CSA Scores & Trucking Insurance: How FMCSA Data Hits Your Premium

Jun 10, 2026 • 12 min de lectura

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CSA scores are the FMCSA's seven-category safety rating, and underwriters use them as the single biggest input into trucking insurance pricing. Carriers with all BASICs below the 50th percentile qualify for preferred-tier pricing — often 30-50% below market. Carriers with two or more BASICs above the 90th percentile get non-renewed by standard markets or pay 75-150% above market in surplus lines. Unsafe Driving and Hours of Service are the most heavily weighted. Most violations can be challenged through the FMCSA DataQs process and removed from the score.

DOT officer conducting a Level 1 roadside inspection on a Connecticut commercial truck — the source data behind CSA scores

Yesterday we covered bobtail and non-trucking liability — the coverage gap for leased-on owner-operators. Today we move upstream to the data that drives every renewal underwriting decision: CSA scores. If you do not actively manage your CSA profile, your insurance carrier will manage you out of it.

Insure Connecticut LLC reviews CSA scores on every renewal we handle. We have watched carriers move from non-preferred to preferred-tier pricing simply by cleaning up Hours of Service violations through DataQs challenges. We have also watched carriers lose Progressive, Northland, and Great West appetite over a single high-severity violation. Here is what underwriters actually look at, and what you can do about it.

What Are CSA Scores?

CSA stands for Compliance, Safety, Accountability — the FMCSA program that rates motor carriers on safety performance across seven categories called BASICs (Behavior Analysis and Safety Improvement Categories). Each BASIC is calculated from roadside inspections and crash data over a rolling 24-month window, weighted by severity and recency.

The seven CSA BASICs:

BASIC	What It Measures	Public?
Unsafe Driving	Speeding, reckless driving, improper lane change, texting/handheld	Yes
Crash Indicator	State-reported crashes (DOT-recordable) in the past 24 months	No (carrier only)
Hours of Service (HOS) Compliance	ELD violations, false logs, driving over hours	Yes
Vehicle Maintenance	Brake, tire, lighting, load securement violations	Yes
Controlled Substances/Alcohol	Drug/alcohol test failures, possession violations	No (carrier only)
Hazardous Materials Compliance	Placarding, paperwork, packaging hazmat violations	Yes
Driver Fitness	CDL validity, medical card, physical qualification	Yes

Each BASIC is scored on a 0-100 percentile scale against peer carriers of similar size and operation type. Higher score = worse profile. A score of 65 in Unsafe Driving means the carrier ranks worse than 65% of similar carriers. The FMCSA "intervention threshold" varies by BASIC, typically 65-85 percentile.

How Do CSA Scores Affect Insurance Pricing?

CSA scores are the single biggest input into trucking insurance underwriting after the loss-run history. Insurance carriers categorize prospects by CSA profile:

CSA Profile	Underwriting Tier	Pricing Impact
All BASICs below 50th percentile	Preferred	30-50% below market
BASICs in 50-65 percentile range	Standard	Market rate
One BASIC above 65, others below	Standard with surcharge	10-25% above market
Two BASICs above 65 percentile	Non-preferred	30-75% above market
Two+ BASICs above 90 percentile	Surplus lines / specialty	75-150% above market
Driver Fitness or Drug/Alcohol violations	Often uninsurable in standard markets	Excess specialty only

A real example from our book: a 12-unit Connecticut reefer fleet renewing in early 2026 carried Unsafe Driving at 78 (peers around 50). Their Progressive renewal quote came in 38% above prior year. After targeted DataQs challenges that removed three contested speeding citations, the Unsafe Driving score dropped to 51 over six months. The next renewal came in 22% below prior year.

Which BASICs Matter Most to Underwriters?

Not all BASICs are weighted equally in underwriting decisions. From most to least impactful:

1. Unsafe Driving

The single most predictive BASIC for future at-fault accidents. Speeding violations, reckless driving citations, texting violations. Underwriters treat Unsafe Driving above the 65th percentile as a significant rate driver.

