UNIMARK LOWBOY TRANSPORTATION LLC
Book with caution — review signals below
No hard OOS / revoked / uninsured blocker, but elevated risk signals need a human look before booking.
- 3 fatalities on crash record 90 FMCSA-reportable crashes on file. Details →
Plain-text risk summary (print / paste)
TruckCodex risk summary — UNIMARK LOWBOY TRANSPORTATION LLC (USDOT 1604546) 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: • 3 fatalities on crash record — 90 FMCSA-reportable crashes on file. On file: • 1 active operating authority • Active insurance on file — LIBERTY MUTUAL INSURANCE CO. · 82 • BOC-3 process agent on file — CENTRAL AGENT SERVICE, INC. • OOS rate better than size peers Source: https://truckcodex.com/usdot/1604546/ As of: Jul 18, 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 93/100). Expand for per-signal evidence. Heuristic — not an FMCSA rating or legal advice.
A
confidence 80% · 4/5 signals
Compliance grade A
Composite of 4/5 scored components (mean 93/100). 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.
Active insurance rows exist, but BIPD/Primary match is unclear — verify on L&I.
Driver OOS 0.9% vs peer median 1.5% (better). Vehicle OOS 16% vs peer median 17.8% (better). n=5984 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 +24 (130 → 154) · Jun 27, 2026 · FMCSA Company Census
- Drivers +33 (130 → 163) · Jun 27, 2026 · FMCSA Company Census
Company profile
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InsuranceLIBERTY MUTUAL INSURANCE CO.Policy effective Dec 19, 2023
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Process AgentCENTRAL AGENT SERVICE, INC.BOC-3 on file
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Operating AuthorityMC593409ACTIVE
Fleet details (MCS-150)
| Vehicle type | Owned | Term leased | Trip leased |
|---|---|---|---|
| Truck tractors | 5 | 72 | 0 |
| Trailers | 118 | 37 | 0 |
Self-reported on the carrier’s Form MCS-150 (FMCSA Company Census).
Accident reports (24 months)
All 90 crashes →| Last 6 months | 6–12 months | 12–24 months | Total | |
|---|---|---|---|---|
| Fatalities | 0 | 1 | 2 | 3 |
| Injuries | 0 | 1 | 10 | 11 |
| Tow-away | 2 | 4 | 10 | 16 |
| Crash reports | 2 | 4 | 10 | 16 |
Reportable crashes from FMCSA MCMIS for the trailing 24 months. Counts may differ slightly from SAFER due to reporting lag.
Inspections (24 months)
All 202 inspections →| Driver | Vehicle | Hazmat | |
|---|---|---|---|
| Inspections | 104 | 104 | 0 |
| OOS inspections | 0 | 10 | 0 |
| OOS percentage | 0% | 9.62% | — |
| 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
UNIMARK LOWBOY TRANSPORTATION LLC is a motor carrier based in PLEASANT PRAIRIE, WI, registered with the FMCSA under USDOT 1604546. 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 154 power units and 163 drivers, with 202 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.
UNIMARK LOWBOY TRANSPORTATION LLC is a large fleet, operating 130 power units and 130 drivers, based in Pleasant Prairie, WI. Across 113 roadside inspections in the last 24 months, the fleet recorded an 8.0% out-of-service rate, with 18 reportable crashes. Operating authority is active for contract and common.
113 roadside inspections over the last 24 months, up 40% versus the prior 24 months, concentrated in OH (16) and US (12), with Level 3 inspections the most common.
8.0% out-of-service rate; led by Unsafe Driving (42.0% of violations); top code 392.2 (Operating a CMV while ill or fatigued) cited 11 times.
The fleet comprises 130 power units (large fleet) and 130 drivers; Freightliner, Peterbilt, and Unknown are the most-inspected makes.
