skip navigation
Arizona Department of Environmental Quality Arizona's Official Website
Arizona Children's Environmental Health Program: School Vehicle Emission Reduction Program

Iit is important for school bus drivers to turn off their engines when picking up and dropping off children at their schools. More than half of Arizona's schools participate in this simple practice that helps reduce student and driver's exposure to toxic diesel exhaust. View the Bus Idling video and learn why school bus idling reduction is so important.

ADEQ launched a pilot program on Aug. 12, 2004, with several Arizona school districts to reduce children's exposure to harmful diesel emissions from buses idling near schools. The program is part of ADEQ's Children's Environmental Health Project to reduce environmental risks to children's health.

Idling school buses can expose school children to diesel exhaust on a daily basis. Diesel emissions can aggravate respiratory illnesses such as asthma and have been linked to heart and lung disease. One of the primary components of diesel emissions, carbon monoxide, also can reduce alertness and learning capacity in children.

ADEQ has worked with school districts to draft a bus idling policy, which districts involved in the pilot program are implementing. ADEQ is presenting the policy to other school districts for consideration and offering technical assistance to districts that request it.

Key elements in the policy include having drivers turn off buses upon reaching a school or other location and not turn on the engine until the vehicle is ready to depart; parking buses at least 100 feet from a school air intake system; and posting appropriate signage advising drivers to limit idling near the school.

School districts participating with ADEQ in launching the School Bus Idling Pilot Project:

  • Tucson Unified School District
  • Ampitheater Public Schools (Tucson)
  • Sunnyside Unified School District (Tucson)
  • Scottsdale Unified School District
  • Paradise Valley Unified School District
  • Gilbert Unified School District
  • Flagstaff Unified School District

Complete list of participants:

Districts Participating in ADEQ's School Bus Idling Program for 2005-2007
ApacheAlpine, Concho, Ganado Unified, Red Mesa, Round Valley, St. Johns, Sanders Unified, Vernon, Window Rock
CochiseApache Elementary, Ash Creek Elementary, Benson, Bisbee, Bowie, Cochise, Douglas Unified, Elfrida Elementary, Fort Huachuca Accomodation Schools, McNeal, Naco Elementary, Palominas, Pearce, San Simon, Sierra Vista, Tombstone, Valley Union High School, Wilcox Unified
CoconinoFlagstaff*, Grand Canyon, Page, Sedona-Oak Creek, Tuba City Unified, Williams Unified
GilaGlobe, Hayden-Winkelman, Miami Area Unified, Payson Unified, Pine-Strawberry, San Carlos, Tonto Basin, Young
GrahamBonita, Fort Thomas Unified, Klondyke, Pima Unified, Safford, Thatcher
GreenleeDuncan, Morenci
La PazBouse, Salome
MaricopaAgua Fria, Alhambra, Buckeye Elementary, Buckeye Union High School, Cartwright, Cave Creek, Chandler, Deer Valley Unified, Fountain Hills, Gilbert*, Glendale Elementary, Glendale High School, Higley Unified, Isaac, J. O. Combs Elementary, Kyrene, Laveen Elementary, Liberty Elementary, Litchfield, Littleton, Madison, Mesa, Mobile, Morristown Elementary, Murphy Elementary, Nadaburg Elementary, Osborn, Palo Verde, Paradise Valley*, Pendergast, Phoenix Elementary, Phoenix High School, Queen Creek, Saddle Mountain, Scottsdale*, Tempe Elementary, Tempe High School, Tolleson Elementary, Tolleson Union High School, Union Elementary School District, Washington Elementary, Wickenburg, Wilson Elementary
MohaveBullhead City, Colorado Union Unified, Kingman Academy of Learning, Kingman Unified, Lake Havasu Unified, Littlefield, Peach Springs, Topock Elementary, Valentine Elementary
NavajoBlue Ridge, Heber-Overgaard, Holbrook, Joseph City, Kayenta Unified, Pinon Unified, Rainbow, Show Low Unified, Snowflake Unified, Winslow Unified
PimaAjo, Altar Valley, Amphitheater*, Catalina Foothills School District, Continental, Flowing Wells, Indian Oasis-Baboquivari Unified, Marana Unified, Sahuarita, Sunnyside*, Tanque Verde Unified, Tucson*, Vail
PinalApache Junction, Mammoth-San Manuel, Maricopa Unified School District, Oracle, Ray Unified, Red Rock, Sacaton, Santa Cruz Valley Union High School
Santa CruzPatagonia, Santa Cruz Valley, Sonoita
YavapaiAsh Fork Joint Unified, Bagdad Unified, Beaver Creek, Camp Verde, Chino Valley, Clarkdale-Jerome, Congress, Cottonwood-Oak Creek, Humboldt, Mayer Unified, Mingus Union High School, Patagonia, Prescott, Walnut Grove
YumaAntelope Union, Bicentennial Union, Crane Elementary, Gadsen, Hyder Elementary, Sentinel Elementary, Somerton Elementary, Wellton, Yuma Elementary, Yuma Union High School District

*Seven original districts in the pilot program launched last year. These districts are continuing their participation this year.

Return to Arizona Children's Environmental Health Program Home Page