 | 392.2-SLLSR | No |
| 85237248 | Jul 15, 2025 | CA | 1 | — |
PTRB STRAIGHT TRUCK
|
5 | 393.207A-SUBL, 393.75A3-TFL, 390.21TB1-MC | No |
| 82591003 | Sep 4, 2024 | CA | 1 | ca-conejo-if-n/b |
PTRB TRUCK TRACTOR
|
6 | 393.209(d), 393.53(b), 393.11 | Yes |
| 81833019 | Jun 6, 2024 | CA | 3 | RAINBOW IF |
PTRB TRUCK TRACTOR
|
3 | 383.23(a)(2), 392.2 | Yes |
| 81741694 | May 28, 2024 | CA | 2 | CONEJO IF |
PTRB TRUCK TRACTOR
|
2 | 393.43, 393.60(d) | No |
| 81690006 | May 21, 2024 | CA | 1 | ca-n/b-us-101-conejo-if |
PTRB TRUCK TRACTOR
|
0 | — | No |
| 81679633 | May 20, 2024 | CA | 1 | ca-conejo-if-s/b-scales |
PTRB TRUCK TRACTOR
|
1 | 392.2 | No |
| 80865432 | Feb 13, 2024 | CA | 1 | CARSON PLATFORM SCALES |
PTRB TRUCK TRACTOR
|
0 | — | No |
| 80661767 | Jan 19, 2024 | CA | 1 | ca-n/b-i-405-s/o-main-st |
PTRB TRUCK TRACTOR
|
0 | — | No |
| 80630467 | Jan 16, 2024 | CA | 1 | CARSON PLATFORM SCALES |
PTRB TRUCK TRACTOR
|
1 | 393.55(d)(3) | No |
| 80630563 | Jan 10, 2024 | CA | 1 | CARSON PLATFORM SCALES |
PTRB TRUCK TRACTOR
|
4 | 393.9(a), 392.2 | Yes |
| 80630463 | Jan 10, 2024 | CA | 1 | CARSON PLATFORM SCALES |
PTRB TRUCK TRACTOR
|
0 | — | No |
| 79602808 | Sep 6, 2023 | CA | 3 | MAZOURKA CANYON RD |
PTRB TRUCK TRACTOR
|
2 | 392.2 | Yes |
| 79299468 | Jul 22, 2023 | CA | 1 | ca-mt.-pass-jpoe-cvef |
PTRB TRUCK TRACTOR
|
1 | 395.8(k)(2) | Yes |
| 78989300 | Jun 24, 2023 | CA | 2 | RAINBOW IF |
PTRB TRUCK TRACTOR
|
1 | 396.7 | No |
| 78815501 | Jun 3, 2023 | CA | 3 | SAN BERNARDINO |
PTRB TRUCK TRACTOR
|
2 | 392.2, 393.60(d) | No |
Recent Crashes (1 row)
| Report # | Date ▼ | State | Fatalities | Injuries | Tow | Hazmat | Severity |
|---|---|---|---|---|---|---|---|
| CA5802502003 | Jul 2, 2025 | CA | 0 | 3 | Yes | Yes | Injury |
Authority Records (2 dockets)
Revocations & Inactive Status
Authority actions other than active status — revocations, voluntary surrenders, and dormant dockets.
| Date | Docket | Authority | Status | Applied |
|---|---|---|---|---|
| May 5, 2026 | MC1582224 | Common (Property) | REVOKED | — |
MC Certificate Documents (2 PDFs)
Operating-authority certificates and decision notices filed with FMCSA. Each PDF is the original 2-page daily record. Click a row to view or download.
| Date | Docket | Action | Authority | |
|---|---|---|---|---|
| Jun 17, 2024 | MC1582224-C | REI | REINSTATEMENT | View PDF → |
| Oct 6, 2023 | MC1582224-C | CPL | REVOCATION | View PDF → |
Insurance Coverage Timeline (2 rows)
Every insurance policy on file, newest effective date first. Amber rows mark BIPD/Primary coverage gaps.
| Insurer | Policy # | Type | Effective | Cancel | Status |
|---|---|---|---|---|---|
| TRAILBLAZERS INSURANCE COMPANY INC A RRG | STB02539 | BIPD/Primary | Apr 28, 2024 | Apr 28, 2025 | CANCELLED |
| TRAILBLAZERS INSURANCE COMPANY INC A RRG | STB01692 | BIPD/Primary | Sep 15, 2023 | Apr 28, 2024 | CANCELLED |
Compliance Timeline Merged authority / insurance / enforcement events
-
May 5, 2026
-
Apr 29, 2026insuranceCANCEL — NATIONAL TRANSPORTATION INSURANCE CO RRG, LLC
-
Apr 29, 2025
-
Apr 28, 2025insuranceCANCEL — TRAILBLAZERS INSURANCE COMPANY INC A RRG
-
May 6, 2024
-
May 6, 2024authorityAuthority revoked — INVOLUNTARY REVOCATION
-
May 6, 2024authority gapCommon (Property) authority inactive: 42 days (through Jun 17, 2024)
-
Apr 28, 2024insuranceCANCEL — TRAILBLAZERS INSURANCE COMPANY INC A RRG
Top Stations & Violation Codes Where this carrier gets inspected and what they get cited for
Most-Inspected Stations
| Station | State | Inspections | OOS |
|---|---|---|---|
| CARSON PLATFORM SCALES | CA | 5 | 1 |
| RAINBOW IF | CA | 2 | 1 |
| CONEJO IF | CA | 1 | 0 |
| MAZOURKA CANYON RD | CA | 1 | 1 |
| SAN BERNARDINO | CA | 1 | 0 |
Top Violation Codes Cited
| Code | Description | Category | Cited | OOS |
|---|---|---|---|---|
| 392.2 | Operating a CMV while ill or fatigued | Unsafe Driving | 8 | 1 |
| 393.60(d) | Glazing/window obstructions | Vehicle Maintenance | 2 | 0 |
| 393.9(a) | Inoperable required lamps | Vehicle Maintenance | 2 | 1 |
| 383.23(a)(2) | CDL - wrong class | Driver Fitness | 1 | 1 |
| 393.11 | Lighting devices/reflectors | Vehicle Maintenance | 1 | 0 |
| 393.209(d) | Wheel fasteners loose/missing | Vehicle Maintenance | 1 | 1 |
| 393.43 | Brake - relay emergency valve | Vehicle Maintenance | 1 | 0 |
| 393.47(d) | Brake actuators/chambers defective | Vehicle Maintenance | 1 | 0 |
| 393.47(e) | Slack adjuster defective | Vehicle Maintenance | 1 | 0 |
| 393.53(b) | Steering system components worn | Vehicle Maintenance | 1 | 0 |
Related Records Cross-references to every adjacent page
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California carriers
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Los Angeles carriers
Carriers based in Los Angeles, CA
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Stations in California
Where this carrier might be inspected
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Docket MC1582224
Common (Property) · REVOKED · MC
-
TRAILBLAZERS INSURANCE COMPANY INC A RRG
BIPD/Primary policy on file
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#1 A BOC-3 FILING INC
BOC-3 process agent · 108,819 carriers served
-
17 inspections
Full roadside inspection history
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1 reportable crash
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
Look up any FMCSA authority by MC/MX/FF docket number
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All state carrier directories
Browse carriers in every US/CA/MX jurisdiction
How to verify DIMAS & SONS TRANSPORT INC
- 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 DIMAS & SONS TRANSPORT INC
Is DIMAS & SONS TRANSPORT INC an active motor carrier? ▾
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Does DIMAS & SONS TRANSPORT INC have valid operating authority? ▾
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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.