What Is the FMCSA CSA Program? A 2026 Guide for Crash Victims
- Jun 13
- 15 min read
Last Reviewed: June 12, 2026
Publisher: PI Law News
Author: Peter Geisheker
This article is for informational purposes only and does not constitute legal or medical advice. If you have been injured in a truck accident, consult a licensed attorney in your state and seek care from a qualified medical provider.
The FMCSA Compliance, Safety, Accountability (CSA) program is the federal enforcement system that scores every interstate motor carrier on safety. It converts 24 months of roadside inspections, crashes, and investigations into percentile rankings across seven BASIC categories, then uses those scores to target unsafe carriers and to expose a company's safety record in your truck accident case.
Key Facts at a Glance
CSA launched in 2010 and replaced FMCSA's older SafeStat system as the agency's primary data-driven safety enforcement program.
The Safety Measurement System (SMS) scores carriers as a percentile from 0 to 100 in each category, updated monthly, where higher is worse.
Scores are built from inspections, violations, and crashes over the most recent 24 months, weighted by severity and how recently each event occurred.
There were roughly 5,472 fatalities in crashes involving large trucks in 2023, an 8.3% decline from 2022 per NHTSA's Fatality Analysis Reporting System.
Most BASIC percentiles have been hidden from public view since the 2015 FAST Act, but the underlying inspection and crash data remains discoverable in litigation.
FMCSA is rewriting the SMS; carriers can preview the new methodology on the CSA Prioritization Preview site while the rule remains under review.
If a truck crash injured you or someone you love, a carrier's CSA history can become powerful evidence. Get a free case evaluation with a truck accident attorney to learn what your case is worth.
After a serious truck crash, the driver who hit you is rarely the deepest pocket; the trucking company behind that driver is. One of the first places an experienced truck accident lawyer looks is the company's federal safety profile, and the centerpiece of that profile is its CSA record.
CSA stands for Compliance, Safety, Accountability. It is the Federal Motor Carrier Safety Administration's nationwide program for measuring, ranking, and intervening with motor carriers based on their on-road safety performance. With roughly 5,472 large-truck-involved fatalities in 2023 alone, the stakes the program is meant to address are enormous.
For carriers, a bad CSA score means warning letters, audits, and higher insurance premiums. For an injured victim, the same data can reveal a documented pattern of unsafe behavior that the company knew about and ignored. This guide explains exactly how the program works and how its numbers translate into leverage in a truck accident claim.
The distinction the program draws is important. A single bad driver can happen to any fleet, but a carrier sitting in the worst percentiles month after month is making choices about hiring, training, dispatching, and maintenance. CSA data lets an attorney move the focus from the moment of impact back to those choices, which is where the real responsibility, and the real insurance coverage, usually lies.
In this article:
What the FMCSA CSA program is
How the Safety Measurement System calculates a score
The seven BASIC categories
What CSA intervention thresholds mean
Which CSA data is public and which is hidden
How truck accident lawyers use CSA scores as evidence
Whether CSA scores can support punitive damages
The Pre-Employment Screening Program (PSP)
How FMCSA is redesigning the SMS
The limits of CSA scores in your case
What Is the FMCSA Compliance, Safety, Accountability (CSA) Program?
CSA is FMCSA's data-driven safety compliance and enforcement program that monitors every carrier registered with the agency throughout the life of its business. It exists to identify high-risk carriers, prioritize them for intervention, and reduce large-truck and bus crashes.
Launched in 2010, CSA replaced the agency's earlier SafeStat model. It rests on three core components: the Safety Measurement System (SMS) that quantifies performance, a tiered set of interventions that escalate from warning letters to full on-site investigations, and a Safety Fitness Determination process governed by 49 CFR Part 385.
The program reaches motor carriers subject to the Federal Motor Carrier Safety Regulations: interstate carriers of passengers or property and intrastate carriers of hazardous materials. FMCSA's authority to rate carrier safety fitness comes from 49 U.S.C. § 31144. The result is a federal scorecard that follows a trucking company everywhere it operates.
It helps to separate CSA from a formal safety rating. A carrier's safety rating, satisfactory, conditional, or unsatisfactory, comes out of a compliance review and is a discrete legal status. CSA percentiles, by contrast, update continuously and are best understood as an early-warning and prioritization layer that sits on top of that rating system. A carrier can hold a satisfactory rating while still posting alarming BASIC percentiles, and that gap is often where a safety problem hides.
