What is indicated by an incident being classified as "Non-Defendable"?

An incident classified as "Non-Defendable" indicates that there is no LCES (Lookouts, Communications, Escape Routes, Safety Zones) in place. This classification suggests that the conditions of the incident make it impossible to safely defend structures or areas against an advancing fire. In situations where LCES is absent, it implies a lack of necessary safety protocols and resources that ensure the safety of firefighting personnel.

When LCES is not established, it greatly increases the risk levels for responders, making it crucial for them to either evacuate or not engage in defensive firefighting strategies. The absence of any safety measures designated by LCES directly correlates to the determination that the incident is non-defendable.