§ 393.60 Glazing in specified openings.

(a) KindGlazing of glassmaterial. (1) Glazing utilizedmaterial orused installed in the windshieldwindshields, windowwindows, door,and ordoors anyon othera openingmotor intovehicle amanufactured buson or after December 25, truck1968, orshall truckat tractor,a exceptminimum vehiclesmeet engagedthe inrequirements armoredof carFederal service,Motor shallVehicle conformSafety toStandard the(FMVSS) requirementsNo. contained205 in effect on the “Americandate Standardof Safetymanufacture Codeof forthe Safetymotor Glazingvehicle. MaterialsThe forglazing Motormaterial Vehiclesshall Operatingbe onmarked Landin Highways,”accordance with theFMVSS effectiveNo. dates205 shown in paragraph (a)(2)49 ofCFR this571.205, sectionS6).
(2b) TableWindshields ofrequired. GlazingEach Requirementsbus, truck and Effectivetruck-tractor Dates:
Vehiclesshall manufactured Mustbe complyequipped with Z 26.1-1950 Za 26windshield.1-1950 asEach supplementedwindshield byor Zportion 26.1a-1964 Zof 26.1a multi-1966piece aswindshield supplementedshall bybe Zmounted 26.1a-1969
Beforeusing Januarythe 1,full 1966 xperiphery of the glazing material.
From(c) JanuaryWindshield 1,condition. 1966With tothe Decemberexception 31,of 1980 x
Onthe andconditions afterlisted Januaryin paragraphs (c)(1), 1981 x
(bc)(2), Windshieldand condition.(c)(3) Everyof motorthis vehiclesection, each windshield shall be free of discoloration or other damage in thatthe portionarea thereof extending upward from the height of the topmosttop portion of the steering wheel, but(excluding nota including51 amm (2 inch) border at the top of the windshield) and extending from a 25 mm (1 inch) border at each side of the windshield or eachwindshield panel. thereof, except that discoloration and damage as follows are allowableExceptions:
(1) Coloring or tinting appliedwhich inmeets manufacture,the forrequirements reductionof paragraph (d) of glarethis section;
(2) Any crack notthat overis 1/4-inch wide, if not intersected by any other crackcracks;
(3) Any damaged area which can be covered by a disc 19 mm (
3/4- inch) in diameter, if not closer than 76 mm (3 inches) to any other suchsimilarly damaged area.
(cd) UseColoring or tinting of vision-reducingwindshields matterand windows. NoColoring motoror vehicletinting mayof bewindshields operatedand withthe anywindows label,to sticker,the decalcomaniaimmediate right and left of the driver is allowed, provided the parallel luminous transmittance through the colored or othertinted vision-reducingglazing matteris coveringnot anyless portionthan 70 percent of itsthe light at normal incidence in those portions of the windshield or windows atwhich eitherare sidemarked as having a parallel luminous transmittance of not less than 70 percent. The transmittance restriction does not apply to other windows on the commercial motor vehicle.
(e) Prohibition on obstructions to the driver's compartment,field exceptof thatview—(1) stickersDevices requiredmounted byon lawthe mayinterior of the windshield. (i) Antennas, and similar devices must not be affixedmounted atmore than 152 mm (6 inches) below the bottomupper edge of the windshield. These devices must be located outside the area swept by the windshield wipers, providedand nooutside portionthe driver's sight lines to the road and highway signs and signals.
(ii) Paragraph (e)(1)(i) of anythis labelsection does not apply to vehicle safety technologies, stickeras defined in § 393.5, decalcomaniathat are mounted on the interior of a windshield. Devices with vehicle safety technologies must be mounted:
(A) Not more than 216 mm (8.5 inches) below the upper edge of the area swept by the windshield wipers;
(B) Not more than 175 mm (7 inches) above the lower edge of the area swept by the windshield wipers; and
(C) Outside the driver's sight lines to the road and highway signs and signals.
(2) Decals and stickers mounted on the windshield. Commercial Vehicle Safety Alliance (CVSA) inspection decals, and stickers and/or otherdecals vision-reducingrequired matterunder Federal or State laws may extendbe upwardplaced at the bottom or sides of the windshield provided such decals or stickers do not extend more than 41115 mm (4
1/2 inches) from the bottom of suchthe windshield and are located outside the area swept by the windshield wipers, and outside the driver's sight lines to the road and highway signs or signals.
[3363 FR 197351387, DecJan. 259, 19681998, as amended at 4181 FR 5303165574, DecSept. 323, 19762016; 4483 FR 2545722878, May 117, 19792018; 4487 FR 3198212604, JuneMar. 47, 19792022]