What must covers support in order to ensure safety?

Covers must be designed to support the weight of both the worker and any equipment that might be on top of them. This is crucial because work environments often involve not just personnel, but also tools, machinery, and materials that can add significant weight. If a cover only supports the weight of a worker, it may not be safe if equipment is added or if multiple workers are present. Therefore, ensuring that covers can handle the cumulative weight of personnel and equipment helps prevent accidents and injuries, maintaining a safe work environment. This adherence to safety standards is aligned with the principles set forth in USACE EM 385-1-1, which emphasizes comprehensive risk assessment and safety measures at all work sites.