KNOLL BROTHERS ENTERPRISES LLC
DBA: RHINEHART EXCAVATING
No hard blockers on file
Authority and insurance signals look clear in our data. Still verify live on FMCSA SAFER / L&I before tendering a load.
- OOS rate better than size peers
Plain-text risk summary (print / paste)
TruckCodex risk summary — KNOLL BROTHERS ENTERPRISES LLC (USDOT 3651099) Verdict: CLEAR TO REVIEW No hard blockers on file Authority and insurance signals look clear in our data. Still verify live on FMCSA SAFER / L&I before tendering a load. Authority / census status: Active Officer(s): DAN KNOLL (Company officer) Blockers: (none) Cautions: (none) On file: • OOS rate better than size peers Source: https://truckcodex.com/usdot/3651099/ As of: Jul 19, 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 3/5 scored components (mean 100/100). Expand for per-signal evidence. Heuristic — not an FMCSA rating or legal advice.
A
confidence 60% · 3/5 signals
Compliance grade A
Composite of 3/5 scored components (mean 100/100). 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 0% vs peer median 0% (neutral). Vehicle OOS 0% vs peer median 12.5% (better). n=65095 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: Clear to review.
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 | 2 | 0 | 0 |
| Trailers | 8 | 0 | 0 |
| Trucks | 12 | 0 | 0 |
Self-reported on the carrier’s Form MCS-150 (FMCSA Company Census).
Inspections (24 months)
All 16 inspections →| Driver | Vehicle | Hazmat | |
|---|---|---|---|
| Inspections | 11 | 11 | 0 |
| OOS inspections | 0 | 1 | 0 |
| OOS percentage | 0% | 9.09% | — |
| 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
KNOLL BROTHERS ENTERPRISES LLC is a motor carrier based in DALLAS CENTER, IA, registered with the FMCSA under USDOT 3651099. 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 14 power units and 12 drivers, with 16 roadside inspections on file. 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.
KNOLL BROTHERS ENTERPRISES LLC is a mid-sized fleet, operating 14 power units and 12 drivers, based in Dallas Center, IA. Across 10 roadside inspections in the last 24 months, the fleet recorded a 20.0% out-of-service rate, with no reportable crashes on file. no operating authority record was located.
10 roadside inspections over the last 24 months, up 233% versus the prior 24 months, most heavily in IA (10 stops), with Level 3 inspections the most common.
20.0% out-of-service rate; led by Unsafe Driving (81.8% of violations); top code 392.2-SLLS2 (Speeding 6-10 mph over limit) cited 4 times.
The fleet comprises 14 power units (mid-sized fleet) and 12 drivers; Mack, Kenworth, and Brady are the most-inspected makes.
Out-of-Service rate vs same-size peers FMCSA roadside inspections, % placed out-of-service
Compared against 65,095 ACTIVE carriers operating 7–21 power units (±50% of this carrier's 14 unit fleet).
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 |
|---|---|---|---|---|
| Iowa (IA) | 11 | 1 | 9.1% | Jul 8, 2026 |
Vehicle Fleet Top makes and models observed in roadside inspections
| Make | Model | Inspections |
|---|---|---|
| Mack | 12 | |
| Kenworth | 3 | |
| Cusm | 2 | |
| Brady | 1 | |
| Etnyre | 1 |
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 13, 2026 |
| Controlled Substances / Alcohol | 0 | — | 0.00 | 0 | — | Jul 13, 2026 |
| Hours of Service | 0 | — | 0.00 | 0 | — | Jul 13, 2026 |
| Unsafe Driving | 4 | — | 1.39 | 1 | — | Jul 13, 2026 |
| Vehicle Maintenance | 2 | — | 10.00 | 10 | — | 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 (16 rows) View all 16 →
| Inspection # | Date ▼ | State | Level | Station | Vehicle | Violations | Top Codes | OOS |
|---|---|---|---|---|---|---|---|---|
| 88346550 | Jul 8, 2026 | IA | 3 | — |
MACK STRAIGHT TRUCK
|
1 | 392.16-D | No |
