A-OX WELDING SUPPLY COMPANY INC
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.
- Satisfactory FMCSA safety rating
Plain-text risk summary (print / paste)
TruckCodex risk summary — A-OX WELDING SUPPLY COMPANY INC (USDOT 44382) 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 Officer(s): KELLY KLEINWOLTERINK (Company officer); TIFFANY ANDERSON (Company officer 2) Organization: CORPORATION Blockers: (none) Cautions: • OOS rate worse than size peers — Driver and/or vehicle out-of-service rate is above the peer median. On file: • Satisfactory FMCSA safety rating Source: https://truckcodex.com/usdot/44382/ 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 4/5 scored components (mean 85/100). 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 85/100). 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 2.2% vs peer median 0% (worse). Vehicle OOS 15.4% vs peer median 15.4% (neutral). n=32934 same-size ACTIVE peers.
Official FMCSA Satisfactory 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.
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 | 8 | 0 | 0 |
| Trailers | 4 | 0 | 0 |
| Trucks | 22 | 0 | 0 |
Self-reported on the carrier’s Form MCS-150 (FMCSA Company Census).
Inspections (24 months)
All 76 inspections →| Driver | Vehicle | Hazmat | |
|---|---|---|---|
| Inspections | 43 | 43 | 5 |
| OOS inspections | 1 | 6 | 1 |
| OOS percentage | 2.33% | 13.95% | 20% |
| 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
A-OX WELDING SUPPLY COMPANY INC is a corporation based in SIOUX FALLS, SD, registered with the FMCSA under USDOT 44382. The carrier is currently active in FMCSA's records, with a safety rating of Satisfactory. MCS-150 self-reporting puts the fleet at 30 power units and 27 drivers, with 76 roadside inspections on file and a peak out-of-service rate of 15.4%. 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.
A-OX WELDING SUPPLY COMPANY INC is a mid-sized fleet, operating 30 power units and 27 drivers, organized as a corporation, based in Sioux Falls, SD. Across 43 roadside inspections in the last 24 months, the fleet recorded a 16.3% out-of-service rate, with no reportable crashes on file. no operating authority record was located.
43 roadside inspections over the last 24 months, up 59% versus the prior 24 months, concentrated in SD (23) and MN (11), with Level 1 inspections the most common.
16.3% out-of-service rate; led by Vehicle Maintenance (56.0% of violations); top code 177.801 (Accepting or Transporting Hazardous Materials not prepared in accordance with regulations) cited 4 times.
The fleet comprises 30 power units (mid-sized fleet) and 27 drivers; Volvo, Kenworth, 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 32,934 ACTIVE carriers operating 15–45 power units (±50% of this carrier's 30 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 |
|---|---|---|---|---|
| South Dakota (SD) | 25 | 0 | 0.0% | Jun 17, 2026 |
| Minnesota (MN) | 9 | 3 | 33.3% | Mar 11, 2026 |
| Nebraska (NE) | 5 | 2 | 40.0% | Jul 22, 2025 |
| US (US) | 2 | 0 | 0.0% | Apr 29, 2025 |
| Iowa (IA) | 1 | 1 | 100.0% | Jun 2, 2025 |
| North Dakota (ND) | 1 | 1 | 100.0% | May 4, 2026 |
Vehicle Fleet Top makes and models observed in roadside inspections
| Make | Model | Inspections |
|---|---|---|
| Volvo | 26 | |
| Kenworth | 14 | |
| Great Dane | 8 | |
| Alloy Trai | 6 | |
| Freightliner | 6 | |
| Unknown | 5 | |
| Western Star | 4 | |
| International | 3 | |
| Action Ind | 2 | |
| All Lakes | 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 13, 2026 |
| Controlled Substances / Alcohol | 0 | — | 0.00 | 0 | — | Jul 13, 2026 |
| Hours of Service | 1 | — | 0.54 | 1 | — | Jul 13, 2026 |
| Unsafe Driving | 0 | — | 0.00 | 0 | — | Jul 13, 2026 |
| Vehicle Maintenance | 10 | — | 2.11 | 2 | — | 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 (76 rows) View all 76 →
| Inspection # | Date ▼ | State | Level | Station | Vehicle | Violations | Top Codes | OOS |
|---|---|---|---|---|---|---|---|---|
| 88171018 | Jun 17, 2026 | SD | 2 | — |
KENWORTH STRAIGHT TRUCK
|
0 | — | No |
| 88101331 | Jun 10, 2026 | SD | 2 | — |
KENWORTH STRAIGHT TRUCK
|
0 | — | No |
| 87896973 | May 18, 2026 | SD | 3 | — |
VOLVO TRUCK TRUCK TRACTOR
|
0 | — | No |
| 87761835 | May 4, 2026 | ND | 2 | — |
FREIGHTLINER STRAIGHT TRUCK
|
1 | 393.75A3-TAOL | Yes |
| 87647749 | Apr 22, 2026 | SD | 2 | CANTON SD |
KENWORTH STRAIGHT TRUCK
|
0 | — | No |
| 87634788 | Apr 21, 2026 | SD | 1 | BLUNT SD |
FREIGHTLINER STRAIGHT TRUCK
|
0 | — | No |
