A freight broker opens a carrier profile, sees an elevated safety percentile, and assumes the trucking company has failed an FMCSA safety inspection. That is a common mistake. A percentile is not an official safety rating, and it does not automatically mean the carrier is prohibited from hauling freight.
So, what is a CSA score? It is an informal term for the safety-performance measures and percentile rankings used in the Federal Motor Carrier Safety Administration's Compliance, Safety, Accountability program. FMCSA does not assign one overall numeric CSA score to trucking companies. Instead, it evaluates safety information across seven categories called BASICs.
For brokers, dispatchers, and small carriers, the useful question is which category has a problem and what the underlying records show. An elevated Vehicle Maintenance percentile calls for a different review than repeated Hours-of-Service violations. This guide explains how the system works, how to read the results, and what to check before assigning a load.
Understanding CSA Scores and the FMCSA Framework
FMCSA uses its Compliance, Safety, Accountability program to help identify motor carriers that may need additional safety oversight.
The program draws on roadside inspections, state-reported crashes, and applicable investigation findings. Those records feed into the Safety Measurement System, commonly called SMS.
SMS organizes safety information into seven Behavior Analysis and Safety Improvement Categories, or BASICs.
For categories with sufficient qualifying information, the system calculates a performance measure and converts it into a percentile rank.
The percentile compares a carrier with other carriers in a similar safety-event group.
A lower percentile generally indicates better relative performance. A higher percentile indicates worse relative performance.
That distinction matters when interpreting the results.
A carrier at the 85th percentile in Vehicle Maintenance has not failed 85 percent of its inspections. The percentile describes its relative position in that BASIC's comparison group.
It also does not establish whether the carrier can legally accept a shipment.
Operating authority, official safety ratings, and out-of-service orders must be checked separately.
What Does CSA Stand For?
CSA stands for Compliance, Safety, Accountability.
Compliance concerns whether motor carriers and drivers follow applicable federal safety regulations.
These rules address driver qualifications, hours of service, vehicle condition, hazardous materials transportation, and other regulated activities.
Safety concerns the operating behavior and conditions reflected in inspections, crashes, and relevant investigations.
Accountability concerns identifying safety problems and requiring or encouraging corrective action through the appropriate regulatory process.
Consider a carrier with repeated brake violations.
SMS may identify a pattern within Vehicle Maintenance.
FMCSA can use that information when prioritizing carriers for additional attention.
The carrier, meanwhile, can examine its inspection reports and determine whether its maintenance procedures are allowing defective equipment onto the road.
For a broker, the same records provide information that may affect carrier selection.
CSA is therefore not simply a scoring system. It is part of how FMCSA uses available compliance data to identify safety concerns.
CSA Scores vs. Official FMCSA Safety Ratings
A BASIC percentile and an official federal safety rating are different.
FMCSA safety ratings may be:
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Satisfactory: The carrier's safety management controls meet the applicable federal safety fitness standard.
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Conditional: The carrier's safety management controls are inadequate, but the deficiencies have not resulted in an Unsatisfactory rating.
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Unsatisfactory: The carrier's safety management controls fail to meet the applicable safety fitness standard.
Many carriers have no assigned federal safety rating.
Their records may show Not Rated.
That does not mean the carrier has received an Unsatisfactory rating. It also does not mean FMCSA has certified the company as having excellent safety performance.
An official safety rating results from the applicable federal safety fitness process.
SMS percentiles serve another purpose. They help identify carriers that may warrant intervention based on available safety information.
A carrier can have a Satisfactory federal safety rating and still exceed an intervention threshold in a BASIC.
Likewise, a carrier may have an elevated BASIC percentile without being subject to an out-of-service order.
For load approval, check three separate things:
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The carrier's current operating authority.
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Its official safety rating and any applicable operating restrictions.
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Its available SMS safety information.
Do not substitute one for another.
If a required operating authority is revoked, a low Vehicle Maintenance percentile does not make the carrier eligible to haul that load.
If authority is active but the safety profile shows repeated recent violations, the broker may still need a closer safety review.
What Information Can the Public See?
