HAZMAT CDL Practice Test 2026 – All-In-One Resource to Ensure Exam Success!

The first action to take during a hazardous materials emergency is to keep people away from the area. This is crucial for ensuring safety and reducing the risk of exposure to hazardous substances. By establishing a safe perimeter around the incident site, you can prevent additional injuries to bystanders or untrained individuals who might inadvertently enter a dangerous situation.

Maintaining distance from the area allows trained emergency responders to assess and manage the situation without the complicating factor of additional individuals in harm's way. This action is also in line with basic emergency response principles, which emphasize the protection of human life and minimizing potential exposure to hazardous materials as a top priority.

While calling emergency services, evacuating the area, and assessing the situation are all important actions that follow, the immediate priority in an emergency scenario is to prevent people from entering the danger zone until qualified personnel can respond.