At around 1715 hours on Valentine’s Day 2014, Company 10 units were dispatched to the inner loop of the Capital Beltway in the area of River Road for a reported minivan rollover. Upon arrival, Truck 710 and Ambulance 710 found a minivan with eleven occupants, most of which were children, rolled over on the shoulder. The number of occupants quickly made what is typically a vehicle accident handled by Company 10 units, into a Mass Causality Incident or “MCI”, requiring the assistance of multiple companies. An MCI is when the number of ill or injured people will rapidly exhaust locally available resources. As Ambulance 710 and Ambulance 726 from Bethesda Chevy-Chase Rescue Squad can only hold 2-3 patients in a best case scenario, it was clear that units on scene would need additional resources. Medical Ambulance Bus 726 (“MAB 726”) was requested due to its ability to transport multiple patients with fewer personnel and units. Montgomery County Fire & Rescue Service has two MABs available to assist in mass casualty incidents, as well as support vehicles that provide equipment needed to treat these patients. Luckily one of the MABs is stations at Fire Station #26, across the street from Montgomery Mall, the second closest station to this area of the beltway, and was able to arrive on scene quickly to assist with patient care. All patients were transported to and treated at local area hospitals. For more see articles from WUSA9, NBC Washington, and FOX 5 DC.