Freight brokers can access public SMS information through FMCSA.
The public display includes selected BASIC percentiles and available inspection, violation, crash, and investigation information.
The five BASIC categories with publicly available percentiles are:
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Unsafe Driving
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Hours-of-Service Compliance
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Driver Fitness
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Controlled Substances/Alcohol
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Vehicle Maintenance
Two BASIC percentiles are not publicly displayed:
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Crash Indicator
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Hazardous Materials Compliance
Authorized carriers can access additional information about their own operations.
This explains why a broker may see detailed inspection records but no public Crash Indicator percentile.
The missing number is not a perfect score.
It is also not evidence that the carrier has a poor result.
When public information is unavailable, record that limitation rather than assigning an assumed value.
Another point matters for small carriers.
A company may not have enough qualifying inspections or other events for FMCSA to calculate a percentile in a particular BASIC.
That situation should be described as insufficient information, not a passing grade.
The 7 BASIC Categories Explained
Each BASIC focuses on a different aspect of motor carrier safety.
For freight brokers, the category matters because it tells you what type of problem to investigate.
For carriers, it helps identify which operating procedures need attention.
The seven categories are:
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Unsafe Driving
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Hours-of-Service Compliance
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Driver Fitness
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Controlled Substances/Alcohol
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Vehicle Maintenance
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Hazardous Materials Compliance
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Crash Indicator
A carrier may have significant findings in one category and relatively little information in another.
That is why a single overall score would hide useful detail.
Unsafe Driving and Hours of Service Compliance
Unsafe Driving BASIC
This category covers violations associated with unsafe operation of commercial motor vehicles.
Examples include:
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Speeding
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Improper lane changes
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Following too closely
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Reckless driving
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Certain traffic control violations
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Texting while driving a commercial motor vehicle
Suppose a carrier is being considered for a shipment requiring a long highway run.
Its public safety information shows repeated speeding violations.
The broker should review the dates and nature of those violations, along with any other relevant information available.
One older violation may require a different response from several recent violations.
The company may have introduced driver coaching or changed its dispatch practices. Those explanations can be considered, but they should not replace the underlying record.
For a carrier, repeated unsafe driving violations may indicate a problem with supervision, driver training, or scheduling expectations.
Hours-of-Service Compliance BASIC
Hours-of-service rules control how long covered commercial drivers may drive and remain on duty under applicable conditions.
This BASIC includes violations involving:
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Driving beyond applicable limits
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Required off-duty or rest periods
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Duty-status records
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Electronic logging device requirements
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Other hours-of-service compliance obligations
This category is particularly relevant when a dispatcher promises an unusually demanding transit time.
Consider a load that requires substantial driving and has a narrow delivery appointment.
Before accepting the schedule, confirm how the carrier intends to complete the movement legally.
A team-driver arrangement or another legitimate operating plan may make a schedule possible.
But an optimistic promise from a dispatcher is not evidence that the hours-of-service requirements can be met.
For small carriers, recurring violations should lead to a review of both driver practices and dispatch planning.
If the company repeatedly assigns schedules that leave inadequate time for required rest, correcting driver paperwork alone will not solve the problem.
Driver Fitness and Controlled Substances
Driver Fitness BASIC
Driver Fitness concerns whether drivers meet applicable qualification requirements.
Violations may involve:
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Driver licensing
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Required endorsements
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Medical certification
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Driver qualification records
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Other eligibility requirements
A carrier's operating authority does not prove that every driver is qualified for every assignment.
For example, a shipment involving equipment or commodities that require a specific commercial driver's license endorsement needs an appropriately qualified driver.
A broker may need to confirm that the assigned equipment and operation meet the load requirements.
The carrier is responsible for maintaining its applicable driver qualification records and checking eligibility before dispatch.
If inspection records repeatedly identify licensing or qualification issues, the problem may extend beyond one driver's paperwork.
It may indicate that the company needs a more reliable pre-dispatch review.
Controlled Substances/Alcohol BASIC
This category addresses violations of applicable controlled substances and alcohol requirements.
