NORTHWESTERN ENERGY
Legal: NORTHWESTERN CORPORATION
Risk factors
Low riskVioCodes scoreA weighted read of the public FMCSA signals below — authority, insurance, out-of-service, crashes, roadside OOS rates, and carrier connections. A starting point for vetting, not a guarantee.
Roadside inspection performance
Out-of-service rate vs national average. Lower is better.
CSA performance breakdown
FMCSA · Sep 202655 inspections · 25 violations (10 OOS) · 30% of inspections had an OOS finding.
Violations by BASIC
click to filter codes
Top cited codes
score = count × severity weight
- 1393.9A-LRLIVehicle Maintenance
Lighting - Tail lamp - Any inoperative
18
3× · sev 6
- 2393.95A1Vehicle Maintenance
Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated.
6
3× · sev 2
- 3393.45D-BVehicle Maintenance
Air Brake - Audible air leak at a proper connection
4
1× · sev 4
- 4393.43DBMAVehicle Maintenance1 OOS
Brake - Breakaway not attached to the towing vehicle
4
1× · sev 4
- 5393.45D-BAALVehicle Maintenance1 OOS
Air Brake - Audible air leak at other than a proper connection
4
1× · sev 4
- 6393.43D-BVehicle Maintenance1 OOS
Brake - Missing or inoperable breakaway braking system on a trailer(s) or converter dolly
4
1× · sev 4
- 7393.60C
Windshield - Damaged or Discolored
1
1×
- 8392.2-SLLEWG2
State/Local Laws - Excessive weight - 2501-5000 lbs over on allowable gross weight
1
1×
- 9392.2-SLLEWA1
State/Local Laws - Excessive weight - 1-2500 lbs over on an axle/axle groups
1
1×
- 10392.2-SLLEWA3
State/Local Laws - Excessive weight - More than 5000 lbs over on an axle/axle groups
1
1×
Most inspected in · top 1 states
- MT30
Latest FMCSA SMS snapshot. Codes link to the lookup — severity weighting, contest angles, and the DataQs Drafter for each. Click a BASIC to filter the codes.
Safety trends & next-run projection
Where each BASIC sits today, how it ranks against peers, and where it’s heading at the next monthly SMS run.
FMCSA keeps the Crash Indicator percentile private, and its measure needs a power-unit history public data doesn’t expose — so it can’t be estimated yet. VioCodes now records power units monthly, so a calibrated Crash estimate should light up over time. These are the public crash facts (all state-reportable crashes count, regardless of fault).
“Projected” estimates the next monthly SMS run from inspections on record now. FMCSA marks the BASIC percentile itself “Not Public,” so the percentile shown is a VioCodes estimate of how the carrier ranks against its peers, presented as a likely range (shaded on the gauge) and calibrated against real carriers. Crash Indicator has no public estimate — FMCSA keeps its measures fully private. Estimates, not official FMCSA figures. Not affiliated with FMCSA.
Recommendations
What’s driving each score, what to do about it, and where it could go.
A high share of violations are occurring in Silver Bow County, MT
Medium impact8 of 26 violations in the last 12 months (31%) came from inspections in Silver Bow County, MT. That can mean tougher enforcement there or simply more of your miles run through it — either way it's worth a look.
- Review the inspections from Silver Bow County, MT to spot recurring issues
- Brief drivers running that lane; consider rerouting around the toughest enforcement corridors where practical
Unsafe Driving needs attention
Low impactEstimated Unsafe Driving percentile of 0% is under the 60% line. In decent shape, but here's what's driving it.
- Review recent inspections with violations in this BASIC and take remedial action with drivers/equipment
Hours-of-Service Compliance needs attention
Low impactEstimated Hours-of-Service Compliance percentile of 0% is under the 60% line. In decent shape, but here's what's driving it.
- Review recent inspections with violations in this BASIC and take remedial action with drivers/equipment
Controlled Substances/Alcohol needs attention
Low impactEstimated Controlled Substances/Alcohol percentile of 0% is under the 75% line. In decent shape, but here's what's driving it.
