FMCSR 393.17(d): Lamps & Reflectors — Your Citation Guide

No. Across our inspection records, 393.17(d) citations result in zero out-of-service orders—a 0.0% OOS rate across all 36 all-time citations in our database. This is significantly lower than the 31.4% average OOS rate across all FMCSR codes, meaning inspectors treat this violation as a fixable defect rather than an immediate safety threat. You can typically continue operating while you arrange repairs.

This violation carries a severity weight of 3, which translates to CSA points based on FMCSA's 30-day rolling severity multiplier. The exact CSA point value depends on when the citation was issued and how many other citations fell within that 30-day window. However, with only 0 citations in the last 90 days and 0 in the last 12 months across our 13 million+ inspection records, this is an exceptionally rare violation—most drivers will never encounter it.

Immediate steps:

1. Do not ignore the citation—file it with your carrier's safety department immediately.
2. Document the specific lamp or reflector defect cited (the inspector's report will detail which light/reflector failed).
3. Contact a qualified mechanic to repair or replace the faulty component to DOT specifications.
4. Keep the repair invoice and photos as proof of compliance.
5. Request a follow-up inspection from your company or a certified inspector to verify the fix.
6. Ask your safety manager whether to contest through DataQs if you believe the citation was in error.

No, it's relatively minor. Our inspection data shows 393.17(d) ranks #1727 out of 3,036 FMCSR codes by citation volume. Compare it to related lamp violations: 393.9(a) (inoperable required lamps) generated 660,737 citations with a 15.4% OOS rate, and 393.11 (lighting devices/reflectors) produced 179,734 citations with a 1.8% OOS rate. At just 36 all-time citations and a 0.0% OOS rate, 393.17(d) is one of the least-cited and least-enforced vehicle maintenance defects on the road.

Yes, you can file a DataQs challenge if you dispute the citation. However, lamp and reflector defects are equipment-based findings—meaning inspectors examine the physical vehicle. If the lamp or reflector genuinely did not meet DOT specifications at the time of inspection, the citation will likely stand. DataQs works best for documentation errors (missing logs, invalid credentials) or factual disputes about which vehicle was actually inspected. If the defect existed and was correctly identified, repair and compliance is your best path forward.

The carrier data in our records shows OBY GLENN MELVIN (USDOT 2451711) received the most citations under this code with 2 citations all-time. After that, nine other carriers each have 1 citation on record, including Kirksey Trucking Inc, Sysco Southeast Florida LLC, and New Bern Transport Corporation. The distribution is so sparse that no single state or region dominates—this violation is genuinely uncommon across the entire country.

Medium priority. While the citation doesn't trigger an out-of-service order, defective lamps and reflectors are safety hazards—they reduce visibility to other drivers and increase crash risk in low-light conditions. Our inspection data shows zero citations in the last 90 days and zero in the last 12 months, which reflects how rare and low-frequency this violation is. Schedule the repair within 1–2 weeks if possible, but this is not an emergency that stops you from working immediately.

Both. Under FMCSA safety accountability guidelines, the citation is recorded against both the driver (in driver qualification files) and the carrier (in roadside inspection history). Your carrier's safety management system will track this as a maintenance violation, which may affect company-level CSA scores and insurance rates. For you personally, it remains part of your driver record and can be viewed by potential employers. Work with your carrier to ensure the repair is documented and the citation doesn't become part of a pattern of maintenance neglect.