NATS primarily started as a commuter service providing low-cost transportation to the workplace for those employees who live in the most rural areas served. Service began with four small vans serving Boone and Newton counties, as well as parts of Carroll and Madison counties.  By the end of the first year of operation, the fleet had grown to nine vehicles and provided more than 2,200 passenger trips for employee purposes.  NATS' fleet now consists of 64 vans and small buses, two crew cab pickup trucks, two service trucks, and one SUV.  

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By the end of 2025, NATS vehicles will have traveled more than 668,000 miles, providing more than 94,000 passenger trips.