Annotation: The article provides the model and obtained design correlation for assessment of the State Emergency Service of Ukraine units' potential effectiveness during emergency response. These data enable comparative analysis of the units based on their mission effectiveness prospective. The model is built on modular approach where modules perform specific tasks with logical interconnection and informational sharing. The potential effectiveness of unit as a single integral system in emergency situations depends on the potential technical capability and unit’s personnel proficiency level to perform missions. The potential technical capacity characterizes the degree of staff compliance, technical readiness, resource, tactical and technical characteristics of weapons and equipment of the complexity performed tasks. The unit’s personnel proficiency level characterizes its professional ability to perform missions.