It can involve prohibited use or possession, required testing procedures, and certain driver eligibility restrictions.
These records should not be treated as routine paperwork problems.
They may affect whether a driver is permitted to perform safety-sensitive functions.
For carriers, relevant controls include maintaining a compliant testing program, following applicable Clearinghouse requirements, keeping required records, and preventing prohibited drivers from being assigned covered duties.
For brokers, the public BASIC information can identify a compliance concern.
It does not provide a complete driver qualification investigation.
If a carrier has significant recent findings in this category, examine the available records and determine whether additional verification is warranted before approval.
Vehicle Maintenance and Cargo Related Violations
Vehicle Maintenance BASIC
The Vehicle Maintenance BASIC includes violations involving vehicle condition, inspection, repair, and certain cargo securement requirements.
Common examples are:
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Brake defects
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Tire defects
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Lighting failures
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Steering or suspension problems
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Maintenance and inspection violations
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Improper cargo securement
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Certain loading-related violations
This category can be especially relevant for freight brokers arranging specialized loads.
Suppose a carrier offers a flatbed for industrial machinery.
The available inspection history shows repeated cargo securement violations.
That does not automatically establish that the specific trailer or driver is unsuitable.
It does justify reviewing the company's available records and confirming the equipment and securement arrangements for the proposed shipment.
For a refrigerated load, equipment suitability also matters, although a Vehicle Maintenance percentile does not tell you whether a particular reefer unit will maintain the required temperature.
Keep the checks separate.
Review the historical safety information.
Then confirm the actual equipment requirements for the load.
Roadside vehicle out-of-service violations
A roadside inspector may place a specific vehicle out of service because of a qualifying defect.
That does not automatically mean the entire motor carrier is under an out-of-service order.
A vehicle-level prohibition and a carrier-wide operating restriction have different consequences.
If assigned equipment has an unresolved out-of-service condition, it cannot be used until the applicable requirements are satisfied.
For brokers, the important question is whether the actual equipment arriving for pickup is authorized and suitable for service.
Hazardous Materials Compliance BASIC
Hazardous Materials Compliance concerns certain requirements for transporting regulated hazardous materials.
These may involve:
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Shipping papers
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Placards
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Markings and labels
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Packaging
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Loading and securement
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Applicable hazardous materials procedures
A broker arranging a regulated hazardous materials shipment must verify more than ordinary property authority.
The shipment may require specific documentation, qualified drivers, appropriate equipment, and other applicable compliance measures.
A carrier that regularly hauls general freight may not be suitable for every hazardous materials shipment.
Remember that the Hazardous Materials Compliance percentile is not publicly displayed.
Do not interpret its absence as confirmation that the carrier meets all applicable requirements.
Crash Indicator Category
The Crash Indicator BASIC uses qualifying state-reported crash information to help identify patterns of crash involvement.
Reportable crashes can involve fatalities, qualifying injuries, or vehicles requiring transportation away from the scene under the applicable reporting criteria.
One distinction is essential.
Crash involvement does not automatically establish that the truck driver caused the crash.
A truck may be involved in a reportable collision caused by another road user.
That event can still appear in the carrier's crash information.
This is why brokers should avoid treating raw crash counts as a complete safety assessment.
Fleet size and operating activity also matter.
A carrier operating many trucks may have more reported events than a carrier with only a few vehicles.
SMS uses its methodology to account for relevant differences when evaluating crash information.
The Crash Indicator percentile is not publicly displayed, although certain crash records are available.
Crash Preventability Determination Program
FMCSA operates a Crash Preventability Determination Program for eligible crash types.
Through this program, a carrier may request a review of a qualifying crash.
If FMCSA determines that a crash was Not Preventable, the crash is excluded from the Crash Indicator BASIC calculation.
It may still appear in public crash records with the appropriate designation.
The program's determination should not be confused with a legal finding of fault or liability.
For a broker, this means checking the available crash details before deciding what the information indicates.
A crash count alone cannot explain responsibility, current safety practices, or the circumstances of a particular event.
How FMCSA Calculates CSA Percentiles
FMCSA does not add all violations together and produce one company-wide CSA number.