How Does the Safety Measurement System (SMS) Calculate a Carrier's Score?
The SMS converts raw safety events into a relative percentile. It gathers data from roadside inspections, documented violations, and DOT-reportable crashes over the most recent 24 months, then ranks each carrier against a peer group of similarly inspected carriers.
Not every violation counts the same. The SMS methodology assigns each violation a severity weight tied to its crash risk and a time weight that gives recent events more influence than older ones. Exposure matters too: a company with two violations in three inspections looks far worse than one with two violations in nine.
The output is a percentile from 0 to 100 in each category, updated monthly, where 100 is the worst-performing carrier in the peer group. A carrier scored at 90 in Vehicle Maintenance is performing worse than 90% of comparable carriers. The system also applies data-sufficiency thresholds, so a carrier is not scored in a category until it has accumulated enough inspections with violations, generally five over the 24-month window, to rank reliably.
Peer grouping is central to understanding the number. FMCSA sorts carriers into safety event groups based on how many relevant inspections or crashes they have, then ranks each carrier only against others in its group. That design means a percentile is relative, not absolute: a mid-size fleet and an owner-operator with identical violations can post very different percentiles because they are measured against different peers.
By the numbers: CSA percentiles draw on 24 months of inspection and crash data and refresh every month, so a violation recorded today can shape a carrier's safety profile, and its exposure in your case, for two full years.
What Are the Seven BASIC Categories?
The SMS organizes safety data into seven Behavior Analysis and Safety Improvement Categories, known as BASICs. Each is scored independently, because a carrier can be excellent in one area and dangerous in another.
The seven BASICs are Unsafe Driving, Crash Indicator, Hours-of-Service (HOS) Compliance, Vehicle Maintenance, Controlled Substances/Alcohol, Hazardous Materials (HM) Compliance, and Driver Fitness. The table below shows what each measures, its general intervention threshold for property carriers, and whether the public can see it.
BASIC Category | What It Measures | Intervention Threshold (general freight) | Publicly Visible? |
Speeding, reckless driving, improper lane changes, texting, no seatbelt | 65% | Yes | |
Frequency and severity of DOT-reportable crashes (counted regardless of fault) | 65% | No | |
Driving beyond hours limits, falsified logs, ELD and break violations | 65% | Yes | |
Brakes, tires, lights, defective parts, inspection and repair failures | 80% | Yes | |
Use or possession of drugs or alcohol while operating a commercial vehicle | 80% | Yes | |
Leaking containers, improper hazardous-materials packaging and placarding | 80% | No | |
Invalid or improper license, medical-qualification and DQ-file failures | 80% | Yes |
FMCSA has acknowledged that not every BASIC correlates equally with future crashes, but it has also documented that non-compliance in one BASIC tends to predict non-compliance in others. That pattern is part of why a multi-BASIC problem is so persuasive to a jury.
What Do CSA Intervention Thresholds Mean?
An intervention threshold is the percentile at which FMCSA starts paying attention. Cross it, and the carrier moves onto the agency's priority list for enforcement.
Thresholds are not uniform, because each BASIC carries a different crash risk. For general property carriers, Unsafe Driving, Crash Indicator, and HOS Compliance use a 65% threshold, while Vehicle Maintenance, Controlled Substances/Alcohol, HM Compliance, and Driver Fitness use 80%. Passenger carriers and hazardous-materials haulers face lower thresholds because the consequences of their failures are graver.
Once a carrier exceeds a threshold, FMCSA's interventions escalate: a warning letter first, then targeted roadside inspections, then off-site or on-site investigations, and ultimately a compliance review that can end in fines or an unsatisfactory safety rating. Each step in that ladder generates a record, and every record is a potential exhibit in your case.
The escalation also reflects a deliberate prioritization of resources. FMCSA cannot audit every carrier, so it directs investigators toward companies whose percentiles signal the highest crash risk. When a carrier has been flagged, warned, and investigated and still appears in the crash that injured you, that documented sequence of agency attention is precisely what defeats a claim that the company had no way to see the danger coming.
Which CSA Data Is Public, and Which Is Hidden?
Some of it is public and some is not. Five of the seven BASIC percentiles appear on FMCSA's SMS website; the Crash Indicator and HM Compliance percentiles are restricted to the carrier and enforcement staff.