- Review recent inspections with violations in this BASIC and take remedial action with drivers/equipment
Lighting / lamps violations are the leading contributor to Vehicle Maintenance
Low impactEstimated Vehicle Maintenance percentile of 32% is under the 75% line. In decent shape, but here's what's driving it.
- 393.9A-LRLILighting - Tail lamp - Any inoperative3× · 20%
- 393.11A1-LCHLLighting - Lamps improper color, height, location.2× · 7%
- 393.11A1-LTSMLighting - Turn signal - Any missing on the rearmost vehicle.1× · 3%
- 393.43D-BBrake - Missing or inoperable breakaway braking system on a trailer(s) or converter dolly1× · 7%
- 393.45D-BAALAir Brake - Audible air leak at other than a proper connection1× · 7%
- 393.43DBMABrake - Breakaway not attached to the towing vehicle1× · 7%
- 393.75A3-TAOLTires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS1× · 12%
- 393.95A1Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated.5× · 9%
- Walk the lights every pre-trip and carry spare bulbs/fuses; clean lenses and check the trailer plug
- Prioritize the out-of-service items — they carry the heaviest weight
Recommendations are generated from the carrier’s public FMCSA roadside-inspection record. Percentiles and projections are VioCodes estimates, not official FMCSA figures. Informational, not legal advice.
90-day safety improvement plan
What this carrier has struggled with most in the last 90 days — where to focus now.
- 393.9A-LRLI×2Lighting - Tail lamp - Any inoperative
- 393.75A3-TAOLTires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS · OOS
- 393.9A-LILLighting - Identification lamp(s) inoperative
- Walk the lights every pre-trip and carry spare bulbs/fuses
- Clean lenses and check the trailer plug for corrosion
Based on roadside inspections in the last 90 days, ranked by what recurs most. Informational, not legal advice.
Inspection & crash map
live · FMCSA MCMISEvery inspection and crash on record — hover a point for the summary, click for full detail (codes, severity, CSA points).
CSA points = violation severity weight × FMCSA time weight (3× in the last 6 months, 2× at 6–12, 1× at 12–24). Points are spread within each state — FMCSA records the inspection state, not an exact location. Source: FMCSA MCMIS.
Equipment
VINs via NHTSA54 distinct vehicles seen in this carrier’s roadside inspections.
+ 24 more.
Equipment is inferred from VINs recorded on roadside inspections (FMCSA MCMIS), decoded via the NHTSA vPIC API — it reflects vehicles inspected, not a current fleet roster.
Crash record (US, last 24 months)
Total
1
Tow-away
1
Injury
0
Fatal
0
Company profile
FMCSA censusPRIVATE PROPERTY
- Interstate · 100+ mi1,186 drivers
- Company officer
- BRANDI LAMMI
- Operation
- Interstate
- D-U-N-S
- 2778090
- Registered since
- 1974-06-01
- Last MCS-150 update
- 2025-04-14
- Census status
- Active
Fleet: 841 trucks · 675 owned trailers.
Source: FMCSA Company Census File (data.transportation.gov). Fleet and driver counts are self-reported on the carrier’s most recent MCS-150 filing.
Connections
carrier graphThis carrier shares phone numbers or emails with 3 other carriers — review the connections below as part of your vetting.
Shared VINs come from FMCSA roadside-inspection records — a vehicle inspected under more than one carrier, often a fleet transfer or trailer interchange. Other links come from the FMCSA census. Shared identifiers are common and often legitimate — treat these as leads to investigate, not proof of wrongdoing.
Activity history
2 events- 04/14/2025MCS-150 update filed
15.0M mi reported (2024)
- 06/01/1974Registered with FMCSA
PRIVATE PROPERTY
Merged from FMCSA authority, insurance, out-of-service, and census records.
Operations
Classification
- PRIVATE PROPERTY
Area served
- Interstate
FMCSA safety rating
- Rating
- Not rated
- Type
- —
- Rated
- —
- Last review
- —
MCS-150 registration
- Form date
- 2025-04-14
- Reported mileage
- 15,000,000 mi (2024)
Got a violation you want to contest?
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