Releases New Proposed Draft of Cool Car Standards; Schedules Public
Hearing for June 25-26
May 19, 2009
The California Air Resources Board (CARB) has released a draft of its
Cool Car Standards and Test Procedures. In addition, the group has
scheduled a public hearing for June 25-26 to consider the adoption
of the regulations.
The most recently released draft includes solar glazing regulations,
but no longer addresses the focus of the original legislation-that
of solar-reflective paints.
"Although staff believes that these paints should be developed
and used, the timeframe of this regulation is too short to ensure
that pigments for all desired colors can be developed," writes
CARB in its report on the draft.
However, the group notes that solar reflective glazing already is
available from a number of glass manufacturers. Likewise, CARB notes
that it consulted with several manufacturers, including AGC/Asahi
Glass, Exatec LLC, Guardian Industries, Pilkington Automotive, Pittsburgh
Glass Works, Saint Gobain Sekurit and Zeledyne, as it developed
the current proposed regulations.
The proposed regulations would require newly manufactured passenger
vehicles to use solar management glazing, beginning with the model
year 2012. Windshields would be required to transmit no more than
50 percent of the total solar energy into the vehicle-including
visible light, as well as ultraviolet and infrared (heat) energy.
Sunrooms would be required to transmit no more than 30 percent of
the total solar energy, and "the balance of vehicular glazing
would be required to transmit no more than 60 percent of the total
In addition, the regulations would phase in a second requirement
for windshields, limiting total solar requirement to no more than
40 percent, beginning with the model year 2014.
In its statement of reasons for rule-making, CARB writes that two
glass manufacturers have advised they have or will have met this
level by 2014, and the group also is proposing possible trade-offs-where
manufacturers could potentially trade improved performance in one
part of the vehicle's glass for reduced performance in another.
The regulation also would apply to replacement glass.
If passed in its current form, the Cool Paint regulation also would
require additional labeling or marking on the glass "so that
glazing replacers, consumers and enforcement personnel can identify
During the hearing on June 25, examples of these labels will be
provided, according to the report.
CARB predicts that the regulation will have a "minimal impact
on small business," and estimates that there are 1,021 automotive
glass replacement businesses in California.
"These window replacement businesses, whether small or large,
independent or affiliated with a vehicle dealership, will need to
use replacement windows that meet the specified performance,"
writes CARB. "The additional cost, if any, for the solar management
glazing will be passed on to the insurance company or to the consumer."
CARB also notes that no additional record-keeping will be required.
The June 25-26 hearing will begin at 9 a.m. at Byron Sher Auditorium
at the California Environmental Protection Agency in Sacramento,
Calif. Those who wish to submit comment but cannot attend may do
so by noon on June 24. These comments should be sent to Clerk of
the Board, Air Resources Board, 1001 I Street, Sacramento, Calif.,
95814, submitted electronically at http://www.arb.ca.gov/lispub/comm/bclist.php,
or by fax to 916/322-3928.
The proposed CARB regulations have come about as a result of AB
32, California's Global Warming Solutions Act of 2006, which requires
the state to reduce greenhouse gas emissions to 1990 levels by 2020-a
reduction of 25 percent.
HERE for full text of the "Staff Report: Initial Statement
of Reasons for Rulemaking."
HERE for more information about June 25-26 hearing.
HERE for CARB Report, "Additional Information in Support
of Proposed Cool Car Standards and Test Procedures."
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