In 2006, California implemented the California Global Warming Solutions Act, also known as AB 32. This law formed a comprehensive, long term plan for California to lessen greenhouse gas emissions to 1990 levels by 2020. Cool Paints was recognized as an Early Action strategy, to be in place no later than January 1, 2010. This strategy is based on actions to reduce the solar heat gained by a vehicle parked in the sun. A cooler interior would make drivers less possibly to activate the air conditioner, which enhances carbon dioxide emissions.
Potential approaches comprise reformulation of paint to reflect near-infrared sunlight, parked car ventilation, and solar reflective window glazing. It is predicted that cool paints, together with reflective glazing, will reduce the saturate temperature of the typical vehicle parked in the sun by 5 to10 degrees Celsius.