The State of New Jersey Department of Environmental Protection has established guidelines to help reduce the amount of harmful soot in the air. This applies to Buses at schools along with many other types of vehicles. Announced on July 2nd 2007 by  Department of Environmental Protection Commissioner Lisa P. Jackson, the statewide campaign is intended to raise awareness that "idling stinks." "Unnecessary idling not only wastes fuel, but it also contributes to a number of health problems including asthma and heart disease," Commissioner Jackson said. "These rules will significantly reduce the amount of harmful soot in the air we breathe." The specific regulations vary by type of vehicle and violators are subject to a penalty of