Before taking off to a call, what is the driver/operator responsible for?

Answer: D — Make sure everyone is in the apparatus and have fastened their seatbelts

Before departing to a call, the driver/operator must ensure that every crew member is inside the apparatus and has their seatbelt fastened. This is the fundamental safety check that protects everyone from injuries during sudden stops, turns, or rough roads and keeps the team safely secured for immediate action once on scene. Other items like color of the vehicle, GPS location, or engine oil are not immediate safety checks for the departure and do not directly protect the crew during transport. The priority is the crew being aboard and belted in before moving.