As a taxpayer in Williamson County, a portion of your tax liability funds the EMS system. The funding provided by the Commissioner's Court pays to have the EMS system ready to respond to an estimated 26,000 emergencies per year. The annual budget provides for 14 ambulances and 1 squad unit 24/7, 3 peak demand ambulances, 3 command/high priority response units, and a large backup fleet. All are staffed by highly trained paramedics and emergency medical technicians under the supervision of a full-time EMS / Emergency physician. By billing those who use the services, the revenue collected helps offset the costs to the taxpayers.