Risk Signals
Out-of-Service rate vs same-size peers FMCSA roadside inspections, % placed out-of-service
Compared against 5,984 ACTIVE carriers operating 77–231 power units (±50% of this carrier's 154 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 130 163FMCSA Company Census
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Power Units 130 154FMCSA 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 |
|---|---|---|---|---|
| US (US) | 13 | 0 | 0.0% | May 30, 2026 |
| Ohio (OH) | 12 | 2 | 16.7% | Mar 30, 2026 |
| Tennessee (TN) | 10 | 4 | 40.0% | Apr 14, 2026 |
| California (CA) | 7 | 0 | 0.0% | May 22, 2026 |
| Texas (TX) | 7 | 0 | 0.0% | Jun 17, 2025 |
| Georgia (GA) | 5 | 0 | 0.0% | Jul 12, 2025 |
| West Virginia (WV) | 4 | 0 | 0.0% | Oct 20, 2024 |
| Indiana (IN) | 4 | 0 | 0.0% | Mar 12, 2025 |
| Kentucky (KY) | 4 | 3 | 75.0% | May 20, 2026 |
| Michigan (MI) | 4 | 0 | 0.0% | May 15, 2026 |
| North Carolina (NC) | 4 | 0 | 0.0% | Jan 13, 2026 |
| New Mexico (NM) | 4 | 0 | 0.0% | Feb 17, 2026 |
| Pennsylvania (PA) | 3 | 0 | 0.0% | May 25, 2025 |
| Alabama (AL) | 2 | 0 | 0.0% | Oct 8, 2025 |
| Mississippi (MS) | 2 | 0 | 0.0% | Oct 9, 2025 |
| South Carolina (SC) | 2 | 0 | 0.0% | Jul 8, 2026 |
| South Dakota (SD) | 2 | 1 | 50.0% | Jun 12, 2025 |
| Florida (FL) | 2 | 0 | 0.0% | May 7, 2026 |
| Vermont (VT) | 2 | 0 | 0.0% | Oct 22, 2024 |
| Montana (MT) | 2 | 0 | 0.0% | Sep 18, 2025 |
| Arkansas (AR) | 1 | 0 | 0.0% | Jan 8, 2026 |
| Kansas (KS) | 1 | 0 | 0.0% | May 5, 2026 |
| Virginia (VA) | 1 | 0 | 0.0% | Mar 30, 2026 |
| Connecticut (CT) | 1 | 0 | 0.0% | Jan 5, 2026 |
| New York (NY) | 1 | 0 | 0.0% | Feb 12, 2025 |
| Illinois (IL) | 1 | 0 | 0.0% | Mar 6, 2025 |
| Oklahoma (OK) | 1 | 0 | 0.0% | Sep 10, 2024 |
| Oregon (OR) | 1 | 0 | 0.0% | Oct 1, 2024 |
| Washington (WA) | 1 | 0 | 0.0% | Apr 11, 2025 |
Vehicle Fleet Top makes and models observed in roadside inspections
| Make | Model | Inspections |
|---|---|---|
| Peterbilt | 59 | |
| Freightliner | 58 | |
| Unknown | 34 | |
| International | 23 | |
| Kenworth | 19 | |
| Trailer | 17 |
SMS BASIC Scores FMCSA Safety Measurement System per-BASIC scores
| BASIC | Inspections | Serious | Measure | Percentile | Alert | As Of |
|---|---|---|---|---|---|---|
| Driver Fitness | 1 | — | 0.04 | 0 | — | Jul 13, 2026 |
| Controlled Substances / Alcohol | 0 | — | 0.00 | 0 | — | Jul 13, 2026 |
| Hours of Service | 7 | — | 0.22 | 0 | — | Jul 13, 2026 |
| Unsafe Driving | 16 | — | 1.28 | 1 | — | Jul 13, 2026 |
