Which of the following is NOT one of the four key actions to mitigate dangerous situations in firefighting?

Conducting physical fitness assessments is not typically considered one of the four key actions to mitigate dangerous situations in firefighting. The primary focus in mitigating dangerous situations includes actions that directly impact safety and operational readiness during an active incident.

Air monitoring, for example, is crucial for understanding the environment and identifying hazards such as toxic gases or insufficient oxygen levels, which are immediate concerns in firefighting situations. Establishing evacuation procedures ensures that all personnel are aware of how to safely exit a dangerous environment if conditions deteriorate. Ensuring that a Rapid Intervention Crew (RIC) is available and ready to act embodies the principle of preparedness, providing a dedicated team for rescue operations should a firefighter become trapped or endangered.

In contrast, while physical fitness assessments are important for overall preparedness and effectiveness in firefighting roles, they do not directly address the immediate actions necessary to mitigate dangers during an active firefighting incident. Fitness is a component of a firefighter's ability to perform, but it is less about real-time incident management or hazard mitigation.