The restriction traces to the December 2015 FAST Act, which directed FMCSA to remove most property-carrier scores and percentiles from public display pending a National Academy of Sciences review of the methodology. What survived in public view is the underlying inspection and violation detail you can pull from a carrier's SAFER company snapshot.
This distinction matters in litigation. Even where a percentile is hidden, the raw inspection reports, crash records, and FMCSA warning letters are obtainable through discovery, and they often tell a more complete story than the score alone. Understanding how federal trucking regulations affect your truck accident claim is the key to knowing what to demand.
It is also worth noting why the percentiles were pulled from public view in the first place. The methodology faced criticism that peer grouping and uneven state enforcement could distort a carrier's ranking, and the FAST Act paused public display while the National Academy of Sciences studied those concerns. The data was never deleted; it was reclassified. For an injured plaintiff, that history is useful context, because a carrier cannot credibly argue its safety record is meaningless while that same record drives its insurance premiums and FMCSA's own enforcement decisions every month.
A hidden percentile is not a hidden record. The inspections, citations, and crash reports behind a carrier's CSA profile remain fully discoverable, and they frequently reveal a pattern the company would rather a jury never see.
How Do Truck Accident Lawyers Use CSA Scores as Evidence?
Plaintiff attorneys use CSA data to shift the story from one driver's mistake to a company's pattern of unsafe behavior. When a carrier sits in the worst percentiles for safety, that is FMCSA's own record working against it.
The data supports several theories. High percentiles across multiple BASICs, combined with FMCSA warning letters and prior compliance reviews, help establish that a carrier had notice of ongoing safety problems and chose not to fix them. A specific BASIC can corroborate the crash mechanism: HOS violations pair with electronic logging device data to prove driver fatigue, and a regulatory violation can anchor a negligence per se argument.
Defense lawyers fight back by framing the crash as an isolated driver error rather than a company failure, and by attacking the score's reliability. Knowing how trucking-company defense lawyers fight to reduce your settlement is half the battle; the CSA record is one of the tools that defeats the isolated-incident defense.
CSA data also drives early case strategy. Because the SMS refreshes monthly and inspection records can be purged on a carrier's own retention schedule, an attorney moves fast to preserve the company's safety profile, send a spoliation letter, and capture the percentiles as they stood at the time of the crash. That snapshot, paired with the carrier's driver-qualification file and maintenance logs, lets a safety expert connect a specific regulatory failure to the collision rather than relying on the number alone.
Pulling and interpreting a carrier's federal safety data takes specialized experience. Speak with a personal injury attorney who handles commercial trucking cases to protect your claim.
Can CSA Scores Support Punitive Damages?
Yes, in the right case. A documented pattern of ignored safety failures can elevate a claim from ordinary negligence to the conscious disregard that many states require for punitive, or exemplary, damages.
Where a carrier repeatedly exceeded intervention thresholds, received warning letters, and still failed to act, a plaintiff can argue the company knew its conduct created a substantial risk and proceeded anyway. Courts in states like Virginia have recognized that high SMS percentiles, paired with FMCSA warning letters and compliance reviews, can help support arguments of willful and wanton negligence.
Punitive exposure changes settlement dynamics dramatically, because it is not capped by ordinary compensatory limits in many jurisdictions and is generally excluded from a carrier's standard insurance coverage. That combination is exactly why CSA evidence is something defense teams work hard to keep out.
The question that moves a trucking case is rarely whether one driver erred. It is whether the company that put that driver on the road already knew, from its own federal safety record, that this day was coming.
What Is the Pre-Employment Screening Program (PSP)?
PSP is FMCSA's companion tool that lets carriers, and drivers, pull an individual driver's federal safety history before hiring. It is distinct from a carrier's CSA score but built from the same inspection and crash database.
A PSP report shows a driver's five-year crash history and three-year roadside inspection record, drawn from FMCSA's Motor Carrier Management Information System. Drivers can request their own record for a small fee. FMCSA's own analysis found that carriers using PSP in hiring reduced crash rates by an average of 8% and driver out-of-service rates by 17%.
PSP matters in litigation because it proves what a carrier could have known. If a company hired a driver with a documented history of violations without checking the available federal record, that omission supports a negligent-hiring claim independent of the driver's conduct in the crash itself.
The same logic extends to retention. A carrier that pulled a PSP report, saw a troubling record, and hired or kept the driver anyway has made an even more deliberate choice. Either way, the existence of an inexpensive, federally maintained screening tool removes the excuse that a dangerous driver's history was unknowable, which is exactly why these records are a priority target in discovery.