| Vehicle Maintenance | 17 | — | 3.15 | 3 | — | 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 (202 rows) View all 202 →
| Inspection # | Date ▼ | State | Level | Station | Vehicle | Violations | Top Codes | OOS |
|---|---|---|---|---|---|---|---|---|
| 88344149 | Jul 8, 2026 | SC | 3 | — |
PETERBILT TRUCK TRACTOR
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1 | 392.2-SLLTL | No |
| 88006177 | May 30, 2026 | US | 2 | — |
FREIGHTLINER TRUCK TRACTOR
Ticket: Navistar
|
0 | — | No |
| 87934726 | May 22, 2026 | CA | 2 | — |
FREIGHTLINER STRAIGHT TRUCK
|
0 | — | No |
| 87914115 | May 20, 2026 | KY | 2 | — |
VOLVO TRUCK TRUCK TRACTOR
|
1 | 393.75A3-TAOL | Yes |
| 87873753 | May 15, 2026 | MI | 3 | — |
VOLVO TRUCK TRUCK TRACTOR
|
0 | — | No |
| 87798068 | May 7, 2026 | FL | 3 | — |
KENWORTH TRUCK TRACTOR
|
0 | — | No |
| 87780794 | May 5, 2026 | KS | 2 | — |
FREIGHTLINER STRAIGHT TRUCK
|
3 | 393.9A-LCL, 393.9A-LRLI, 393.9A-LIL | No |
| 87700526 | Apr 28, 2026 | KY | 1 | VERONA |
INTERNATIONAL TRUCK TRACTOR
|
1 | 75A3-TAOL | Yes |
| 87591110 | Apr 14, 2026 | TN | 2 | STANTON TN |
PETERBILT TRUCK TRACTOR
|
1 | 75A3-TAOL | Yes |
| 87579101 | Apr 13, 2026 | FL | 3 | — |
FREIGHTLINER TRUCK TRACTOR
|
0 | — | No |
| 87457428 | Mar 30, 2026 | VA | 2 | DRAPER VA |
KENWORTH TRUCK TRACTOR
|
4 | 393.11A1-LRR, 392.2-SLLTCD, 393.11A1-CSURR | No |
| 87454959 | Mar 30, 2026 | OH | 2 | HUBBARD OH |
PETERBILT TRUCK TRACTOR
|
0 | — | No |
| 87260523 | Mar 11, 2026 | US | 3 | CALEXICO CA |
WESTERN STAR STRAIGHT TRUCK
|
0 | — | No |
| 87260408 | Mar 10, 2026 | US | 1 | CALEXICO CA |
FREIGHTLINER TRUCK TRACTOR
|
0 | — | No |
| 87306833 | Feb 26, 2026 | US | 3 | CALEXICO CA |
FREIGHTLINER STRAIGHT TRUCK
|
0 | — | No |
| 87077579 | Feb 17, 2026 | NM | 3 | ANTHONY PORT OF ENTRY |
INTERNATIONAL TRUCK TRACTOR
|
0 | — | No |
| 87077578 | Feb 17, 2026 | NM | 3 | ANTHONY PORT OF ENTRY |
INTERNATIONAL TRUCK TRACTOR
|
0 | — | No |
| 86857693 | Jan 20, 2026 | OH | 3 | ELYRIA OH |
PETERBILT TRUCK TRACTOR
|
1 | 392.2-SLLSOA | No |
| 86790771 | Jan 13, 2026 | NC | 2 | nc-statesville-weigh-station,-i-4 |
PETERBILT TRUCK TRACTOR
|
1 | 392.2RG | No |
| 86756597 | Jan 8, 2026 | US | 2 | CALEXICO CA |
KENWORTH TRUCK TRACTOR
|
0 | — | No |
| 86747809 | Jan 8, 2026 | AR | 3 | MARION AR |
FREIGHTLINER TRUCK TRACTOR
|
0 | — | No |
| 86703025 | Jan 5, 2026 | CT | 2 | MIDDLETOWN SCALE |
PETERBILT TRUCK TRACTOR
|
1 | 392.2-SLLEWG1 | No |