2. Crash Indicator

Carrier-only (not publicly visible), but underwriters pull it directly from FMCSA. DOT-recordable crashes in the past 24 months. High Crash Indicator is the single biggest predictor of insurance loss ratio.

3. Hours of Service Compliance

HOS violations correlate strongly with fatigue-related catastrophic accidents. ELD-mandate violations, false logs, drive-time exceedances. Two or more HOS violations in 12 months triggers underwriter scrutiny.

4. Vehicle Maintenance

Most relevant for fleets. Persistent brake, tire, or lighting violations signal weak operational discipline. Less impactful for owner-operators with one or two units.

5. Driver Fitness and Controlled Substances/Alcohol

Violations in these BASICs trigger automatic non-renewal in many preferred markets — even at low percentile scores. A single positive drug test or expired medical card can disqualify the carrier from preferred placement for 24 months.

How CT Carriers Can Improve CSA Scores

Step 1: Run a DataQs Audit

Pull your full CSA inspection history from the FMCSA SAFER system. Review every violation in the past 12 months for accuracy. Common targets for DataQs challenges:

Violations the driver did not commit (wrong driver name on citation)
Citations dismissed in court (you need the certified dismissal record)
Inspection coding errors (wrong violation code applied)
Equipment defects that were already repaired before the inspection (documentation required)
Speed measurement errors (radar calibration, distance-traveled discrepancies)

Step 2: Tighten Driver Hiring

Pull PSP (Pre-Employment Screening Program) reports on every applicant. Three-year MVR review. Drug test pre-employment. Drivers with any drug/alcohol violations on PSP, multiple HOS violations, or serious-injury accidents in the past 24 months should be disqualified at hire.

Step 3: ELD Compliance Audit

HOS violations now overwhelmingly come from ELD non-compliance — unassigned driving time, false personal-conveyance use, ELD edits not properly annotated. A monthly ELD audit catches 80% of preventable HOS violations before they become inspection events.

Step 4: Pre-Trip and Roadside Discipline

The single most effective vehicle maintenance fix: a 15-minute mandatory pre-trip inspection with a paper checklist, signed by the driver, filed by date. Roadside inspectors look for paperwork as much as defects — clean documentation drops violation rates significantly.

Step 5: Quarterly Safety Training

Document quarterly driver meetings covering recent violations, near-miss events, and policy reminders. Most preferred carriers ask for this documentation at renewal as a "safety culture" indicator.

How Long Do Violations Stay on CSA?

CSA uses a 24-month rolling window for inspection and crash data. Severity weights vary:

Most violations: 24-month visibility, full weight in months 1-6, decaying weight in months 7-24
Out-of-service violations: heavier weighted than non-OOS
Crashes: 24 months for the Crash Indicator BASIC
Drug/alcohol failures: tracked separately through Drug & Alcohol Clearinghouse for 5 years

The practical takeaway: a clean 24-month inspection history can fully reset a carrier's CSA profile, even after a bad 12-month stretch. Consistent improvement compounds over the 2-year window.

The Pre-Employment Screening Program (PSP)

While CSA scores attach to motor carriers, the FMCSA also maintains driver-specific records through the Pre-Employment Screening Program (PSP). PSP reports show:

Roadside inspection history for the past 3 years
Crash history for the past 5 years
State and federal violations attributed to the individual driver

Motor carriers pull PSP on every driver hire. A driver with a clean MVR but multiple PSP-recorded HOS or speeding violations will be flagged. PSP data does not show up on the driver's CSA score (CSA is carrier-level), but it directly affects employability across carriers.

What Underwriters Actually Look For

From client renewals at Insure Connecticut, here are the patterns underwriters flag:

Trend direction — is the BASIC moving up or down over the last 12 months?
Severity skew — many minor violations vs few severe violations
OOS rate — out-of-service order frequency relative to fleet size
Crash frequency — at-fault rate, severity, injury vs property-only
Driver tenure — average years of CDL experience among the driver pool
DataQs activity — carriers actively managing CSA data are scored more favorably
ELD compliance score — carriers with documented compliance programs get preferential underwriting

CSA Score Impact by Operation Type

Owner-Operator (1-2 units)

CSA scores volatile — a single inspection moves percentile significantly because of small denominators. Focus on hiring (yourself) standards: clean MVR, no HOS violations, current medical card. One bad inspection can spike the BASIC for 18 months.

