Defective tools, material or equipment shall be identified as unsafe by ___.

Defective tools, materials, or equipment must be identified as unsafe to prevent accidents and injuries in the workplace. The process of identification can involve several methods, each serving to indicate that the item is not safe for use.

Physically removing a defective tool from the work area ensures that it cannot be used inadvertently by any workers. This method is effective in eliminating immediate risks. Locking the controls also serves as a critical safety measure by rendering the equipment inoperable, thereby preventing its use until it is repaired or replaced. Tagging is another essential practice; by placing a tag on the defective item, it communicates to everyone in the vicinity that the tool or equipment should not be used, helping to prevent accidental usage and potentially hazardous situations.

All of these methods are valid and effective in identifying unsafe equipment. Therefore, the correct choice encompasses all of these actions, reflecting a comprehensive approach to safety in the workplace.