What must the ignition officer have when igniting the fuel load?

The correct requirement for the ignition officer when igniting the fuel load is to have a charged hose line. This is essential because the charged hose line provides a ready source of water to control and extinguish any unforeseen fires that may arise during the ignition process. The ignition of fuel loads can create intense fires and potential hazards, hence having a charged hose line ensures that the ignition officer can respond swiftly to control the situation and maintain safety.

Having a charged hose line represents a proactive safety measure, allowing for immediate action should there be an uncontrolled flare-up or an emergency situation during the live fire exercise. While other safety equipment and personnel are important for overall fire operation safety, the charged hose line is critical in this specific context as it directly addresses the immediate fire management needs during the ignition phase.