(a) (1) A person shall not drive any motor vehicle with any
object or material placed, displayed, installed, affixed, or applied
upon the windshield or side or rear windows.
(2) A person shall not drive any motor vehicle with any object or
material placed, displayed, installed, affixed, or applied in or upon
the vehicle that obstructs or reduces the driver's clear view
through the windshield or side windows.
(3) This subdivision applies to a person driving a motor vehicle
with the driver's clear vision through the windshield, or side or
rear windows, obstructed by snow or ice.
(b) This section does not apply to any of the following:
(1) Rearview mirrors.
(2) Adjustable nontransparent sunvisors that are mounted forward
of the side windows and are not attached to the glass.
(3) Signs, stickers, or other materials that are displayed in a
7-inch square in the lower corner of the windshield farthest removed
from the driver, signs, stickers, or other materials that are
displayed in a 7-inch square in the lower corner of the rear window
farthest removed from the driver, or signs, stickers, or other
materials that are displayed in a 5-inch square in the lower corner
of the windshield nearest the driver.
(4) Side windows that are to the rear of the driver.
(5) Direction, destination, or termini signs upon a passenger
common carrier motor vehicle or a schoolbus, if those signs do not
interfere with the driver's clear view of approaching traffic.
(6) Rear window wiper motor.
(7) Rear trunk lid handle or hinges.
(8) The rear window or windows, if the motor vehicle is equipped
with outside mirrors on both the left- and right-hand sides of the
vehicle that are so located as to reflect to the driver a view of the
highway through each mirror for a distance of at least 200 feet to
the rear of the vehicle.
(9) A clear, transparent lens affixed to the side window opposite
the driver on a vehicle greater than 80 inches in width and that
occupies an area not exceeding 50 square inches of the lowest corner
toward the rear of that window and that provides the driver with a
wide-angle view through the lens.
(10) Sun screening devices meeting the requirements of Section
26708.2 installed on the side windows on either side of the vehicle's
front seat, if the driver or a passenger in the front seat has in
his or her possession a letter or other document signed by a licensed
physician and surgeon certifying that the person must be shaded from
the sun due to a medical condition, or has in his or her possession
a letter or other document signed by a licensed optometrist
certifying that the person must be shaded from the sun due to a
visual condition. The devices authorized by this paragraph shall not
be used during darkness.