By the numbers: FMCSA found that carriers using PSP in their hiring decisions cut crash rates by about 8% and out-of-service rates by 17%, evidence that a company that skips the check ignored a proven safety tool.
How Is FMCSA Redesigning the SMS in 2025-2026?
FMCSA is in the middle of the most significant CSA overhaul since 2010, though the new methodology is not yet in force. The agency published its proposed redesign in the Federal Register in February 2023 and refined it after public comment.
The proposal renames the BASICs as compliance categories, consolidates and reorganizes violation groups, adds violations not previously scored, and replaces large percentile jumps with smoother median benchmarks. After a study by the National Academy of Sciences, FMCSA rejected an Item Response Theory model as too complex and instead refined the existing percentile approach, announcing further adjustments in November 2024.
Carriers can log into the CSA Prioritization Preview with their DOT number to see how the new rule would change their ratings. Critics, including the Owner-Operator Independent Drivers Association, argue the redesign still does not fix the system's structural flaws. For now, the current SMS remains the operative scoring system for both enforcement and litigation.
For a crash victim, the redesign is worth tracking but does not change today's playbook. Whatever the categories are eventually called, the engine will still rest on the same underlying inputs, inspections, violations, and crashes, and the historical data that matters to your case was recorded under the current methodology. An attorney captures the carrier's profile as it exists now and preserves the raw records that will remain relevant no matter how the scoring formula is relabeled.
What Are the Limits of CSA Scores in Your Case?
A CSA score is a starting point, not a verdict. FMCSA itself cautions that some BASICs do not strongly correlate with future crash rates, and the agency has never claimed the percentiles prove a specific crash was the carrier's fault.
Several limitations are worth understanding. Percentiles are comparative, not absolute, so they reflect a peer group rather than a fixed safety standard. State enforcement disparities mean a carrier's geography can inflate or deflate its numbers. The Crash Indicator counts crashes regardless of fault, so the raw figure can mislead. And because scores hinge on inspection volume, a carrier with few inspections may simply be unscored.
None of this makes CSA data unusable; it makes it one piece of a larger evidentiary picture. The strongest cases combine CSA history with hours-of-service violation evidence, maintenance records, ELD data, and crash reconstruction to show not just a bad score, but a specific safety failure that caused your injuries.
Think of the score as the index, not the book. It tells an investigator where to look, which BASIC is troubled, which time period to examine, which inspections to pull, but the persuasive evidence is the documented conduct underneath. A jury responds to a falsified logbook, a brake out of adjustment, or a driver hired despite a string of violations far more than to an abstract percentile, and CSA data is what leads an attorney to those concrete proofs.
How Can You Obtain a Carrier's CSA Record After a Truck Crash?
You start with the public data and then use the lawsuit to reach the rest. The public BASIC percentiles and inspection history are available immediately; the restricted records and internal documents come through formal discovery.
Anyone can pull a carrier's SAFER company snapshot using its USDOT or MC number to see its operating authority, fleet size, inspection summary, and crash totals. From there, an attorney issues preservation letters and discovery requests for the full driver-qualification file, the maintenance and inspection records under 49 CFR Part 396, hours-of-service logs, ELD data, and any FMCSA warning letters or compliance-review reports the carrier received.
Timing is everything. Carriers and their insurers often dispatch rapid-response teams to the scene within hours, and some records cycle off the SMS or out of a company's retention system within months. Acting quickly to lock down the federal safety trail is one of the clearest reasons to involve a truck accident lawyer early.
Frequently Asked Questions About the FMCSA CSA Program
What is a good CSA score?
A good CSA score is a low percentile. Because the SMS ranks carriers from 0 to 100 where higher is worse, a carrier scored at 15 in a category is safer than 85% of its peers. Any BASIC at or above its intervention threshold, generally 65% or 80%, is considered a problem that draws FMCSA attention.
How long do violations stay on a CSA score?
Violations remain in the Safety Measurement System for 24 months from the date of the inspection or crash. Recent events are weighted more heavily than older ones, so a violation's influence fades over the two-year window before it drops off entirely. Scores recalculate monthly as new data enters and old data ages out.
Can I see a trucking company's CSA score?
