393.60C

393.60C Violation: Damaged or Discolored Windshield

The windshield was recorded with damage or discoloration that violated the location or condition restrictions in the federal rule.

Plain-English answer

What does violation code 393.60C mean?

The windshield was recorded with damage or discoloration that violated the location or condition restrictions in the federal rule.

Why carriers pay attention

How 393.60C can affect a trucking safety record

Not every chip or crack is automatically a federal violation. Location, dimensions, intersection with other cracks, and the area swept by the wipers can be important.

FMCSA inspection data can flow into the Safety Measurement System used to organize carrier performance into Behavior Analysis and Safety Improvement Categories, commonly called FMCSA SMS BASICs. The carrier should verify the inspection, the assigned BASIC, and whether the violation is included in the official calculation.

How it gets cited

Common 393.60C inspection situations

  • A crack, discoloration, or intersecting damage falls within a restricted windshield area.

  • The report describes damage without measurements or a clear location.

DataQ review

When a 393.60C violation may deserve a closer look

A DataQ challenge should identify a specific factual or legal error in the inspection data. These are review questions—not assumptions that the violation should be removed.

Potential review angles

  • The damage was outside the prohibited area or below the applicable threshold.
  • Measurements, location, or the affected windshield are recorded incorrectly.
  • The cited condition was repaired before the inspection and the report concerns old damage.

Evidence to collect

  • Straight-on photographs with measurements and wiper-sweep area visible
  • Glass repair or replacement records with dates
  • Inspection notes describing the exact location and dimensions
Compliance expert review

Not sure whether 393.60C belongs on your record?

We'll review the violation details, identify evidence gaps, and explain whether the facts may support a DataQ challenge.

DataQs changes in 2026

A stronger review process still requires a stronger record.

FMCSA’s 2026 DataQs overhaul adds independent review stages, decision deadlines, and more detailed explanations. Carriers still carry the burden of identifying the error and supporting the requested correction.

See the 2026 DataQs changes
Frequently asked questions

393.60C violation FAQ

What does a 393.60C violation mean?

The windshield was recorded with damage or discoloration that violated the location or condition restrictions in the federal rule.

Which FMCSA SMS BASIC is associated with 393.60C?

Code 393.60C is commonly associated with the Vehicle Maintenance BASIC in the FMCSA Safety Measurement System. Inclusion and weighting should be confirmed on the carrier’s official record.

Can a trucking company challenge a 393.60C violation?

A carrier may submit an FMCSA DataQs Request for Data Review when the underlying inspection data is incomplete or incorrect. A repair made after the inspection does not by itself prove the original 393.60C finding was wrong.

What evidence helps review a 393.60C violation?

Useful evidence may include straight-on photographs with measurements and wiper-sweep area visible, glass repair or replacement records with dates, inspection notes describing the exact location and dimensions. The best evidence is tied to the cited vehicle, driver, location, and inspection time.

Source references: 49 CFR 393.60 and FMCSA roadside inspection data. This guide is general information and does not guarantee a DataQs outcome or replace legal advice.