Violation code

393.62-BEND

Buses - Required emergency exit not properly marked. (does convey message)

Vehicle Maintenance1Non-OOS· SMS Appendix A v3.20

393.62-BEND is a Windshield/ Glass/ Markings violation under 49 CFR §393.62-BEND. It falls in the Vehicle Maintenance BASIC with a severity weight of 1/10. Nationally it was cited 576 times in the last five years, with an OOS rate of 14.8%.

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National roadside inspection stats

as of 10/20/2026

Inspections

541

that found this code

Violations

576

total written

OOS rate

14.8%

85 OOS

Source: FMCSA roadside inspection data (last 5 years). The OOS rate is the share of these violations that led the officer to mark the driver or vehicle out of service.

Violation group: Windshield/ Glass/ Markings
Regulation §: 393.62-BEND
Severity weight: 1
Used in SMS: Yes
Status: Active
Updated: 10/20/2026

Last updated October 2026

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Notes

DSMS: Y | Comment: Added in 3.19

What 393.62-BEND means — and how to avoid it

In plain English

In plain terms, 393.62-BEND is cited for buses - Required emergency exit not properly marked. (does convey message). It falls under the FMCSA rules on parts and accessories needed for safe operation.

What the inspector checks

•Windshield cracks/discoloration in the driver’s view
•Required mirrors present and undamaged
•Wipers/defroster operational

How to prevent it

✓Repair windshield damage in the sightline before it spreads
✓Confirm both mirrors and wipers work on the pre-trip

How it affects your CSA

up to 3 pts (fresh)

Severity 1/10. A fresh citation counts at the 3× time weight — up to 3 points toward the Vehicle Maintenance BASIC — then tapers to 2× after 6 months and 1× after a year, dropping off the score at 24 months.

General guidance from the violation’s FMCSA classification — not legal advice, and not a substitute for the inspector’s findings or 49 CFR.

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Challenging 393.62-BEND through FMCSA DataQs

If this violation was written incorrectly, here are the angles trucking-safety managers use to contest it. Playbook: Vehicle Maintenance (general).

Common ways to challenge this code

Pre-trip inspection showed compliant brakes
The driver's pre-trip DVIR documented compliant brake adjustment and operation. The cited defect arose en route or was misclassified at roadside.
Evidence that wins
- ✓Driver Vehicle Inspection Report (DVIR) from that date
- ✓Repair invoice or shop record
- ✓Post-citation re-inspection certificate (clean)
Momentary failure exception (§393.9)
The required lamp was inoperative only momentarily due to vibration, temperature, or similar transient cause — explicitly exempted under §393.9.
Evidence that wins
- ✓Photograph showing the lamp operable before / after the stop
- ✓Repair invoice if a fuse or bulb was replaced
Tread measurement disputed
The tread depth measurement was taken at a worn point that is not representative, contrary to NHTSA/FMCSA measurement standards.
Evidence that wins
- ✓Independent tread gauge reading from same tire (multiple positions)
- ✓Photograph of the tire with a reference scale
Documented maintenance schedule disproves the defect
Carrier's periodic-inspection records show the cited defect could not reasonably have existed at the time of inspection.
Evidence that wins
- ✓Periodic inspection certificate (§396.17)
- ✓Maintenance work order proximate to inspection date

Common pitfalls — avoid these

⚠DataQs cannot remove a violation simply because the defect was repaired after the stop

⚡ Draft a challenge for 393.62-BEND →Read the DataQs guide first

More codes in Vehicle Maintenance

Same BASIC category — ranked by national citation volume

View all Vehicle Maintenance codes →

Other Windshield/ Glass/ Markings codes

Codes under the same FMCSA violation group

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Frequently asked questions about 393.62-BEND

What does violation 393.62-BEND mean?

393.62-BEND is the FMCSA roadside-inspection violation code for "Buses - Required emergency exit not properly marked. (does convey message)", part of the Windshield/ Glass/ Markings group, cited under 49 CFR §393.62-BEND.

What BASIC does 393.62-BEND affect?

393.62-BEND falls under the Vehicle Maintenance BASIC in the FMCSA Safety Measurement System (SMS).

What is the CSA severity weight of 393.62-BEND?

393.62-BEND carries a severity weight of 1 out of 10. Higher weights indicate violations more closely tied to crash risk, and they count more toward a carrier's Vehicle Maintenance score.

Is 393.62-BEND an out-of-service (OOS) violation?

No. 393.62-BEND is not an out-of-service violation, so on its own it does not trigger an out-of-service order at the roadside.

How many CSA points does 393.62-BEND add to a carrier's score?

The point contribution of 393.62-BEND depends on its severity weight (1/10) multiplied by a time weight of 3, 2, or 1 based on how recent the inspection is. You can calculate the exact contribution with the CSA points calculator.

How can a driver prevent 393.62-BEND?

Repair windshield damage in the sightline before it spreads; Confirm both mirrors and wipers work on the pre-trip.

Can 393.62-BEND be challenged through DataQs?

Yes. If you believe 393.62-BEND was recorded in error, you can file a Request for Data Review (RDR) through the FMCSA DataQs system with supporting evidence. A successful challenge can remove or correct the violation on your record.

Keep going

CSA points calculator How to challenge a violation Draft a DataQs letter for 393.62-BEND Vehicle Maintenance BASIC Carrier CSA lookup CSA glossary

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