Two Carriers Can Have the Same BASIC Score and One of Them Is Fine

Two carriers. Both interstate flatbed, both pulling steel coils through the Midwest. Both have an Unsafe Driving BASIC at the 74th percentile — alert territory, flagged identically in most vetting tools.

Here's what the score doesn't tell you: Carrier A got there with a cell phone violation (49 CFR § 392.80), one seat belt ticket (49 CFR § 392.16), and a warning for following distance on I-40. Carrier B got there with two consecutive speeding violations — 22 mph over in a construction zone in Ohio, then 19 mph over on the same corridor six weeks later. Both drivers were pulling 80,000 pounds.

I would tender a load to Carrier A. I would not call Carrier B back.

Same BASIC percentile. Very different carriers. And if all you looked at was the score, you'd treat them the same.

What a BASIC score actually is

The Behavior Analysis and Safety Improvement Categories (BASICs) are scored by measuring violation counts against miles driven or inspections, then weighting violations by severity. Every roadside inspection that results in a violation feeds one or more BASICs. The final BASIC percentile is a rank — it tells you where this carrier sits relative to other carriers who got inspected in the same time window.

The severity weights matter. FMCSA assigns higher severity weights to violations that more directly relate to crash risk. But even within a single BASIC, you can have violations that range from "bad paperwork" to "actively dangerous equipment." The BASIC score averages all of that together. It does not sort it for you.

The Unsafe Driving BASIC alone pulls from violations under § 392.2 (speeding, improper lane changes, failure to obey traffic control devices, reckless driving — all governed by state law), § 392.80 (hand-held mobile phone use), § 392.82 (texting while driving), and § 392.16 (seat belt). These are not the same violation. A driver who ran a red light doing 60 mph is not the same compliance profile as a driver who got a seat belt citation at a weigh station.

How to get past the score

When you pull a carrier on SAFER — go to https://safer.fmcsa.dot.gov and search by MC or DOT — you'll see the BASIC scores on the carrier's snapshot page. Most brokers stop there.

Don't stop there.

Click through to the "Inspections" tab. You'll get a list of every inspection the carrier has had in the last 24 months. Click into any individual inspection record and you'll see the exact violation codes that were written: the CFR section cited, the violation description, and whether it was driver or vehicle. This is the underlying data. This is what the BASIC score is summarizing.

You're not looking for a specific threshold. You're reading the pattern. Three inspections, all with the same § 392.80 cell phone violation, driver changing every time? Different signal than three inspections with § 393.47 brake adjustment violations on three different vehicles.

The first carrier has a driver behavior problem. The second one has a maintenance culture problem. The maintenance culture problem shows up in crashes.

The Vehicle Maintenance BASIC works the same way

Vehicle Maintenance is where this analysis matters most, because the spread between low-risk and high-risk violations within that BASIC is enormous.

At the low-risk end: missing inspection sticker, one burned-out marker light, documentation paperwork violations. These inflate a Vehicle Maintenance BASIC and they tell you the carrier isn't great at paper compliance. That's worth knowing, but it's not the same as a crash predictor.

At the high-risk end: brake adjustment violations (49 CFR § 393.47), brake system failures (§ 393.45, § 393.48), tire violations including tread depth or sidewall damage (§ 393.75), steering system defects. These are the mechanical conditions that appear in the inspection reports of carriers who then have catastrophic crashes. Brakes and tires are the leading mechanical causes of fatal large truck crashes. This isn't speculation — it's in FMCSA's Large Truck Crash Causation Study data.

So if a carrier has an elevated Vehicle Maintenance BASIC, the first question isn't "how elevated?" It's "what kind of violations?"

A carrier at the 70th percentile from repeated brake adjustment violations is a different risk than a carrier at the 78th percentile from missing cab card paperwork. Most automated vetting tools will flag the second one harder than the first.

A real-world example of why this matters

Take a fictional carrier — call them Meadowlark Express Freight, MC-1247893, DOT-3567102. I pulled them a few months ago on a lane from Joliet to Birmingham, temperature-sensitive freight.

