When determining a hazardous material response, should occupants showing signs and symptoms of illness shelter in place?

In situations involving potential hazardous materials, it is crucial to ensure the safety of all individuals involved, including both responders and occupants. When occupants are showing signs and symptoms of illness, sheltering in place could potentially expose them to further harm, especially if the source of the hazard is present in their environment.

Instead, individuals exhibiting illness should ideally evacuate the area if the hazard allows it, as remaining in place could worsen their condition due to continued exposure to harmful substances. Additionally, the standard protocols typically suggest that individuals should seek medical evaluation without delay, particularly if they display acute symptoms related to hazardous material exposure.

The option suggesting that individuals should shelter in place only if advised by authorities reflects a situation where guidance and evaluations are critical to ensure safety. However, when signs of illness are evident, a prompt response rather than waiting for additional direction is usually prioritized to ensure the well-being of those affected.

Thus, the correct choice to indicate that occupants should not shelter in place when showing signs and symptoms of illness emphasizes the importance of immediate safety measures in hazardous material incidents.