| 86675111 | Dec 16, 2025 | US | 3 | CALEXICO CA |
INTERNATIONAL TRUCK TRACTOR
|
0 | — | No |
| 86457311 | Dec 1, 2025 | US | 2 | LAREDO TX |
FREIGHTLINER TRUCK TRACTOR
|
1 | 391.11B2-Z | No |
| 86388567 | Nov 20, 2025 | CA | 3 | RANCHO CUCAMONGA |
FREIGHTLINER TRUCK TRACTOR
|
2 | 392.2-SLLS4, 392.2-SLLLR | No |
Recent Crashes (90 rows) View all 90 →
| Report # | Date ▼ | State | Fatalities | Injuries | Tow | Hazmat | Severity |
|---|---|---|---|---|---|---|---|
| OH0263060344 | Mar 31, 2026 | OH | Yes | No | Tow | ||
| TX7D5AHQE1JA | Feb 3, 2026 | TX | 0 | 0 | Yes | No | Tow |
| TX7B7AHQE1GQ | Dec 1, 2025 | TX | 0 | 0 | Yes | No | Tow |
| OH0252180671 | Sep 4, 2025 | OH | 0 | 0 | Yes | No | Tow |
| MI0003586598 | Aug 29, 2025 | MI | 0 | 0 | Yes | No | Tow |
| OH0255164496 | Aug 24, 2025 | OH | 1 | 1 | Yes | No | Fatal |
| TN0400288405 | Jul 14, 2025 | TN | 2 | 4 | Yes | No | Fatal |
| GA0009971448 | Jul 12, 2025 | GA | 0 | 2 | Yes | No | Injury |
| MI0003498648 | May 14, 2025 | MI | 0 | 0 | Yes | No | Tow |
| NC0108064728 | Mar 13, 2025 | NC | 0 | 0 | Yes | No | Tow |
| OH0255011431 | Jan 20, 2025 | OH | 0 | 0 | Yes | No | Tow |
| WV202427836A | Dec 3, 2024 | WV | 0 | 1 | Yes | No | Injury |
| OH0245201787 | Nov 1, 2024 | OH | 0 | 2 | Yes | No | Injury |
| OH0245168560 | Sep 19, 2024 | OH | 0 | 0 | Yes | No | Tow |
| WI0000123565 | Sep 10, 2024 | WI | 0 | 0 | Yes | No | Tow |
| CA8602402162 | Jul 24, 2024 | CA | 0 | 1 | Yes | No | Injury |
| PA404296100X | May 11, 2024 | PA | 0 | 0 | Yes | No | Tow |
| ILX003398758 | Apr 30, 2024 | IL | 0 | 0 | Yes | No | Tow |
| GA0009275754 | Dec 18, 2023 | GA | 0 | 2 | Yes | No | Injury |
| FL8968264503 | Dec 10, 2023 | FL | 0 | 2 | Yes | No | Injury |
| NC0107549071 | Nov 24, 2023 | NC | 0 | 0 | Yes | No | Tow |
| GA0009126245 | Aug 25, 2023 | GA | 0 | 0 | Yes | No | Tow |
| VA0231505283 | May 11, 2023 | VA | 0 | 0 | Yes | No | Tow |
| VA0231235348 | Apr 30, 2023 | VA | 0 | 3 | Yes | No | Injury |
| NC0107301563 | Apr 12, 2023 | NC | 0 | 0 | Yes | No | Tow |
Authority Records (1 docket)
MC Certificate Documents (3 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 | |
|---|---|---|---|---|
| May 5, 2010 | MC593409 | NC | REVOCATION | NC → |
| Mar 19, 2007 | MC593409-C | CPL | REVOCATION | CPL → |
| Mar 8, 2007 | MC593409-P | CPL | REVOCATION | CPL → |
Insurance Coverage Timeline (13 rows)
Every insurance policy on file, newest effective date first. Amber rows mark BIPD/Primary coverage gaps.
