Which statement is true regarding the control zones in a hazardous materials incident?

In hazardous materials incidents, the classification of control zones is crucial for ensuring safety and effective response operations. The hot zone is defined as the area immediately surrounding the incident site where hazardous materials are present, and it is accessible only to personnel who are properly equipped and trained in HAZMAT response. This zone has the highest level of contamination risk, and access is restricted to those who are essential to managing the situation.

The warm zone serves as a buffer area between the hot zone and the cold zone, where decontamination and monitoring occur. It typically includes equipment and personnel who have protective gear but are not directly involved in handling hazardous materials.

The cold zone, which includes the designated command post, is free of contamination and is where emergency management and coordination take place. It is essential for maintaining safety and providing support to those working in more dangerous zones.

By understanding these definitions, it becomes clear why the statement regarding the hot zone being the area that covers the incident site and necessary personnel is true. The other options mischaracterize the respective zones or their functions, leading to misunderstandings of the protective measures and safety protocols that must be in place during hazardous materials incidents.