The Safety Measurement System uses separate calculations for the BASIC categories.
Although the complete methodology is technical, brokers and dispatchers only need to understand the main stages to interpret a result correctly.
Step 1: Collect Safety Data
SMS uses relevant roadside inspection, crash, and investigation information.
Its on-road performance calculations generally consider a rolling 24-month period of inspection and crash data.
For roadside inspections, qualifying safety violations can affect the calculation even when the violation does not result in an out-of-service order.
A separate traffic ticket is not always required for a violation to appear in the safety data.
The details of the inspection report matter.
For example, an inspection may identify a lighting violation without placing the vehicle out of service.
That violation may still contribute to the relevant BASIC measure.
Clean qualifying inspections can also affect the exposure side of certain calculations.
The treatment depends on the category and SMS methodology.
Step 2: Apply Severity and Time Weighting
SMS assigns severity weights to qualifying violations.
These weights reflect the relative importance of different violations within the methodology.
The system also considers when events occurred.
More recent violations generally receive more weight than older events within the applicable measurement period.
For example, a recent serious vehicle maintenance violation may affect the measure differently from an older, lower-severity violation.
The calculation also has rules for combining violations within an inspection.
This matters when comparing carriers.
Two companies can have the same number of inspections with violations but receive different BASIC measures because the violations differ in severity and timing.
Do not compare isolated severity weights from different categories as though they represent the same calculation.
Step 3: Account for Exposure
A trucking company operating three power units does not have the same operating exposure as a company managing a large fleet.
SMS uses category-specific exposure calculations to help account for differences in activity.
Depending on the BASIC, relevant factors can include inspection counts, fleet size, and reported vehicle miles traveled.
These adjustments are intended to support more meaningful comparisons.
They do not eliminate every limitation in the data.
For example, some carriers receive more roadside inspections than others because of their routes, operations, or enforcement circumstances.
A small carrier with limited inspection history may not have enough information to receive a percentile in a particular category.
That absence should be interpreted carefully.
Step 4: Compare Similar Safety-Event Groups
After calculating a performance measure, SMS compares eligible carriers with others in an appropriate safety-event group.
Those groups are based on factors such as the number of relevant inspections, inspections with violations, or crashes.
The percentile rank indicates relative performance within that group.
Consider a carrier at the 82nd percentile in Vehicle Maintenance.
Its measure is worse than those of approximately 82 percent of the carriers in the applicable comparison group.
That does not mean:
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82 percent of its trucks have defects.
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82 percent of its inspections failed.
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The carrier has an official federal safety rating of 82.
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FMCSA has prohibited the company from operating.
It means the carrier's relative performance in that BASIC is elevated.
The next step is to examine the underlying violations and determine what they mean for the carrier review.
Step 5: Compare the Percentile With the Intervention Threshold
FMCSA uses intervention thresholds to help prioritize motor carriers for safety oversight.
The threshold depends on the BASIC and the type of carrier.
For general property carriers, the current thresholds are:
| BASIC category | Intervention threshold |
|---|---|
| Unsafe Driving | 65th percentile |
| Hours-of-Service Compliance | 65th percentile |
| Crash Indicator | 65th percentile |
| Driver Fitness | 80th percentile |
| Controlled Substances/Alcohol | 80th percentile |
| Vehicle Maintenance | 80th percentile |
| Hazardous Materials Compliance | 80th percentile |
Different thresholds apply to passenger and certain hazardous materials carriers.
These are FMCSA intervention thresholds, not universal rules for freight broker approval.
A carrier above the applicable threshold may receive additional regulatory attention.
That does not automatically mean its authority is revoked or that FMCSA has issued an out-of-service order.
For example, a general property carrier at the 82nd percentile in Vehicle Maintenance exceeds the relevant intervention threshold.
A broker should review the maintenance violations, determine whether further checks are necessary, and apply its documented carrier selection criteria.
The percentile itself does not establish that the carrier is legally barred from accepting the shipment.
Why CSA Percentiles Can Change
SMS updates monthly.
