How Long Do CSA Violations Stay on Your Record?
Every CSA violation has a lifespan. FMCSA uses a 24-month rolling window with a time-weighting system that makes recent violations hit three times harder than older ones. Understanding how this decay system works helps you predict when your scores will improve, plan compliance investments strategically, and know exactly when bad inspections stop hurting you.
24 Months
Total Rolling Window
3x Weight
Violations 0-6 Months
2x Weight
Violations 6-12 Months
1x Weight
Violations 12-24 Months
O Trucking Editorial Team
Trucking Industry Experts
Fact-Checked by O Trucking Compliance Team
5+ years helping carriers track and manage CSA violation timelines
This article was written by the O Trucking editorial team with 9+ years of combined trucking industry experience. Learn more about us.
O TruckingHow Long CSA Violations Last
The 24-Month Rolling Window Explained
FMCSA's Safety Measurement System evaluates your carrier's safety performance using the most recent 24 months of inspection, violation, and crash data. This is a rolling window, meaning that every month, the oldest month of data drops off and the newest month of data is added. The window is always looking at the most current two-year period.
Here is how the window works in practice: if you received a violation on March 15, 2024, that violation would be part of your active CSA profile until the monthly SMS update that occurs after March 15, 2026. At that point, it falls outside the 24-month window and is no longer included in your BASIC percentile calculation.
The rolling window means your CSA score is always changing. Even without any new inspections, your score can improve month over month simply because old violations are aging into lower time-weight periods or dropping off entirely. Conversely, a single bad inspection can cause a significant score spike because new violations enter the window with the highest possible time weight.
The Window Applies to All BASICs
Time-Weighting: The 3x, 2x, 1x System
Not all violations within the 24-month window carry equal weight. FMCSA applies a time-weighting multiplier that makes recent violations count significantly more than older ones. This system reflects the principle that recent safety performance is a better predictor of current risk than older data.
0 to 6 Months (Triple Weight)
Highest impact period
Violations in this window are multiplied by 3 in the BASIC score calculation. A violation with a severity weight of 5 that occurred last month has an effective score contribution of 15 (5 x 3). This is the period where a single bad inspection can cause the most dramatic score increase. If you just received a violation, its maximum scoring impact is right now.
6 to 12 Months (Double Weight)
Moderate impact period
When a violation crosses the 6-month mark, its time weight drops from 3 to 2. That same severity-5 violation now contributes 10 points instead of 15 (5 x 2). This automatic reduction means your score should naturally improve somewhat around the 6-month mark after a bad inspection, even without any corrective action. However, the violation is still having a meaningful impact on your BASIC percentile.
12 to 24 Months (Standard Weight)
Lowest impact before drop-off
After 12 months, the time weight drops to 1. The severity-5 violation now contributes just 5 points (5 x 1), one-third of its original scoring impact. At this stage, the violation is still on your record and still being counted, but its influence on your percentile is substantially reduced. When the violation passes the 24-month mark, it drops off entirely.
Track Your Violation Timeline
Severity Weights for Different Violations
In addition to time weights, each violation carries a severity weight that reflects how dangerous the violation is. Severity weights range from 1 (minor) to 10 (critical). The total scoring impact of a violation equals its severity weight multiplied by its time weight.
FMCSA groups violations within each BASIC category by type and assigns severity weights based on the safety risk they represent. The FMCSA SMS methodology document publishes complete severity tables for every violation code.
| Violation Example | BASIC | Severity | Score at 3x | Score at 1x |
|---|---|---|---|---|
| Reckless driving | Unsafe Driving | 10 | 30 | 10 |
| Speeding 15+ mph over | Unsafe Driving | 8 | 24 | 8 |
| Speeding 6-10 mph over | Unsafe Driving | 4 | 12 | 4 |
| Brakes out of adjustment (OOS) | Vehicle Maint. | 8 | 24 | 8 |
| Inoperative turn signal | Vehicle Maint. | 3 | 9 | 3 |
| Driving beyond 14-hr limit | HOS | 7 | 21 | 7 |
| Log form and manner violation | HOS | 2 | 6 | 2 |
OOS Violations Carry Extra Weight
How Violations Age Off Your Record
The aging process is automatic and requires no action from you. Each month when FMCSA runs the SMS update cycle (typically the last week of the month), violations that have passed their 24-month anniversary are removed from the active calculation window.
Here is a practical timeline showing how a single high-severity violation (severity weight 8) impacts your score over its 24-month lifespan:
| Time Period | Time Weight | Score Contribution | % of Peak Impact |
|---|---|---|---|
| Month 1-6 | 3x | 24 points | 100% |
| Month 7-12 | 2x | 16 points | 67% |
| Month 13-24 | 1x | 8 points | 33% |
| Month 25+ | 0x | 0 points | Dropped off |
This decay pattern means the worst of the scoring damage from any single violation is over after 6 months, and the majority of the impact is gone after 12 months. If you can maintain a clean record for 6 months after a bad inspection, you will see meaningful score improvement as the violation moves from the 3x to the 2x time period.
Use the 4-6 Week Data Lag to Your Advantage
Crash Records vs Inspection Violations
Crashes and inspection violations follow the same 24-month rolling window but behave somewhat differently in the scoring system. Understanding these differences is important for managing your overall CSA profile.
Crash Indicator BASIC
DOT-reportable crashes feed into the Crash Indicator BASIC. A crash is DOT-reportable if it involves a fatality, an injury requiring immediate medical treatment, or a vehicle towed from the scene. Crash records use the same 24-month window and time weights. However, crashes tend to carry very high severity weights, and even a single DOT-reportable crash can significantly elevate your Crash Indicator percentile, especially for smaller carriers.