Their Vehicle Maintenance BASIC was at the 71st percentile. Elevated but not in the alert zone for that BASIC. The tool I was using showed yellow, not red.

I clicked through to their inspections anyway — habit. Four inspections in the last 18 months. Two of them had brake adjustment violations. One had a tire citation (§ 393.75, sidewall damage). The fourth was clean.

That's a pattern. Three of four inspections with mechanical violations, all equipment-related. That's not paperwork noncompliance. That's a fleet that isn't maintaining its equipment between inspections.

I passed on Meadowlark. Not because the BASIC score told me to — the score said they were probably fine. Because the violation codes underneath told me something different.

Why the severity weighting doesn't solve this problem

FMCSA's severity weighting system does try to account for the relative danger of different violations. Brake failures and tire defects do carry higher weights than missing stickers. So in theory, the BASIC score is already accounting for some of what I'm describing.

In practice, the weighting doesn't fully solve the signal problem for two reasons.

First, carriers can accumulate a lot of low-severity violations and land at the same percentile as a carrier with fewer but more dangerous violations. The frequency component of the calculation means volume matters, and volume of harmless violations can mask the absence of severe ones or vice versa.

Second, the 24-month rolling window means a carrier with three brake violations last quarter looks the same as a carrier with three brake violations spread over two years. The recency and clustering of violations is something you can only see by reading the actual inspection records, not by reading the composite score.

The specific codes worth knowing

I won't pretend I've memorized every FMCSA violation code. But there are a few specific CFR sections that I pay attention to when I'm clicking through inspection records:

In Unsafe Driving: § 392.2 speeding violations — especially anything over 15 mph above the limit, and anything in a work zone or school zone. These carry higher crash correlation than other speeding types. § 392.82 texting violations, especially if they appear multiple times or on multiple drivers.

In Vehicle Maintenance: § 393.47 and § 393.45 (brakes), § 393.75 (tires). These three, when they show up repeatedly across different inspections, tell me the maintenance program is structurally broken, not just unlucky.

In HOS Compliance: § 395.8 logbook falsification or § 395.3 driving over the limits. A carrier with a pattern of HOS violations where the driver is logging less time than they actually drove is a carrier where the safety culture starts at the top.

How I document this

When the BASIC score is elevated enough that I'm clicking through to inspection records, I add a note to the carrier file that says something like: "Unsafe Driving BASIC at 74th percentile. Reviewed underlying inspection records 7/2/26. Violations: (1) § 392.80 cell phone, MC-1247893 driver Smith DOT inspection 3/14/26; (2) § 392.16 seatbelt, same carrier 11/7/25. No speeding, no reckless driving, no vehicle defect violations. Decision to proceed — no high-crash-correlation codes identified."

That's it. One paragraph. It shows that I looked past the score, I identified the actual violations, and I made a reasoned decision. If this carrier is ever involved in an incident and the plaintiff's lawyer demands my vetting file, that note is the difference between "they checked a box" and "they actually evaluated the risk."

After Montgomery v. Caribe Transport II, LLC (U.S. Supreme Court, May 14, 2026) confirmed that state-law negligent selection claims against freight brokers are not preempted by the FAAAA, what you documented about your selection decision is everything. A BASIC score screenshot with no analysis underneath it doesn't show reasonable care. It shows that you knew there was something elevated and you moved on without understanding why.

The violation codes underneath the score are where the actual vetting work happens. The score is just the prompt to go look.

The bottom line

BASIC scores are a starting point. They're a signal that says: this carrier has had more roadside issues than average, look closer. They're not a verdict. And they're not a substitute for reading the inspection records that created them.

Most brokers check the score, see yellow or green, and move on. That's how you end up tendering freight to a carrier with three brake violations in the last six months and a BASIC score that didn't set off any alarm.

Pull the inspection records. Read the violation codes. Note what you found and why you still proceeded — or why you didn't. That's what actual due diligence looks like. Not the composite number. The data behind it.

— Mason Lavallet

Founder, DOTScreener.com