A carrier's percentile can change because of several factors:
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A new inspection adds qualifying violations.
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A new reportable crash enters the data.
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An older event loses weight.
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An event moves outside the rolling measurement period.
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Corrected information changes the underlying records.
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The carrier moves within its comparison group.
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Relative performance changes among comparable carriers.
A percentile can therefore move even when the carrier has not received a new violation that month.
This can confuse brokers comparing two saved reports.
Suppose a carrier's Vehicle Maintenance percentile changes between monthly updates.
Do not assume the change proves that a new inspection occurred.
Open the underlying records and review the relevant dates.
For carriers, correcting maintenance procedures today does not immediately remove valid older violations.
Those events may continue influencing SMS until the methodology reduces their weight or removes them from the measurement period.
What Is a CSA Score When You See One in a Carrier Profile?
The phrase CSA score is often used loosely in carrier screening software.
A commercial profile may show a BASIC percentile, an official safety rating, or a proprietary risk score.
Those are different measures.
For example, a dashboard may display a carrier trust score of 40.
Unless the tool identifies that number as a particular FMCSA BASIC percentile, it should not be described as one.
Commercial platforms may combine authority history, inspection results, insurance information, and other indicators using their own formulas.
That analysis may help a broker decide which records require attention.
It is not an official FMCSA determination.
Before making a booking decision, identify exactly what the displayed result represents.
Ask:
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Is the number an SMS percentile?
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Which BASIC does it describe?
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Is it a privately calculated risk score?
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What records support the result?
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How recently was the data updated?
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Does the carrier have a separate official operating restriction?
These questions prevent a common mistake: treating every number on a carrier dashboard as if FMCSA calculated it.
How to Check Public SMS Information
You can review available carrier safety information directly through the FMCSA Safety Measurement System.
Follow this process:
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Open the SMS website.
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Search for the carrier using its USDOT number.
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Confirm that the legal name matches the company being reviewed.
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Open the carrier's available BASIC information.
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Identify any category showing an elevated percentile or relevant concern.
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Open the supporting inspection and violation records.
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Review the dates, violation descriptions, and available inspection context.
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Record the source and date of your review.
Do not stop after reading the percentile.
If Vehicle Maintenance is elevated, determine whether the records involve brakes, tires, lights, cargo securement, or another issue.
If Hours-of-Service Compliance is elevated, review the available duty-status and related violations.
The category tells you where to investigate. The individual records explain the actual findings.
For an initial carrier identity check, use the appropriate federal registration sources alongside SMS.
A consolidated service can help organize the information. For example, the FMCSA carrier vetting tools provided by Carrier90 support DOT and MC number lookups and available carrier safety information.
When a material result affects load approval, verify the relevant official record before making a final decision.
Why an Absent BASIC Percentile Is Not Automatically Good News
A missing percentile can mean different things.
The carrier may lack enough qualifying safety events for a calculation.
The category's percentile may not be publicly available.
Other methodology requirements may also affect whether a percentile is assigned.
For example, a recently registered carrier may have little roadside inspection history.
That does not prove the carrier is unsafe.
It also does not establish that it has a strong safety record.
A broker should review whatever information is available and complete the other necessary carrier checks.
For a new carrier, those may include authority, insurance, legal identity, dispatch contact, and equipment suitability.
Do not enter a zero in your internal carrier assessment simply because SMS displays no percentile.
Zero and unavailable are not the same result.
Why CSA Scores Matter for Freight Brokers and Shippers
BASIC information can help brokers identify safety concerns before tendering freight.
The practical value depends on using the correct category and interpreting the underlying records.
A general concern about a high score is not enough.
The broker needs to know which requirement or operating practice may be affected.
Identifying Safety Concerns Before Tendering a Load
Consider a carrier offering a long-haul shipment with a tight delivery appointment.
The public SMS profile shows an elevated Hours-of-Service Compliance percentile.
The broker should examine the available violations and consider whether the proposed transportation schedule can be completed under applicable rules.
Ask the dispatcher how the load will be handled.
If the schedule depends on multiple drivers or a relay, confirm the relevant arrangement.
