Prince William County Government--public Works, Fleet Management, Parts & Fuel Office Manassas, VA 20108 Phone : (703) 792-5935 Business Category Government Offices & Public Schools Prince William County Government--public Works, Building Development, Construction Permits & Records, Parts & Fuel Office Manassas, VA 20110 Phone : (703) 792-5935 Business Category Government Offices-County Government Offices & Public Schools