Small Fleet (3-25 units)

CSA scores stabilize as inspection volume grows. Quarterly score reviews become essential. DataQs management starts to pay back significantly. ELD compliance audit cycles should run monthly.

Mid-Market Fleet (25-100 units)

CSA management is now an operational discipline — dedicated safety officer, in-cab training, telematics-based driver scoring. Insurance carriers offer 5-15% premium discounts for documented safety management systems. Failure to maintain a safety program triggers preferred-market non-renewal.

Large Fleet (100+ units)

CSA scores are a board-level metric. Loss prevention budgets are direct ROI investments. Most carriers at this size carry SMS (Safety Management System) certification, ATA Smartway, or similar third-party safety credentials that drive preferred-tier underwriting.

Key Takeaways — CSA Scores and Trucking Insurance

CSA scores are the FMCSA's seven-category safety rating — Unsafe Driving and Crash Indicator weighted heaviest in underwriting
All BASICs below 50th percentile = preferred-tier pricing (30-50% below market)
Two BASICs above 90th percentile = surplus-lines pricing (75-150% above market) or uninsurable in standard markets
DataQs challenges can remove incorrect violations and meaningfully reduce CSA scores
Violations age off after 24 months — consistent improvement compounds
Driver Fitness and Drug/Alcohol violations trigger automatic preferred-market non-renewal
PSP reports follow the driver across carriers — affects hiring, not the carrier's CSA score directly

Frequently Asked Questions

Can I see my own CSA scores publicly?

Yes for five BASICs (Unsafe Driving, HOS, Vehicle Maintenance, Hazmat, Driver Fitness). No for Crash Indicator and Controlled Substances/Alcohol — those are carrier-only access through FMCSA SAFER. Brokers, shippers, and insurance underwriters can pull a fuller view through subscription services.

Do CSA scores affect my ability to get loaded by brokers?

Yes. Most major brokers and 3PLs (CHRobinson, J.B. Hunt 360, Coyote, NFI, Echo) automatically screen carriers by CSA scores. Two BASICs over 65 typically disqualifies the carrier from preferred lanes. Some shippers (Amazon Relay, Walmart) maintain hard cutoffs.

How long does a DataQs challenge take?

Most DataQs cases close within 30-90 days. Complex cases involving court records or multi-state inspections can take 6 months. Successful challenges remove the violation from the CSA calculation retroactively, which improves the score immediately.

What is a "Conditional" or "Unsatisfactory" safety rating?

Separate from CSA scores, FMCSA periodically conducts on-site compliance reviews and issues a safety rating: Satisfactory, Conditional, or Unsatisfactory. Conditional triggers most insurance carriers to non-renew or surcharge. Unsatisfactory means the motor carrier loses operating authority — uninsurable in any market.

Should I switch motor carrier authority to escape bad CSA scores?

This is a complex regulatory question — FMCSA actively investigates "chameleon carrier" patterns (operators creating new MC numbers to escape bad records). New authority requires real changes in ownership, operation, and equipment. Talk to your insurance broker and a transportation attorney before going this route.

Tomorrow we shift gears (literally) to a niche segment of trucking that is exploding in Connecticut: hot-shot trucking. Class 3-5 trucks under 26,000 GVWR, gooseneck trailers, and a different set of FMCSA rules. Hot-shot is the fastest-growing segment of the owner-op market — here is what the insurance side looks like.

If your CSA scores are hurting your renewal — or you want to set up an active DataQs and safety-management program before they become a problem — Insure Connecticut LLC works through CSA cleanup with every commercial trucking client. Call (860) 970-0977 or visit our trucking insurance page. We help Connecticut motor carriers move from non-preferred to preferred-tier pricing every renewal cycle.