Define "secondary containment."

The definition of "secondary containment" specifically refers to the implementation of additional barriers that are designed to prevent hazardous materials from leaking or escaping from their primary containers. This approach is essential in preventing environmental contamination and ensuring safety, especially in scenarios where primary containers may fail due to factors such as corrosion, mechanical failure, or human error.

Secondary containment systems can include physical structures such as dikes, walls, or specially designed containers that hold the primary containers. When hazardous substances are being stored or used, having this additional layer of containment helps to capture any spills or leaks, minimizing the risk of spreading hazardous materials into the environment.

The other options relate to different aspects of hazardous materials management but do not capture the specific purpose of secondary containment. For instance, tracking hazardous materials during shipping pertains to transportation logistics, protective gear focuses on worker safety, and regulatory measures pertain to compliance standards rather than the physical containment of materials. Understanding secondary containment is critical for anyone involved in hazardous materials management to prevent accidents and safeguard public health and the environment.