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Division of Fleet Management Services

Air Quality

Fleet Management is assisting in Montgomery County’s effort to reduce harmful emissions that contribute to the Washington Metropolitan Region’s serious air quality problem. The Region’s air quality problem primarily results from ground-level ozone, a harmful gas formed when volatile organic compounds (VOCs) and nitrogen oxides (NOx) react with sunlight. Much of the Washington area VOCs and NOx comes from vehicle emissions.

Fleet Management purchases environmentally-compliant vehicles and maintains the County’s vehicles, including the buses for the County’s mass transit system, Ride-On, thereby reducing traffic congestion and air pollution. Older, more polluting vehicles are removed from service and sold or shredded and recycled as scrap metal.

Fleet Management’s air quality improvement efforts include:


Checkmark Cleaner Emissions & Alternative Fueled Vehicles

ethanol gas pump next to a busBuses are maintained on a regular schedule to assist in reducing emissions. Additionally, older buses are replaced with more environmentally-friendly buses that run on com pressed natural gas (CNG) or hybrid diesel-electric technology. Other new buses use clean diesel technology to reduce emissions. Fleet has also piloted biodiesel fuel for transit and heavy duty vehicles, and is moving additional vehicles to biodiesel.

A multi-technology fleet of alternative-fueled vehicles is being utilized in order to benefit from expected improvements in operations, costs, and environmental impacts as these different technologies evolve. The County fleet currently includes the following cleaner emission and/or alternative fueled vehicles:

  • 95 CNG buses
  • 49 Diesel-Electric Hybrid buses
  • 2 CNG cars/sedans
  • 1 CNG light truck
  • 21 Hybrid vehicles (compact/small SUV)
  • 125 Bi-fuel (ethanol E-85 and unleaded gasoline) cars and light trucks
  • 25 Clean Diesel buses
Checkmark  Use of Lower VOC Products

dont' dumb aerosal cans in the recycle binFleet Management Services vehicle maintenance facilities have made great strides in reducing the amount of solvents and other airborne chemicals used in our operations. To that end we:

  • Recover & re-use air conditioning refrigerant
  • Use microbial and aqueous parts washers
  • Reduce use of aerosol products
  • Use low VOC paint in our vehicle painting operation and paint in spray booth equipped with exhaust filters

These efforts also reduce our use of hazardous materials and hazardous waste.

Checkmark No foul emisssionsVehicle Idling Policy

Fleet Management Services has a   Vehicle Idling Policy in effect at our facilities to reduce vehicle idling in our operations in order to reduce air pollution and conserve fuel.

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