You can see most of it. Five of the seven BASIC percentiles are public on FMCSA's SMS website, and a carrier's inspection and crash detail is available through its SAFER company snapshot. The Crash Indicator and Hazardous Materials Compliance percentiles are restricted, but the underlying records behind them are discoverable in a lawsuit.
Does a CSA score affect a truck accident claim?
Yes. A poor CSA record can establish that a carrier had notice of ongoing safety problems, corroborate the cause of a crash, and support claims for negligent hiring or supervision. In serious cases it can help justify punitive damages. Discuss your case at no cost with an attorney who knows how to obtain and present this federal data.
How often are CSA scores updated?
FMCSA updates CSA scores monthly. Each update adds new inspections, violations, and crashes from the prior period and removes events that have aged past the 24-month window. That monthly cadence means a carrier's safety profile is a moving target that an attorney should capture promptly after a crash.
What is the difference between CSA and SMS?
CSA is the overall program; SMS is the scoring engine inside it. Compliance, Safety, Accountability is FMCSA's full enforcement framework, including interventions and safety-fitness determinations. The Safety Measurement System is the specific tool that turns inspection and crash data into the BASIC percentiles people commonly call CSA scores.
Who can access CSA scores?
Anyone can access the public BASIC percentiles and a carrier's inspection history through FMCSA's SMS and SAFER websites. Carriers can see their full profile, including restricted BASICs, by logging in with their DOT number and PIN. Enforcement agencies, insurers, brokers, and attorneys all routinely pull this data.
Can a CSA score be used in court?
CSA data is frequently used in truck accident litigation, though admissibility varies by jurisdiction and judge. Even where a raw percentile is challenged, the underlying inspection reports, crash records, and FMCSA correspondence behind the score are generally discoverable and admissible to show a carrier's notice and pattern of conduct.
Conclusion: Turning a Federal Score Into Leverage
The FMCSA CSA program was built to make trucking safer, but for an injured victim its real value is evidentiary. A carrier's BASIC percentiles, intervention history, and inspection record can transform a case from one driver's error into a documented story of corporate safety failure, the kind of story that drives full and fair compensation.
The data is time-sensitive and technical, and carriers and their insurers move quickly to control the narrative. The sooner a knowledgeable attorney pulls and preserves a carrier's CSA record, the stronger your position. Contact us for a free consultation to find an experienced truck accident lawyer near you.
References and Sources
Federal Motor Carrier Safety Administration, Compliance, Safety, Accountability (CSA) Program Overview (U.S. DOT).
FMCSA, Safety Measurement System (SMS) Methodology (U.S. DOT).
FMCSA, Revised Carrier Safety Measurement System, 88 Fed. Reg. (Feb. 15, 2023).
NHTSA, 2023 Data: Large Trucks, Fatality Analysis Reporting System (U.S. DOT).
49 U.S.C. § 31144: Safety fitness of owners and operators (Cornell Legal Information Institute).
49 CFR § 390.5: Definitions (Electronic Code of Federal Regulations).
49 CFR Part 385: Safety Fitness Procedures (Electronic Code of Federal Regulations).
FMCSA, Pre-Employment Screening Program (PSP) (U.S. DOT).
FMCSA, SAFER Company Snapshot (U.S. DOT).
FMCSA, CSA Prioritization Preview (U.S. DOT).
FAST Act, Pub. L. No. 114-94 (2015) (Congress.gov).
FleetOwner, FMCSA Tweaks Its Safety Measurement System Overhaul (2024).
Land Line Media, SMS Proposal Explained Through FMCSA Webinar (2023).
Mottley Law Firm, How FMCSA CSA Scores Impact Truck Accident Cases.
Foley Carrier Services, CSA Score and Insurance Rates (2026).
Editorial Standards and Review
This article was researched, written, and published by the editorial team at PI Law News. It was last reviewed on June 12, 2026.
Our editorial process prioritizes primary sources. Every statute, regulation, and statistic in this guide was verified against its original government source, including FMCSA's published SMS methodology, the Electronic Code of Federal Regulations, the Federal Register, and NHTSA's Fatality Analysis Reporting System. Secondary sources are used only to provide context and are identified by publication.
PI Law News follows a Zero-Hallucination Policy: we do not publish legal standards, case names, statutory citations, or statistics that we have not traced to a verifiable, authoritative source. CSA scores, thresholds, and methodology change over time, and the SMS redesign remains under review; readers should confirm current figures against FMCSA before relying on them. This article is general legal information, not legal advice for any specific case.