For a different carrier, an elevated Vehicle Maintenance percentile may raise questions about the condition of assigned equipment.
The appropriate review could involve examining recent maintenance-related violations and confirming equipment suitability.
These are different concerns.
Do not apply the same response merely because both carriers have an elevated percentile.
Understanding Safety Risks Without Misreading the Data
A high BASIC percentile is a reason to examine the details.
It does not mean every driver or truck operated by the company is unsafe.
Likewise, a lower percentile cannot guarantee that a particular shipment will be completed without problems.
Public records reflect qualifying events over a defined period.
They do not provide a real-time inspection of the exact tractor and trailer arriving for pickup.
A carrier may have corrected earlier maintenance problems while those violations remain within the rolling measurement period.
The broker can consider verifiable corrective action, but should not disregard the original findings without review.
For example, a carrier may explain that it replaced defective equipment and changed its inspection procedures.
That explanation is relevant.
The available inspection history, current equipment information, and brokerage approval criteria still need to support the final decision.
Separating Safety Information From Operating Authority
A carrier's safety percentile is not the same as its operating authority.
A carrier can have an elevated BASIC percentile while retaining authority to operate.
Another company may have little public safety information but lack the authority required for the proposed shipment.
These situations must be handled differently.
Before assigning a typical interstate for-hire property load, review:
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Legal business identity
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Required motor carrier operating authority
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Applicable out-of-service orders
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Relevant insurance requirements
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Available safety information
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Authorized dispatch contact
If a required authority is revoked, the carrier cannot be approved for that operation merely because its public safety information appears favorable.
If authority is active but the SMS profile raises concerns, investigate those concerns under the brokerage's carrier approval procedure.
Do not use a safety score as a substitute for regulatory authorization.
What to Do When a Carrier Has an Elevated BASIC
A broker does not need to conduct a full safety investigation every time a percentile changes.
The review should be proportionate to the actual concern.
Use four steps.
1. Identify the BASIC.
Determine whether the concern involves Unsafe Driving, Hours-of-Service Compliance, Driver Fitness, Controlled Substances/Alcohol, or Vehicle Maintenance.
2. Review the specific findings.
Examine available inspection dates, violation types, and relevant context.
3. Decide whether the finding affects the load.
A pattern of cargo securement violations may deserve particular attention for a specialized flatbed shipment.
Hours-of-service concerns may warrant closer review of a demanding delivery schedule.
4. Record the decision.
Document the information reviewed and whether the carrier was approved, held, or rejected under your internal criteria.
For example, a broker may identify repeated recent brake violations.
The operations team may request additional equipment information before assigning a specialized trailer.
If the required review is completed satisfactorily, record why the booking proceeded.
If a material issue remains unresolved, keep the assignment on hold.
Avoid describing a carrier as legally prohibited unless a relevant official record establishes that status.
Common CSA Score Misconceptions
Myth: Every trucking company receives one overall CSA score.
Fact: SMS evaluates seven BASIC categories separately. FMCSA does not assign a single overall numeric CSA score.
Myth: A percentile of 80 means the carrier failed 80 percent of inspections.
Fact: A percentile reflects relative performance among carriers in an appropriate safety-event group.
Myth: A high percentile automatically places the carrier out of service.
Fact: An intervention threshold may lead to additional regulatory attention. It does not automatically create an out-of-service order.
Myth: Not Rated means the carrier passed an FMCSA safety investigation.
Fact: Not Rated means no federal safety rating is assigned. It is not equivalent to Satisfactory.
Myth: Every crash listed in SMS was caused by the truck driver.
Fact: Reportable crash involvement does not automatically establish fault or preventability.
Myth: Brokers can see all seven BASIC percentiles.
Fact: Crash Indicator and Hazardous Materials Compliance percentiles are not publicly displayed.
How Motor Carriers Can Improve Their Safety Ratings
If a carrier wants to improve its safety performance, the starting point is not the percentile itself.
Start with the violations and operating practices behind the result.
A maintenance problem needs a maintenance solution. Hours-of-service violations may require changes to scheduling and driver supervision.