| 87506518 | Apr 4, 2026 | SD | 3 | VALLEY SPRINGS SD |
VOLVO TRUCK TRUCK TRACTOR
|
0 | — | No |
| 87308785 | Mar 11, 2026 | MN | 3 | WORTHINGTON MN |
VOLVO TRUCK TRUCK TRACTOR
|
4 | 392.2-SLLIFTA, 395.3A2-HOSPD, 395.8E-HOSPD | No |
| 87137675 | Feb 19, 2026 | MN | 1 | WORTHINGTON MN |
VOLVO TRUCK TRUCK TRACTOR
|
2 | 392.2-SLLSR, 393.45D-B | No |
| 86425628 | Nov 20, 2025 | SD | 3 | TEA SD |
VOLVO TRUCK TRUCK TRACTOR
|
0 | — | No |
| 86290019 | Nov 11, 2025 | SD | 2 | WILMOT SD |
KENWORTH STRAIGHT TRUCK
|
0 | — | No |
| 86232030 | Nov 3, 2025 | SD | 3 | VERMILLION SD |
WESTERN STAR STRAIGHT TRUCK
|
0 | — | No |
| 86000994 | Oct 8, 2025 | SD | 3 | VALLEY SPRINGS SD |
VOLVO TRUCK TRUCK TRACTOR
|
0 | — | No |
| 85775913 | Sep 15, 2025 | SD | 2 | VALLEY SPRINGS SD |
VOLVO TRUCK TRUCK TRACTOR
|
0 | — | No |
| 85631421 | Aug 29, 2025 | SD | 2 | HURON SD |
KENWORTH STRAIGHT TRUCK
|
0 | — | No |
| 85367666 | Jul 24, 2025 | MN | 1 | WORTHINGTON MN |
VOLVO TRUCK TRUCK TRACTOR
|
0 | — | No |
| 85287004 | Jul 22, 2025 | NE | 1 | — |
WESTERN STAR STRAIGHT TRUCK
|
7 | 396.5B-HWSL, 177.817A-HMSP, 177.801-HMHCNP | Yes |
| 85189695 | Jul 11, 2025 | NE | 1 | — |
VOLVO TRUCK TRUCK TRACTOR
|
1 | 396.17C-PI | No |
| 85228216 | Jul 9, 2025 | MN | 1 | JASPER MN |
KENWORTH STRAIGHT TRUCK
|
0 | — | No |
| 85150924 | Jul 8, 2025 | SD | 2 | YANKTON SD |
WESTERN STAR STRAIGHT TRUCK
|
0 | — | No |
| 85150320 | Jul 8, 2025 | SD | 2 | DELL RAPIDS SD |
VOLVO TRUCK TRUCK TRACTOR
|
0 | — | No |
| 85046329 | Jun 26, 2025 | SD | 1 | VALLEY SPRINGS SD |
VOLVO TRUCK TRUCK TRACTOR
|
0 | — | No |
| 85002104 | Jun 18, 2025 | NE | 3 | ne-on-unnamed-street,-156-feet-ea |
WESTERN STAR STRAIGHT TRUCK
|
0 | — | No |
| 85011273 | Jun 16, 2025 | MN | 1 | MINNEOTA MN |
KENWORTH STRAIGHT TRUCK
|
0 | — | No |
| 84919462 | Jun 10, 2025 | SD | 2 | VALLEY SPRINGS SD |
VOLVO TRUCK TRUCK TRACTOR
|
0 | — | No |
Recent Crashes (5 rows)
| Report # | Date ▼ | State | Fatalities | Injuries | Tow | Hazmat | Severity |
|---|---|---|---|---|---|---|---|
| MN0141000094 | Apr 10, 2014 | MN | 0 | 0 | Yes | No | Tow |
| SD0201213967 | Nov 30, 2012 | SD | 0 | 0 | Yes | No | Tow |
| SD0200508023 | Jul 19, 2005 | SD | 0 | 0 | Yes | No | Tow |
| SD61L97G1115 | Jul 31, 1997 | SD | 0 | 0 | Yes | No | Tow |
| SD01397C0488 | Mar 3, 1997 | SD | 0 | 1 | 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 |
|---|---|---|---|
| VALLEY SPRINGS SD | SD | 13 | 0 |
| WORTHINGTON MN | MN | 4 | 1 |
| DELL RAPIDS SD | SD | 4 | 1 |
| MINNEOTA MN | MN | 2 | 0 |
| WORTHINGTON SCALE | MN | 2 | 1 |
| BLUNT SD | SD | 2 | 0 |
| JEFFERSON SD | SD | 2 | 0 |
| WATERTOWN SD | SD | 2 | 0 |
| SIOUX FALLSSD | US | 2 | 0 |
| CLARKS GROVE MN | MN | 1 | 1 |
Top Violation Codes Cited
| Code | Description | Category | Cited | OOS |
|---|---|---|---|---|
| 177.801 | Accepting or Transporting Hazardous Materials not prepared in accordance with regulations | Hazardous Materials | 4 | 0 |
| 392.2 | Violation of Local Laws - Explain: | Unsafe Driving | 4 | 0 |
| 393.55(d)(3) | No or Defective ABS Malfunction Indicator for towed vehicles on vehicles manufactured after February 2001 | Vehicle Maintenance | 2 | 0 |
| 393.78 | Wipers - Inoperative / missing / damaged wipers. | Vehicle Maintenance | 2 | 0 |
| 107.620(b) | No copy of US DOT Hazardous Materials Registration Number | Unknown | 1 | 0 |
| 177.817(e)(2) | 177.817(e)(2) | Hazardous Materials | 1 | 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 |
| 393.201(d) | Frame accessories improperly attached | Vehicle Maintenance | 1 | 0 |
| 393.45(d) | Brake connections with leaks or constrictions | Vehicle Maintenance | 1 | 0 |
| 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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South Dakota carriers
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Sioux Falls carriers
Carriers based in Sioux Falls, SD
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Stations in South Dakota
Where this carrier might be inspected
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76 inspections
Full roadside inspection history
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5 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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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 A-OX WELDING SUPPLY COMPANY 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 A-OX WELDING SUPPLY COMPANY INC
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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.