At a Glance: A CSA score is a safety percentile the Federal Motor Carrier Safety Administration assigns to a motor carrier, not to you. The Safety Measurement System sorts roadside inspection results, safety violations, and crash reports from the past 24 months into seven Behavior Analysis and Safety Improvement Categories. Each gets a percentile from 0 to 100, and higher is worse. Individual drivers do not receive a CSA score, but every violation you collect feeds for your company’s CSA score and your own Pre-Employment Screening Program record.
Starting a career in the trucking industry means learning a lot of rules at once, and the CSA program is one of the systems that follows you the longest, even though the score itself belongs to your carrier. Your inspection history still shapes your job prospects, your carrier’s insurance premiums, and how often you get pulled in at a scale. This guide covers what the CSA program measures, how the math works, what enforcement agencies can actually see about you personally, and what you can do on the road to keep your own record clean.
Understanding the CSA Program
What is CSA?
CSA stands for Compliance, Safety, and Accountability. It is the safety program the FMCSA uses to identify motor carriers that pose the highest risk of a crash, based on their safety violations and history. The agency then prioritizes its enforcement resources toward those carriers.
Why the CSA program was created
Before CSA launched in 2010, oversight leaned mostly on a compliance review that happened infrequently. A safety rating could sit unchanged for years while a carrier’s actual performance slipped, and the FMCSA had no practical way to monitor the millions of commercial vehicles on American roads between visits.
The CSA program closed that gap with continuous monitoring. Data from every roadside inspection and crash report feeds an ongoing picture of safety performance instead of a snapshot taken once every few years.
How CSA scores are calculated
The Safety Measurement System, or SMS, is the tool that does the work. It pulls in three kinds of data: violations written during a roadside inspection, state-reported crash data, and findings from a compliance review. It refreshes monthly across a rolling 24-month window, so recent events carry more weight and old violations eventually age off.
Those violations roll up into a raw measure, which the FMCSA compares against a peer group of carriers with a similar number of inspections and converts into a percentile from 0 to 100. This trips up new commercial drivers because most scores work the other way. A percentile of 80 in vehicle maintenance does not mean the carrier scored 80 out of 100. It means its record is worse than 80 percent of comparable carriers. Low is the goal.
Weighting of violations
Not every citation counts the same. The FMCSA weights each violation by how strongly it correlates with crash risk, so a brake defect carries more than a paperwork error. Violations are also weighted by time, since something from last month counts for more than something from twenty months ago.
Drivers often talk about picking up CSA points after a bad stop. Nobody is literally assigned points, but the idea holds: each violation carries a weight that feeds the carrier’s measure.
The Seven BASIC Categories
Behavior Analysis and Safety Improvement Categories group violations by the kind of safety issue they represent. Every traffic violation written on an inspection report lands in one of these seven buckets.
| BASIC category | What lands in it |
| Unsafe Driving | Speeding, improper lane changes, following too closely, seat belt violations, handheld phone use, reckless driving |
| Crash Indicator | State-reported crash reports over the past 24 months, weighted by severity and recency, including crashes that were not your fault |
| Hours-of-Service Compliance | Log and electronic logging device violations, driving past the 11-hour or 14-hour limits, a missed break |
| Vehicle Maintenance | Brakes, tires, lighting, securement, and other mechanical defects found at inspection |
| Controlled Substances and Alcohol | Use or possession of alcohol or drugs while on duty |
| Hazardous Materials Compliance | Placarding, packaging, and paperwork problems on placardable hazardous materials loads |
| Driver Fitness | Expired medical certificates, wrong license class or endorsements, incomplete driver qualification files |
Intervention thresholds
Crossing an intervention threshold flags the carrier for attention. Per the SMS methodology, general carriers are held to these levels:
- 65th percentile for Unsafe Driving, Crash Indicator, and Hours-of-Service Compliance
- 80th percentile for Vehicle Maintenance, Controlled Substances and Alcohol, Driver Fitness, and Hazardous Materials Compliance
The first three sit lower because the FMCSA found they track most closely with crash risk. Passenger and placardable hazardous materials carriers face stricter thresholds still.
Do Drivers Have Their Own CSA Score?
No, and this is the biggest piece of misinformation floating around truck stops. The FMCSA has addressed it directly. SMS percentiles belong to motor carriers, not to people.
A Driver Safety Measurement System does sit inside the SMS, but it is a tool for enforcement staff during a carrier investigation; neither drivers nor their employers can see it. The FMCSA has also said it does not validate the driver scorecards some vendors sell.
What the Pre-Employment Screening Program shows
What you do have is a Pre-Employment Screening Program record. A PSP report holds three years of roadside inspection history and five years of crash data, and it attaches no score or rating of any kind. It is a record, not a grade. Carriers pull it during hiring with your written consent, and it is accessible to drivers at any time.
How CSA Scores Affect Trucking Companies and Drivers
Impact on the company
A poor safety record creates ripple effects across a trucking company. Effects include:
- Customers and brokers choosing other carriers after reviewing safety scores
- Increased regulatory attention and more frequent roadside inspections
- Higher operational costs and delays from added compliance work
- Compliance reviews, safety audits, and, in severe cases, fines or operating restrictions
How truck drivers are affected
You do not carry a personal percentile, but your inspection history still follows you. Recruiters read PSP reports, and a string of hours-of-service or unsafe driving entries closes doors before anyone calls your references. Every violation you collect also rolls into the company’s CSA score, and at a small carrier running few inspections, one rough stop moves the percentile noticeably. If you hold your own DOT authority, you are the motor carrier, which means your inspections are your CSA score, not just a driver-level record.
Effect on insurance premiums
Underwriters review carrier safety data closely when setting rates. A poor safety record raises insurance costs, while a clean one can qualify a fleet for lower insurance premiums. For fleet managers, fewer violations show up as fewer DOT audits and lower insurance rates across the whole operation.
Tips to Improve Your CSA Score
Most of what moves these numbers happens in the ten minutes before you roll and the ten after.
- Follow the regulations that get cited most. Hours-of-service, FMCSA vehicle standards, and inspection requirements account for the bulk of roadside violations.
- Run a real pre-trip and post-trip inspection. A thorough inspection catches brake, tire, and lighting problems in the yard, where they are considered maintenance rather than a violation.
- Keep the logs honest. Hours-of-Service sits at the stricter 65th percentile, so log errors cost more than drivers expect.
- Keep your paperwork current. An expired medical card is a driver fitness violation, and it is avoidable.
- Treat clean inspections as wins. An inspection with no violations still enters the system and pulls the percentile down.
- Use the technology you already have. Telematics and electronic logging devices flag hard braking, speeding, and hours problems before an officer does.
- Challenge bad data. If something on your record is wrong, file through DataQs promptly, since recent entries carry the most weight.
TRUX Parking: Supporting Your Safety Record
Most safety violations trace back to something ordinary. A driver too tired to catch a soft tire. A pre-trip rushed in the dark because the only open space was a shoulder off the ramp. A missed break because there was nowhere to stop.
Where you park shapes all three. A lit, gated lot gives you room to walk the truck and a quiet place to take your hours. TRUX Parking offers professional drivers electronic gate access, 24/7 security cameras, industrial lighting, perimeter fencing, and wide lanes sized for a full commercial vehicle. Daily and monthly plans carry no contracts and no hidden fees, and online booking sends instant access instructions.