| Insurer | Policy # | Type | Limit | Effective | Cancel | Status |
|---|---|---|---|---|---|---|
| LIBERTY MUTUAL INSURANCE CO. | 016242671 | 82 | — | Dec 19, 2023 | On file | ACTIVE |
| ACE AMERICAN INSURANCE COMPANY | ISA H25297660 | BIPD/Primary | — | Apr 1, 2020 | Dec 19, 2023 | REPLACED |
| GREENWICH INSURANCE COMPANY | RAD9437771 | BIPD/Primary | — | Apr 1, 2016 | Apr 1, 2020 | REPLACED |
| THE INSURANCE CO OF THE STATE OF PENNSYLVANIA | 0949-129 | BIPD/Primary | — | Apr 1, 2011 | Apr 1, 2016 | REPLACED |
| RSUI INDEMNITY COMPANY | NHQ364595 | CARGO | — | Nov 1, 2009 | Dec 28, 2023 | CANCELLED |
| THE INSURANCE CO OF THE STATE OF PENNSYLVANIA | CA 094-91-29 | BIPD/Primary | — | Apr 1, 2009 | Apr 1, 2009 | REPLACED |
| THE INSURANCE CO OF THE STATE OF PENNSYLVANIA | CA 094-91-29 | BIPD/Primary | — | Apr 1, 2009 | Jun 7, 2010 | NAME CHANGED |
| THE INSURANCE CO OF THE STATE OF PENNSYLVANIA | CA 094-91-29 | BIPD/Primary | — | Apr 1, 2009 | Apr 1, 2011 | REPLACED |
| ACE AMERICAN INSURANCE COMPANY | LMT H08246427 | BIPD/Primary | — | Oct 1, 2008 | Apr 1, 2009 | REPLACED |
| RSUI INDEMNITY COMPANY | NHQ355116 | CARGO | — | Nov 1, 2007 | Nov 1, 2009 | REPLACED |
| RSUI INDEMNITY COMPANY | NHQ355116 | CARGO | — | Nov 1, 2007 | Jun 7, 2010 | NAME CHANGED |
| LEXINGTON INSURANCE COMPANY | 8755555 | CARGO | — | Nov 1, 2006 | Nov 1, 2007 | CANCELLED |
| LIBERTY MUTUAL FIRE INSURANCE CO. | AI2-741-435290-01 | BIPD/Primary | — | Oct 1, 2006 | Oct 1, 2008 | CANCELLED |
Compliance Timeline Merged authority / insurance / enforcement events
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Dec 28, 2023insuranceCANCEL — RSUI INDEMNITY COMPANY
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Dec 19, 2023insuranceTERM/REPL — ACE AMERICAN INSURANCE COMPANY
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Apr 1, 2020insuranceTERM/REPL — GREENWICH INSURANCE COMPANY
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Apr 1, 2016insuranceTERM/REPL — THE INSURANCE CO OF THE STATE OF PENNSYLVANIA
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Apr 1, 2011insuranceTERM/REPL — THE INSURANCE CO OF THE STATE OF PENNSYLVANIA
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Jun 7, 2010insuranceTERM/CANCL — RSUI INDEMNITY COMPANY
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Jun 7, 2010insuranceTERM/CANCL — THE INSURANCE CO OF THE STATE OF PENNSYLVANIA
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May 12, 2010
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Nov 1, 2009insuranceTERM/REPL — RSUI INDEMNITY COMPANY
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Apr 1, 2009insuranceTERM/REPL — ACE AMERICAN INSURANCE COMPANY
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Apr 1, 2009insuranceTERM/REPL — THE INSURANCE CO OF THE STATE OF PENNSYLVANIA
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Oct 3, 2008
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Oct 1, 2008insuranceCANCEL — LIBERTY MUTUAL FIRE INSURANCE CO.
