Many states have regulations on the amount of VOCs, or volatile organic compounds, that can be contained in a product and remain compliant with local or state regulations. The levels that can be present vary so many chemical products are now being produced to be VOC Compliant.
The definition of a VOC according to wikipedia is "Volatile organic compounds (VOCs) are organic chemicals that have a high vapor pressure at ordinary room temperature. Their high vapor pressure results from a low boiling point, which causes large numbers of molecules to evaporate or sublimate from the liquid or solid form of the compound and enter the surrounding air, a trait known as volatility. For example, formaldehyde, which evaporates from paint, has a boiling point of only –19 °C (–2 °F)."
Some VOCs can be dangerous to your health or can cause harm to the environment. Most VOCs are not specifically toxic but can lead to an increase long-term risk of health effects due to the generally low concentrations and slow developing symptoms from extended exposure.
VOCs can be found in common cleaners, waxes, glues, chemicals, paints, and other fuels like gasoline and kerosene. VOCs can be found both indoor and outdoor but the levels are generally in higher concentration in indoor settings. Since VOCs are common in our everyday environment, increasing ventilation or reducing the use of chemicals containing VOCs can help to reduce the effects in your environment.
Purchasing cleaning chemicals in Auto Magics line of car care products that are labeled as VOC Compliant will help ensure that those automotive products are within the allowed levels of VOC compliance set by state and national laws.
Here is a list of states that have VOC Laws on the books. Also they are linked to their respective pages for more indepth information on each state.