The following process helps carriers connect SMS findings with practical corrective action.
It is also useful for brokers reviewing a carrier's explanation of past violations.
Step 1: Review the Carrier's SMS Profile
Open the FMCSA SMS website and use the appropriate authorized account to review the company's available information.
Check the BASIC categories, inspection records, violations, and dates.
Look for repeated findings.
For example:
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Multiple brake violations may indicate a maintenance control problem.
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Repeated speeding violations may indicate a driving behavior or supervision problem.
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Hours-of-service violations may point to dispatch planning or recordkeeping issues.
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Driver Fitness violations may indicate problems with qualification checks.
Review the underlying inspection reports.
A useful corrective plan identifies the actual requirement involved, the responsible employee, and the action needed.
For a small carrier, this can be maintained in a straightforward compliance log.
There is no benefit in creating a complicated tracking system if no one checks whether the problems were corrected.
Step 2: Correct Unsafe Driving and Hours-of-Service Problems
For Unsafe Driving violations, examine the behavior that led to the findings.
A company with repeated speeding violations may need targeted coaching, stronger supervision, or changes to dispatch expectations.
Review available records and speak with the drivers involved.
Document corrective action.
For Hours-of-Service Compliance, check the schedules assigned to drivers.
Confirm that the dispatch plan allows drivers to meet applicable driving, duty, and rest requirements.
Review electronic logging device procedures and duty-status records.
Train employees on recurring errors.
If a driver repeatedly exceeds driving limits because dispatch schedules are unrealistic, the scheduling process must change.
Correcting individual logs without addressing the underlying cause leaves the same problem in place.
Dispatchers should understand that promising an aggressive delivery time does not remove the driver's legal obligations.
Step 3: Strengthen Driver Qualification and Testing Controls
Driver Fitness problems may involve licensing, medical certification, endorsements, or required documentation.
Review the company's driver qualification procedures.
Check that the appropriate records are current before drivers are assigned.
If particular loads require additional qualifications, verify those requirements for the actual driver.
For Controlled Substances/Alcohol concerns, review the applicable testing program and eligibility procedures.
Follow relevant Clearinghouse requirements and ensure prohibited drivers are not performing safety-sensitive duties.
A carrier should not wait for another roadside inspection to discover that a qualification or compliance record is missing.
Assign responsibility for reviewing the required information before dispatch.
For smaller operations, a recurring calendar review and a clear pre-assignment checklist may be sufficient to prevent avoidable administrative lapses.
Step 4: Fix Vehicle Maintenance and Cargo Securement Issues
Vehicle Maintenance problems often require changes that extend beyond one repair.
Start by reviewing the violations.
Group them by type.
If inspectors repeatedly report lighting defects, examine pre-trip inspections and repair follow-up.
If brake problems recur, review inspection procedures, maintenance records, and the process used to remove defective equipment from service.
A practical review should include:
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Identify recurring violations.
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Review the affected equipment.
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Determine why defects were not corrected earlier.
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Assign responsibility for repairs.
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Confirm that required repairs were completed.
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Keep applicable maintenance records.
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Review later inspections for repeated problems.
Cargo securement also deserves attention.
Drivers should understand the requirements relevant to the commodities and equipment they operate.
A flatbed transporting machinery may require a different securement arrangement from a dry van carrying palletized freight.
Training should reflect the carrier's actual operations.
For a broker, evidence of corrective action may help explain older maintenance findings.
It does not replace confirmation that the specific equipment assigned to a load is suitable.
Step 5: Review Hazardous Materials Compliance
Carriers transporting regulated hazardous materials must follow the requirements relevant to the materials and operation.
Review the types of violations that appear in inspection records.
Problems may involve:
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Shipping paper accuracy
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Placarding
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Marking and labeling
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Packaging requirements
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Loading procedures
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Employee training
If documentation errors recur, investigate the process used to prepare and review shipping papers.
If placarding violations appear, confirm that responsible employees understand when particular placards are required.
For dispatchers, the review should begin before accepting the shipment.
Determine which hazardous materials requirements apply and confirm that the carrier, driver, equipment, and documentation are suitable.
