Which of the following actions is part of the response protocol in a hazmat situation?

Isolating the area and denying entry is a crucial part of the response protocol in a hazardous materials situation because it helps to protect both responders and the public from potential exposure to harmful substances. This action allows responders to establish a safe perimeter, preventing individuals from inadvertently entering a contaminated zone where they could face serious health risks. By controlling access to the area, emergency responders can manage the situation more effectively, assess the threat, and implement appropriate containment and mitigation strategies without risking further exposure or contamination. This protocol is vital to ensuring the safety of everyone involved and helps facilitate a more organized and efficient response to the hazmat incident.