HaulerCheck · https://haulercheck.com/carrier/3858403-rock-transportation/ · Checked 2026-10-19 12:23 UTC · Census and inspections Oct 18, 2026 · Authority and insurance: FMCSA Motus · Oct 18, 2026
ROCK TRANSPORTATION
Do not book until these are resolved · 2 signals
How risk signals workAt least one fact in the FMCSA record should stop a booking until it is cleared up. Confirm the current record on Motus first; it is not a finding of wrongdoing.
- Operating authority is inactiveWithout active authority the company may not haul or broker interstate freight for hire.
- Vehicle out-of-service rate well above the state average47.1% vs California average 19.8%.
No cargo cover filed with FMCSA
What to verify next
- Confirm authority and insurance on the official Motus record ↗. Safety record: SAFER ↗.
- Call back on the number on file, (818) 415-6804, not a number from an email or load board.
- Check that the MC number you were given is MC1808897.
- Ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Insurance on file
No insurance filings were found in the public FMCSA data for this carrier.
Roadside inspections Oct 18, 2024 – Oct 18, 2026
8 of 17 · California avg 19.8%
2 of 20 · California avg 6.3%
10 most recent inspections
| Date | State | Level | Violations | Out of service |
|---|---|---|---|---|
| Aug 14, 2026 | CA | 1 | 3 | Yes |
| Aug 11, 2026 | CA | 1 | 6 | Yes |
| Jun 4, 2026 | CA | 2 | 3 | Yes |
| May 28, 2026 | CA | 2 | 1 | No |
| May 27, 2026 | CA | 1 | 6 | Yes |
| Mar 17, 2026 | CA | 3 | 0 | No |
| Jan 21, 2026 | CA | 1 | 4 | No |
| Dec 22, 2025 | CA | 3 | 2 | No |
| Dec 17, 2025 | CA | 2 | 2 | No |
| Dec 16, 2025 | CA | 2 | 5 | Yes |
How these rates are calculated
Period: Oct 18, 2024 – Oct 18, 2026. Vehicle rate = vehicle inspections with a vehicle out-of-service order ÷ vehicle inspections (levels 1, 2, 5 and 6). Driver rate uses levels 1, 2, 3 and 6. The California average covers 398,428 vehicle and 509,934 driver inspections of all California-based carriers in this period. It mixes every type of operation, so compare with care; rates based on a handful of inspections say little. FMCSA's own SMS measures are weighted differently: SMS profile ↗ · SAFER snapshot ↗
Violations in FMCSA's SMS last 24 months
27 violations counted in FMCSA's Safety Measurement System (SMS), 11 of them serious enough to put the driver or vehicle out of service.
Why is this different from the 78 violations above?
The inspections section's number counts every violation written on the inspection reports in our Oct 18, 2024 – Oct 18, 2026 window. The SMS count comes from FMCSA's own monthly SMS snapshot, which uses its own 24-month window and only the violations it scores. Both are FMCSA figures; they measure different things.
| Category (FMCSA BASIC) | Violations | Out of service | Share | California share |
|---|---|---|---|---|
| Vehicle Maintenance | 24 | 9 | 88.9% | 71.7% |
| Hours-of-Service Compliance | 2 | 2 | 7.4% | 16.6% |
| Unsafe Driving | 1 | 0 | 3.7% | 8.0% |
10 most frequent violations
| Violation | Times | Out of service |
|---|---|---|
| Lighting - Backup lamp inoperative Lighting · Vehicle Maintenance · code 3939ALBL | 3 | 0 |
| Lighting - Headlamp(s) - Any inoperative Lighting · Vehicle Maintenance · code 3939ALHLI | 2 | 0 |
| Battery - Not protected Other Vehicle Defect · Vehicle Maintenance · code 39330B | 2 | 0 |
| Cargo - Damaged securement devices/tiedowns Securement Device · Vehicle Maintenance · code 393104BC | 2 | 0 |
| HOS (Property) - Failing to have a record of duty status using the method prescribed Incomplete/Wrong Log · Hours-of-Service Compliance · code 3958A1HOSP | 1 | 1 |
| HOS (Property) - Failing to have in possession RODS for the previous seven consecutive days and available for inspection while on duty Incomplete/Wrong Log · Hours-of-Service Compliance · code 3958K2HOSP | 1 | 1 |
| Cargo - Vehicle components or dunnage not secured General Securement · Vehicle Maintenance · code 3929A2C | 1 | 1 |
| Cargo - Cargo not secured to prevent leaking/spilling/blowing/falling from CMV Improper Load Securement · Vehicle Maintenance · code 393100BC | 1 | 1 |
| Lighting - Turn signal - Any inoperative on the rearmost vehicle. Lighting · Vehicle Maintenance · code 3939ALTSI | 1 | 1 |
| Suspension - Axle positioning part cracked/broken/loose/missing resulting in axle shift Suspension · Vehicle Maintenance · code 393207ASAPPAS | 1 | 1 |
Source: FMCSA SMS violation file, inspections in the last 24 months, published Oct 18, 2026. "Share" is this company's mix of violations; the California column is the mix across all California-based carriers, so you can see which kinds of problems stand out. A high count partly reflects fleet size and how often trucks are inspected.
Crashes Oct 18, 2024 – Oct 18, 2026
No reportable crashes in this period.
Company details FMCSA census · Oct 18, 2026
| USDOT number | 3858403 |
|---|---|
| MC / docket | MC1808897 |
| Legal name | ROCK TRANSPORTATION |
| Operation | Intrastate (Non-Hazmat) |
| Business type | — |
| Power units | 3 |
| Drivers | 3 |
| Annual mileage | 49,000 (2025) |
| Hazmat | No |
| Safety rating | Not rated (no compliance review on record) |
| USDOT number added | Apr 6, 2022 · 4 years ago |
| Last MCS-150 update | Mar 20, 2026 |
Cargo carried
General FreightBuilding MaterialsConstruction
Questions about ROCK TRANSPORTATION
What does ROCK TRANSPORTATION's operating authority allow?
FMCSA records show no active operating authority for ROCK TRANSPORTATION (MC1808897), so it may not haul regulated interstate freight for hire or broker loads under these dockets.
Which information about ROCK TRANSPORTATION is old or missing?
No insurance filings were found in the public data. FMCSA has not issued a safety rating, which means no compliance review is on record, not that the carrier is unsafe.
What should I verify before booking ROCK TRANSPORTATION?
Confirm the authority and insurance on the Motus record for USDOT 3858403. Call the company back on the phone number on file, (818) 415-6804, not a number from an email or load board message. Check that the MC number the dispatcher gave you matches MC1808897, and ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Other trucking companies in Sylmar, CA →
Company details from the FMCSA Company Census File (Oct 18, 2026). Inspections and crashes from FMCSA MCMIS files. About our data · Report an error on this page (how corrections work).
Page generated 2026-10-19 12:23 UTC.