Do not assume that experience with ordinary freight establishes qualification for every regulated hazardous materials movement.
Step 6: Use the DataQs System When Records Are Incorrect
Safety data can contain errors.
FMCSA provides the DataQs system for requesting review of certain reported safety information.
For example, a carrier may believe an inspection report contains an incorrect vehicle identifier or another material reporting error.
The carrier should identify the specific issue and collect supporting documentation.
Depending on the request, useful materials may include:
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The inspection report
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Repair documentation
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Relevant court records
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Business or vehicle identification records
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Other evidence required by the review process
To submit a request, access DataQs through the appropriate FMCSA Portal account.
Select the relevant request category and follow the system's instructions.
A request does not automatically remove a violation.
The responsible agency reviews the evidence and determines whether a correction is appropriate.
As of September 18, 2026, state DataQs review procedures include an initial review and possible reconsideration and final review stages.
The applicable process depends on the type of request.
Crash preventability requests have their own program requirements.
Use DataQs to correct inaccurate records, not simply to dispute valid violations because they affect a percentile.
Step 7: Monitor Results and Keep Improving
SMS updates monthly, but operational improvements may take longer to appear in the percentile.
Older valid violations can remain within the rolling measurement period.
A carrier may repair equipment, retrain drivers, and improve dispatch procedures while the previous findings continue to influence the calculation.
Track both the SMS results and the actual operating improvements.
Useful internal measures include:
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Repeated inspection violation types
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Open safety-related repairs
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Completed corrective actions
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Driver qualification problems
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Hours-of-service violations
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New roadside inspection results
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Recurring cargo securement issues
Review these records regularly.
If the company continues to receive the same violations, revisit the corrective procedure.
For example, repeated lighting defects after driver training may indicate a repair management problem rather than a training problem.
A lower percentile may eventually reflect improved performance, but the immediate objective should be preventing the next violation.
For brokers reviewing carrier safety information, the same principle applies.
Ask what changed after the reported violations.
Examine available supporting information.
Then apply the brokerage's selection standards consistently.
A carrier's assurance that the problem has been fixed is useful context, but it should not be the only evidence considered.
The practical approach is to use CSA information as a starting point for specific questions. Identify the relevant BASIC, examine the recorded events, check official operating restrictions separately, and document the decision. Carriers should focus on correcting the practices that generate violations rather than chasing a single number.
FAQ
What is a CSA score in trucking?
A CSA score is an informal term for safety-performance measures and percentile rankings used in FMCSA's Compliance, Safety, Accountability program. The Safety Measurement System evaluates seven BASIC categories using available inspection, crash, and investigation data. FMCSA does not assign one overall numeric CSA score to a motor carrier.
How are CSA BASIC scores calculated?
SMS considers qualifying violations and crashes, applies factors such as severity and recency, and adjusts measures for relevant operating exposure. It then compares carriers within appropriate safety-event groups to calculate percentile rankings when sufficient data is available. The on-road performance calculations generally use a rolling 24-month period.
What is considered a bad CSA score?
A higher BASIC percentile indicates worse relative performance, and a result meeting an applicable FMCSA intervention threshold may lead to additional regulatory attention. For general property carriers, the thresholds include the 65th percentile for Unsafe Driving and Hours-of-Service Compliance and the 80th percentile for Vehicle Maintenance. A high percentile is not automatically an Unsatisfactory federal safety rating or an out-of-service order.
Can freight brokers view carrier CSA scores?
Freight brokers can access public SMS information, including selected BASIC percentiles and available inspection, violation, and crash records. The Crash Indicator and Hazardous Materials Compliance percentiles are not publicly displayed. Brokers should review official safety ratings, operating authority, and any applicable restrictions separately.
How often do FMCSA safety scores update?
FMCSA updates SMS results monthly. The calculations generally use a rolling 24-month period of relevant inspection and crash data, so percentiles can change as new information enters the system and older events lose weight or leave the measurement period. Official federal safety ratings are separate determinations and are not automatically reassigned with each monthly SMS update.
