What is a primary requirement for a control area regarding hazardous materials?

A primary requirement for a control area regarding hazardous materials is that it must be enclosed and bounded with structural barriers. This is essential to ensure containment and protect both personnel and the environment from potential exposure to hazardous substances. Structural barriers help to prevent the escape of harmful materials into uncontrolled areas, reducing the risk of accidents and ensuring that any hazards are managed within a designated space.

The focus on enclosures is based on safety regulations that aim to minimize risk and facilitate proper handling and storage of hazardous materials. Such barriers also allow for effective monitoring and restrict unauthorized access, which is crucial in maintaining an organized and safe environment.

While there may be considerations regarding material quantities and public accessibility, these factors do not prioritize the fundamental safety and containment issues that structural barriers address. Having unrestricted access to public spaces or nearby locations can pose significant safety risks, which is why enclosing control areas with barriers is a critical requirement.