When should size-up occur during an emergency evaluation process?

Size-up is a critical component of the emergency evaluation process and should happen at multiple points to ensure effective management of the situation. Conducting a size-up during the preincident period allows firefighters and incident command to anticipate potential hazards and prepare resources accordingly.

Additionally, size-up should occur while responding to the incident, as this enables responders to gather information about the situation from observations and reports of witnesses or dispatch. Upon arrival, size-up continues as it assesses the current conditions, including smoke, fire behavior, and any potential threats to life or property. This continuous evaluation helps in making informed decisions about resource allocation, tactics, and safety measures throughout the incident.

This comprehensive approach to size-up ensures that personnel are adequately prepared and that there is a clear understanding of the evolving nature of the incident, leading to a more effective response.