What 393.82 means in plain language
FMCSR 393.82 covers the rear vision mirrors on your commercial motor vehicle. The regulation requires that every CMV be equipped with mirrors that give you an adequate view to the rear — if those mirrors are broken, missing, or simply not up to the job, you're in violation.
The word "adequate" is doing a lot of work here. It's not enough to have a mirror physically bolted to the truck if it's cracked so badly you can't see through it, or if it's been knocked so far out of alignment that it shows you nothing useful. Inspectors are looking at whether a driver can actually use the mirror to observe traffic and obstacles behind and beside the vehicle.
This applies across your entire mirror setup — both sides of the cab. A missing or non-functional mirror on even one side is enough to draw a citation under this code.
What our enforcement data actually shows
The first thing you need to know if you were just cited under 393.82: you are not getting placed out of service for this. Across all 2,486 citations in our inspection records, the out-of-service rate for this code is 0.0%. Every single cited vehicle was allowed to continue operating. That's a stark contrast to the all-FMCSR average OOS rate of 31.4% — 393.82 sits at the absolute floor.
That doesn't mean it's consequence-free. The code carries a CSA severity weight of 4, which means it still feeds points into your Unsafe Driving or Vehicle Maintenance BASIC depending on how it's classified on your inspection report. Those points follow your safety record for 24 months.
In terms of enforcement volume, our database shows 2,486 all-time citations, with 647 in the last 12 months and 157 in the last 90 days alone. The monthly trend data for the past year shows enforcement activity ranging from a low of 25 citations in April 2025 up to a peak of 76 citations in February 2026, with no month at zero. This is not a dormant code — inspectors are writing it consistently. Nationally, 393.82 ranks #489 out of 3,036 FMCSR codes by citation volume, placing it in the top 20% of all cited codes.
Who gets cited most
Looking at the last 180 days of our inspection records, Texas dominates enforcement of this code by a wide margin — 293 citations compared to just 2 each in Iowa, Illinois, and North Carolina, and 1 in New Mexico. Every one of those states sits at a 0.0% OOS rate, so the geographic variation in outcomes is nonexistent, but the volume difference is significant. If you run Texas lanes regularly, this is a code worth keeping on your radar.
Our data shows fleets such as JESUS MA VALDEZ GARCIA (USDOT 2534784) with 24 all-time citations and GILBERTO CARRANZA-GOMEZ (USDOT 786840) with 15 citations leading the carrier list for this code. High repeat counts at a single operation typically signal a systemic gap in pre-trip mirror inspection protocols rather than isolated incidents.
Looking at vehicle makes, Freightliner (FRHT) accounts for 414 all-time citations under this code — the highest of any make in our records. Kenworth (KW) follows at 288, and Peterbilt (PTRB) at 151. If you drive any of these platforms, pay particular attention to mirror mounting hardware and glass condition during your pre-trip, as these vehicles show up disproportionately in the citation data.
How severe is this compared to similar codes
Put 393.82's 2,486 all-time citations next to some of its peers in the Vehicle Maintenance category and it looks relatively modest. Consider 393.9(a) — Inoperable Required Lamps — which our inspection records show has accumulated 660,737 citations and carries a 15.4% OOS rate. Or look at 396.3(a)(1) — the general inspection, repair, and maintenance code — with 236,919 citations and a 45.3% OOS rate. Both of those codes hit harder in volume and carry real out-of-service risk.
Closer in behavior is 393.78 — Windshield Condition Defective — with 157,894 citations and a 0.3% OOS rate. Like 393.82, it's a visibility-related equipment citation that almost never pulls a truck off the road, but it still accumulates in your CSA record. The pattern across these visibility codes is consistent: inspectors write them, OOS outcomes are rare, but the BASIC points are real.
How to avoid it
The co-occurring violation data from our last 90 days of records is the clearest signal available for what goes wrong on the same inspections where 393.82 gets written. Use that pattern to build a smarter pre-trip.
- Check every mirror before you move the truck. Both sides, glass condition, mounting hardware. Look for cracks that compromise the reflective surface and verify the mirror hasn't been knocked out of adjustment since your last stop. This takes 60 seconds and eliminates the violation entirely.
- Walk your lighting while you're at the mirrors. In our 90-day data, 393.9 (Inoperable Required Lamp) appears on 72 of the same inspections as 393.82. Mirrors and lights fail together because they share exposure to road debris, weather, and dock impacts. Check both systems as a unit.
- Inspect your windshield and defroster at the same time. 393.78 (Windshield Condition Defective) co-occurs on 63 shared inspections, and 393.79 (Inoperable Defroster/Defogger) appears on 31. Visibility systems — mirrors, glass, defroster — degrade together. A quick scan of all three takes under two minutes.
- Don't skip the fuel system and exhaust walkthrough. 396.5B (Fuel System Leak) shows up on 58 shared inspections, and 393.83G (Exhaust Discharging Near the Cab) on 44. These aren't directly related to mirrors, but their co-occurrence tells you that when a truck is being cited for mirror defects, it's often a vehicle that hasn't had a thorough mechanical look-over in a while. A real pre-trip catches all of it.
- If you drive a Freightliner, Kenworth, or Peterbilt, make mirror hardware part of your standard check. These three makes account for 853 of the 2,486 all-time citations in our records. Check that mirror brackets are tight and that convex spot mirrors — where present — are still properly angled and uncracked.
- Replace damaged mirrors before your next dispatch, not at the next terminal. A broken mirror is a quick fix with parts on hand. Delaying it turns a $0 repair into a CSA severity-4 citation that stays on your record for two years.