Inspection Violations (Non-Crash)
Violations discovered during roadside inspections feed into the relevant BASICs based on the violation code. A brake violation goes to Vehicle Maintenance, a speeding citation goes to Unsafe Driving, a logbook violation goes to HOS Compliance, and so on. Multiple violations from a single inspection are each scored individually with their own severity weights, all sharing the same inspection date for time-weighting purposes.
Crash Preventability Determinations
FMCSA's Crash Preventability Determination Program allows carriers to request a review of certain crash types (such as being rear-ended or struck by a wrong-way driver). If FMCSA determines the crash was not preventable, it is excluded from the Crash Indicator BASIC calculation. This program does not apply to all crash types, but it provides a path to remove non-fault crashes from your score.
DataQs: Removing Incorrect Violations
You do not have to wait 24 months for an incorrect violation to age off. The FMCSA DataQs system provides a formal process for challenging violations you believe are wrong. A successful challenge removes or corrects the violation immediately, providing instant relief to your BASIC percentile rather than waiting for the natural decay.
Common grounds for a DataQs challenge include: violation attributed to the wrong carrier or driver, incorrect violation code applied by the inspector, equipment that was re-inspected and found compliant after the initial citation, factual errors in the inspection report (wrong vehicle, wrong date, wrong location), and duplicate inspection records.
Review Your Inspection Details
Log into the FMCSA portal and examine each violation on your record. Look for discrepancies between what happened and what was recorded. Compare violation codes against the actual conditions documented in the inspection report.
File Through DataQs Portal
Submit your challenge at dataqs.fmcsa.dot.gov with supporting documentation. Include repair receipts, re-inspection reports, photographs, and any other evidence that supports your challenge. The more documentation you provide, the stronger your case.
Wait for State Review (30-90 Days)
The state agency that conducted the original inspection reviews your challenge. Processing times vary by state, typically ranging from 30 to 90 days. You can check the status of your challenge through the DataQs portal.
Time Your DataQs Challenges Before Insurance Renewal
Strategic Timing for Compliance Improvements
Understanding the time-weighting system allows you to make strategic decisions about when to invest in compliance improvements for maximum return:
Act Within the First 6 Months
The 0-6 month period is when violations hurt the most, but it is also when corrective action has the greatest long-term benefit. Fixing the root cause of violations immediately prevents new violations from entering the 3x window, allowing natural decay to start improving your scores. Waiting 6 months to start corrective action means you have already absorbed the worst of the first violation's impact and risk accumulating additional violations in the meantime.
Plan Insurance Shopping Around Drop-Off Dates
If you know several high-severity violations will drop off your record around a certain date, time your insurance shopping to occur shortly after that drop-off. The improvement in your BASIC percentiles will be reflected in the quotes you receive. Even a single month can make a meaningful difference if a major violation ages off between when you request quotes.
Stack Clean Inspections During Recovery
While waiting for bad violations to age off, actively seek clean inspections. Clean inspections (those with no violations) increase your total inspection count without adding violation points, which dilutes your violation rate and improves your percentile. Ensure your equipment is in top condition before running through states with active inspection programs.
Build a Violation Tracking Spreadsheet
How Our Team Researched This Guide
This guide was developed using FMCSA's official SMS methodology documentation, which details the exact time-weighting formulas and severity tables used to calculate BASIC percentiles. We cross-referenced the methodology with real carrier SMS data to verify the practical impact of the time decay system and confirm that the published formulas match actual scoring behavior. The DataQs information was verified against FMCSA's DataQs system documentation and published challenge processing guidelines.
O Trucking Editorial Team
Trucking Industry Experts
Fact-Checked by O Trucking Compliance Team
5+ years tracking CSA violation lifecycles and advising carriers on score improvement timing
This article was written by the O Trucking editorial team with 9+ years of combined trucking industry experience. Learn more about us.
Frequently Asked Questions
How long do CSA violations stay on record?
CSA violations remain in the FMCSA Safety Measurement System for 24 months from the date of the inspection. After 24 months, the violation drops off the rolling window and no longer affects your BASIC percentile calculations. However, the underlying inspection record remains in the FMCSA database permanently as historical data, even though it no longer impacts your active CSA score.
Do recent violations count more than older ones?
Yes. FMCSA uses a three-tier time-weighting system. Violations from the most recent 0-6 months receive a time weight of 3 (triple impact). Violations from 6-12 months ago receive a weight of 2 (double impact). Violations from 12-24 months ago receive a weight of 1 (standard impact). This means a violation committed yesterday has three times the scoring impact of an identical violation from 18 months ago.
When do violations drop off my CSA record?
Violations drop off the active 24-month rolling window exactly 24 months after the inspection date. FMCSA updates SMS data monthly, typically in the last week of each month. When the monthly update runs and a violation has passed its 24-month mark, it is removed from the BASIC percentile calculation. You can track when specific violations will age off by noting the inspection date and adding 24 months.
Can I dispute a CSA violation?
Yes, through the FMCSA DataQs system at dataqs.fmcsa.dot.gov. You can challenge violations you believe are incorrect, were coded improperly, or resulted from errors in the inspection process. Common challengeable items include violations attributed to the wrong carrier, incorrect violation codes, violations for equipment that passed a subsequent re-inspection, and factual errors. The reviewing state agency will investigate and either uphold, modify, or remove the violation. Processing typically takes 30-90 days.
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