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A-OX WELDING SUPPLY COMPANY INC

Carrierintel Safety Score: 77/100. 12 inspection violations in 12 months. Last inspected Oct 2026.

DOT 44382ActiveInterstateSIOUX FALLS, SD

COMPANY

Authority since
—
MCS-150
2026-04-08 · 1,015,289 mi (2025)
Fleet
30 units · 4 trailers · 27 drivers
Annual mileage (VMT)
1,015,289 mi (2025)

ADDRESS

Physical
101 N HARLEM AVENUE
SIOUX FALLS, SD 57104
Mailing
PO DRAWER 86667
SIOUX FALLS, SD 57118

CONTACT

Phone
6053361125
Email
joev@aoxwelding.com

OFFICERS

Primary Officer
TIFFANY ANDERSON
Title
VP ADMINSTRATION

OPERATION & CARGO

Operation classification
Private Property
Specialty
Tanker / Bulk Liquids
Cargo types
3
General FreightLiquids / GasesOther: WELDING SUPPLIES
Self-reported by the company on its latest MCS-150 filing (FMCSA census). Reflects what the carrier is authorized and equipped to haul, not actual recent loads. Specialty is our summary of the declared cargo mix.
AUTHORITY
629 mo
Since USDOT registration
INSURANCE
Verification needed
No federal insurance filing found. Whether this carrier must file one is unclear from its registration; verify coverage through state records or the insurer.
RISK GRADE
Minimal Risk
1 risk factors · 2 strengths
OOS RATE
13.2%
9 / 68 inspections

Carrierintel Safety Score

Rolling 12-month heuristic based on inspections, OOS, violations, crashes & fatalities. Not the official FMCSA SMS score.

77
out of 100
Good
Markers: OOS inspection Crash Fatality

Fleet vs Reality

last 12 months · power-unit VINs from roadside inspections
Declared (MCS-150)
30 power units
Unique power units seen
10
+ 5 trailer VINs
Inspections
16
Discrepancy
0.3x

Minimal Risk

1 risk factor · 2 strengths · 4 data points

SAFETY PERFORMANCE

Crash Record
5 crashes · 0 fatal · 1 with injuries · 5 tow-away
Clean Inspection Rate
87% — 59 clean of 68 inspections
Out-of-Service Rate
13.2% — driver OOS 2 insp., vehicle OOS 7 insp.

COMPLIANCE & AUTHORITY

USDOT Registration
Status: Active
Operating Authority
No operating authority on file
Out-of-service orders
None on record
Authority Events
No authority history events
MCS-150 Filing
Last filed 2026-04-08

INSURANCE

Active Coverage
Verification needed — No federal insurance filing found. Whether this carrier must file one is unclear from its registration; verify coverage through state records or the insurer.

SUMMARY

Elevated OOS rate 12% (last 24 mo)
No crashes in the last 24 months
87% clean inspections

INDUSTRY REPORTS

  • ELD Tampering — Carriers cited for ELD tampering under 49 CFR § 395.8(e), by carrier and state.
  • Top Violations — The ten most-cited FMCSA violation codes of the last 30 days.
  • Phantom Fleets — Declared power units against the vehicles seen at roadside inspections.
  • English Proficiency — Carriers whose drivers were cited under 49 CFR § 391.11(b)(2), by carrier and state.
  • Methodology — Where the data comes from and how the Safety Score and Risk Grade are built.

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