| 88257598 | Jun 26, 2026 | IA | 3 | — |
MACK TRUCK TRACTOR
|
0 | — | No |
| 87739273 | Apr 30, 2026 | IA | 3 | — |
MACK STRAIGHT TRUCK
|
1 | 2-SLLS1 | No |
| 86244596 | Nov 4, 2025 | IA | 3 | HIGHWAY 69 NB |
MACK STRAIGHT TRUCK
|
1 | 392.2-SLLS2 | No |
| 85907321 | Sep 26, 2025 | IA | 3 | — |
MACK STRAIGHT TRUCK
|
1 | 392.2-SLLS1 | No |
| 85633391 | Aug 25, 2025 | IA | 3 | ia-02---i80-eb-mm-115-van-meter |
KENWORTH TRUCK TRACTOR
|
1 | 392.2-SLLEWA1 | No |
| 85867396 | Aug 19, 2025 | IA | 3 | — |
MACK STRAIGHT TRUCK
|
1 | 392.2-SLLS2 | No |
| 83707390 | Jan 24, 2025 | IA | 3 | — |
KENWORTH STRAIGHT TRUCK
|
1 | 392.2-SLLS2 | No |
| 83298660 | Dec 2, 2024 | IA | 3 | ia-hwy-169-sb/310th-st |
MACK STRAIGHT TRUCK
|
1 | 392.2-SLLS2 | No |
| 82734028 | Sep 20, 2024 | IA | 3 | ia-02---i80-eb-mm-115-van-meter |
MACK STRAIGHT TRUCK
|
1 | 392.2 | No |
| 82405577 | Aug 13, 2024 | IA | 2 | ia-02---i80-eb-mm-115-van-meter |
MACK STRAIGHT TRUCK
|
2 | 393.75(a)(3), 392.2 | Yes |
| 82022176 | Jul 1, 2024 | IA | 2 | ia-02---i80-eb-mm-115-van-meter |
MACK STRAIGHT TRUCK
|
1 | 393.75(a)(3) | Yes |
| 81770485 | May 31, 2024 | IA | 3 | — |
MACK STRAIGHT TRUCK
|
1 | 392.80(a) | No |
| 80254616 | Nov 27, 2023 | IA | 3 | — |
MACK STRAIGHT TRUCK
|
1 | 392.2 | No |
| 79884835 | Oct 10, 2023 | IA | 3 | — |
KENWORTH TRUCK TRACTOR
|
4 | 391.11(b)(4), 396.17(c), 392.2 | Yes |
| 78756875 | May 23, 2023 | IA | 3 | ia-02---i80-eb-mm-115-van-meter |
MACK STRAIGHT TRUCK
|
1 | 392.2 | No |
Top Stations & Violation Codes Where this carrier gets inspected and what they get cited for
Most-Inspected Stations
| Station | State | Inspections | OOS |
|---|---|---|---|
| HIGHWAY 69 NB | IA | 1 | 0 |
Top Violation Codes Cited
| Code | Description | Category | Cited | OOS |
|---|---|---|---|---|
| 392.2 | Violation of Local Laws - Explain: | Unsafe Driving | 5 | 0 |
| 393.75(a)(3) | Tire-flat and/or audible air leak | Vehicle Maintenance | 2 | 2 |
| 396.17(c) | Operating a CMV without proof of a periodic inspection | Vehicle Maintenance | 2 | 0 |
| 391.11(b)(4) | Medical (Certificate) - Operating a CDL (passenger or property carrying) vehicle that is non-excepted and the driver has self-certified as excepted interstate or excepted intrastate with the state driver's licensing agency. | Driver Fitness | 1 | 1 |
| 392.80(a) | Driving a commercial motor vehicle while Texting | Unsafe Driving | 1 | 0 |
Related Records Cross-references to every adjacent page
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Dallas Center carriers
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Stations in Iowa
Where this carrier might be inspected
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16 inspections
Full roadside inspection history
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Fleet recall search
NHTSA recalls covering this fleet's vehicle years/makes
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Open the FMCSA National Consumer Complaint form for this carrier
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How FMCSA safety ratings work
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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 KNOLL BROTHERS ENTERPRISES 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 KNOLL BROTHERS ENTERPRISES LLC
Is KNOLL BROTHERS ENTERPRISES LLC an active motor carrier? ▾
What is KNOLL BROTHERS ENTERPRISES LLC's safety rating? ▾
How many inspections has KNOLL BROTHERS ENTERPRISES LLC had? ▾
What is KNOLL BROTHERS ENTERPRISES LLC's out-of-service rate? ▾
Where is KNOLL BROTHERS ENTERPRISES LLC based? ▾
Does KNOLL BROTHERS ENTERPRISES LLC have valid operating authority? ▾
How many trucks and drivers does KNOLL BROTHERS ENTERPRISES LLC operate? ▾
Has KNOLL BROTHERS ENTERPRISES 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.