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Nov 2, 2007
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Nov 1, 2007insuranceCANCEL — LEXINGTON INSURANCE COMPANY
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Mar 19, 2007
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Mar 8, 2007
Top Stations & Violation Codes Where this carrier gets inspected and what they get cited for
Most-Inspected Stations
| Station | State | Inspections | OOS |
|---|---|---|---|
| CALEXICO IF | CA | 13 | 0 |
| CALEXICO CA | US | 11 | 0 |
| ROADSIDE | OH | 9 | 2 |
| LONDON | KY | 4 | 2 |
| DESERT HILLS IF | CA | 3 | 0 |
| CHOWCHILLA RIVER IF | CA | 2 | 0 |
| PERRY GA | GA | 2 | 0 |
| ANGOLA IN | IN | 2 | 0 |
| ANTHONY PORT OF ENTRY | NM | 2 | 0 |
| I-85 NB ROADSIDE | SC | 2 | 0 |
Top Violation Codes Cited
| Code | Description | Category | Cited | OOS |
|---|---|---|---|---|
| 392.2 | Violation of Local Laws - Explain: | Unsafe Driving | 34 | 0 |
| 393.9(a) | Inoperable required lamps | Vehicle Maintenance | 17 | 4 |
| 393.75(a) | Flat tire or fabric exposed | Vehicle Maintenance | 6 | 6 |
| 393.11 | No or defective lighting devices or reflective material as required | Vehicle Maintenance | 5 | 0 |
| 396.3(a)(1) | Inspection, repair and maintenance of parts and accessories | Vehicle Maintenance | 4 | 1 |
| 392.16(a) | Failing to use seat belt (49 CFR) | Unsafe Driving | 3 | 0 |
| 393.45(d) | Brake connections with leaks or constrictions | Vehicle Maintenance | 3 | 0 |
| 393.75(a)(3) | Tire-flat and/or audible air leak | Vehicle Maintenance | 3 | 3 |
| 395.22(g) | Portable ELD not mounted in a fixed position and visible to driver | Hours of Service | 3 | 0 |
| 393.104(f)(3) | Loose or unfastened tiedown. | Vehicle Maintenance | 2 | 1 |
Related Records Cross-references to every adjacent page
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Wisconsin carriers
All carriers based in Wisconsin
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Pleasant Prairie carriers
Carriers based in Pleasant Prairie, WI
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Stations in Wisconsin
Where this carrier might be inspected
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Docket MC593409
common · ACTIVE · MC
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LIBERTY MUTUAL INSURANCE CO.
82 policy on file
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ACE AMERICAN INSURANCE COMPANY
BIPD/Primary policy on file
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GREENWICH INSURANCE COMPANY
BIPD/Primary policy on file
-
THE INSURANCE CO OF THE STATE OF PENNSYLVANIA
BIPD/Primary policy on file
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RSUI INDEMNITY COMPANY
CARGO policy on file
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LEXINGTON INSURANCE COMPANY
CARGO policy on file
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LIBERTY MUTUAL FIRE INSURANCE CO.
BIPD/Primary policy on file
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CENTRAL AGENT SERVICE, INC.
BOC-3 process agent · 1,320 carriers served
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202 inspections
Full roadside inspection history
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90 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
Look up any FMCSA authority by MC/MX/FF docket number
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Insurance-lapse watch
Carriers with recent BMC-91 cancellation or reinstatement churn
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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 UNIMARK LOWBOY TRANSPORTATION LLC
- 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 UNIMARK LOWBOY TRANSPORTATION LLC
Is UNIMARK LOWBOY TRANSPORTATION LLC an active motor carrier? ▾
What is UNIMARK LOWBOY TRANSPORTATION LLC's safety rating? ▾
How many inspections has UNIMARK LOWBOY TRANSPORTATION LLC had? ▾
What is UNIMARK LOWBOY TRANSPORTATION LLC's out-of-service rate? ▾
Where is UNIMARK LOWBOY TRANSPORTATION LLC based? ▾
Does UNIMARK LOWBOY TRANSPORTATION LLC have valid operating authority? ▾
How many trucks and drivers does UNIMARK LOWBOY TRANSPORTATION LLC operate? ▾
Has UNIMARK LOWBOY TRANSPORTATION LLC 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.