haulrecordFMCSA data

Violation codes / 393.60D

49 CFR 393 · Parts and accessories

393.60D

What it means

Windshield / Windows - Tinting permits less than 70% of light transmittance

What the rule actually says

This violation cites 49 CFR 393.60, glazing in specified openings. The regulation reads:

(a) Glazing material. Glazing material used in windshields, windows, and doors on a motor vehicle manufactured on or after December 25, 1968, shall at a minimum meet the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 205 in effect on the date of manufacture of the motor vehicle. The glazing material shall be marked in accordance with FMVSS No. 205 (49 CFR 571.205, S6).

(b) Windshields required. Each bus, truck and truck-tractor shall be equipped with a windshield. Each windshield or portion of a multi-piece windshield shall be mounted using the full periphery of the glazing material.

(c) Windshie…

The section continues.

49 CFR 393.60, Glazing in specified openings. Read the full section on eCFR

Quoted verbatim from the Electronic Code of Federal Regulations. Nothing here is a paraphrase, and nothing here is legal advice on a citation.

Times recorded77,92617% as often as 393.9, the most cited
How common48thof the 200 most cited codes, out of 2,372 that exist
Regulation393.60Parts and accessories

How often this comes up

This violation was recorded 77,926 times across the roadside inspections in the FMCSA file, making it the 48th most frequently cited code. Whether a given instance puts a vehicle or driver out of service is decided at the roadside by the inspector, not by the code itself, so the same violation can end a trip or simply be noted.

It sits under 49 CFR Part 393, which covers parts and accessories. To see it in context, look up a carrier and read its inspection history: the same code appearing repeatedly is a different signal from a single occurrence.

Look up a carrier's inspection record

Other parts and accessories violations

Counts are from the FMCSA Inspections and Violations file via data.transportation.gov. This describes how the violation is recorded, and is not legal advice on a citation.