[Code of Federal Regulations]
[Title 49, Volume 4]
[Revised as of October 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR393.60]

[Page 1114]
 
                        TITLE 49--TRANSPORTATION
 
        CHAPTER III--FEDERAL MOTOR CARRIER SAFETY ADMINISTRATION,
                      DEPARTMENT OF TRANSPORTATION
 
PART 393--PARTS AND ACCESSORIES NECESSARY FOR SAFE OPERATION--Table of Contents
 
               Subpart D--Glazing and Window Construction
 
Sec. 393.60  Glazing in specified openings.


    (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) Windshield condition. With the exception of the conditions 
listed in paragraphs (c)(1), (c)(2), and (c)(3) of this section, each 
windshield shall be free of discoloration or damage in the area 
extending upward from the height of the top of the steering wheel 
(excluding a 51 mm (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 
windshield panel. Exceptions:
    (1) Coloring or tinting which meets the requirements of paragraph 
(d) of this section;
    (2) Any crack that is not intersected by any other cracks;
    (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 
similarly damaged area.
    (d) Coloring or tinting of windshields and windows. Coloring or 
tinting of windshields and the windows to the immediate right and left 
of the driver is allowed, provided the parallel luminous transmittance 
through the colored or tinted glazing is not less than 70 percent of the 
light at normal incidence in those portions of the windshield or windows 
which are marked 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 field of view--(1) 
Devices mounted at the top of the windshield. Antennas, transponders, 
and similar devices must not be mounted more than 152 mm (6 inches) 
below the upper edge of the windshield. These devices must be located 
outside the area swept by the windshield wipers, and 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 
decals required under Federal or State laws may be placed at the bottom 
or sides of the windshield provided such decals or stickers do not 
extend more than 115 mm (4\1/2\ inches) from the bottom of the 
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.

[63 FR 1387, Jan. 9, 1998]

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