393.17 — Lamps and reflectors inadequate

FMCSA violation code under Vehicle Maintenance. 258 events recorded in roadside inspections. Severity weight: 3.

Severity Weight
3
OOS Eligible
No
BASIC Category
Vehicle Maintenance
Total Events
258
Code
393.17
Code System
FMCSR
BASIC Category
OOS Eligible
No
Severity Weight
3
Violation Group
BASIC 5
Total Events
258
Carriers Cited
226

Violation Description

Operating a commercial motor vehicle with lamps or reflectors that do not meet the requirements.

About This Violation Code

Code 393.17 falls under the Vehicle Maintenance BASIC category in FMCSA's Safety Measurement System (SMS). It carries a severity weight of 3 (scale 1-10, higher = more severe).

When this violation is cited during a roadside inspection, it contributes to the carrier's Vehicle Maintenance BASIC score. Carriers with high BASIC percentiles may be prioritized for FMCSA interventions including warning letters, investigations, or compliance reviews.

Regulatory Reference

Federal Motor Carrier Safety Regulations

This violation references 49 CFR 393.17 in the Federal Motor Carrier Safety Regulations.

Events (all time)
258
OOS Events
225
OOS Rate
87.2%
Top State (180d)
North Carolina
1 events

Top Enforcing States

Where 393.17 is most commonly cited (last 180 days)

1.North Carolina
1
OOS 100.0%
2.Texas
1
OOS 0.0%

Click a state to see roadside inspection activity, top stations, and carrier profiles in that jurisdiction.

Citation Trend (12 months)

Monthly count of 393.17 citations. Red bars mark months with OOS-triggering citations.

1
Apr
1
Jul
2
Sep
1
Oct
1
Jan
1
Feb

Most Active Stations

Inspection stations citing 393.17 most often (last 180 days)

Often Cited Together

Other violations commonly found on the same inspection (last 90 days)

Citation patterns suggest related root causes (e.g., HOS violations paired with logbook errors).

Top Carriers Cited

Ranked by frequency • 226 carriers total • Page 1 of 10

Top Carriers with 393.17 Violations

Showing 25 of 226

fmcsa-violations

Recent Inspections

Latest inspections where 393.17 was cited • 258 total events • Page 1 of 11

Recent Inspections with 393.17

Showing 25 of 258

fmcsa-inspections
Recent Inspections with 393.17
DateReport #StateLevelOOS
Feb 3, 202687033277TXLevel 2No
Jan 19, 202686838512NCLevel 1Yes
Oct 1, 202585938831IALevel 2No
Sep 11, 202585761346NCLevel 2Yes
Sep 3, 202585682579KYLevel 1No
Jul 10, 202585569983TXLevel 2Yes
Apr 22, 202584686911TXLevel 2Yes
Apr 7, 202584340121NCLevel 2Yes
Oct 29, 202483025795KYLevel 2Yes
Oct 2, 202482826568MILevel 1No
Sep 24, 202482754706MDLevel 2Yes
Sep 24, 202482743495MDLevel 2Yes
Sep 20, 202482714070MDLevel 2Yes
Sep 19, 202482706691PALevel 2Yes
Sep 12, 202482643746OKLevel 2No
Sep 12, 202482641745MDLevel 2Yes
Sep 5, 202482622828PALevel 1Yes
Sep 3, 202482573551OHLevel 2Yes
Sep 2, 202482554146MDLevel 2Yes
Aug 29, 202482539010KSLevel 1No
Aug 22, 202482456297MDLevel 2No
Aug 9, 202482356378MDLevel 1Yes
Jul 30, 202482253185MDLevel 1Yes
Jul 29, 202482239050MDLevel 1Yes
Jul 25, 202482240521NYLevel 2No

Data sources & freshness

FMCSA Vehicle Inspections and Violations
Updated 3 months ago
Federal Motor Carrier Safety Regulations (49 CFR)
Unknown freshness