When does the Hazard Communication Standard require that employees receive training on the use of hazardous material?

The Hazard Communication Standard requires that employees receive training on the use of hazardous materials at the time of their initial assignment and whenever a new hazard is introduced into the workplace. This approach ensures that employees are not only familiar with the hazards they may encounter as they begin their work but also remain updated when new substances or materials are introduced.

This ongoing training is critical for maintaining a safe workplace and ensuring that employees can effectively identify and respond to new risks. Initial training sets the foundation, while additional training helps adapt to changes in materials or procedures, thereby fostering a culture of safety and compliance within the organization.

The other options suggest less frequent or inadequate training methods that do not align with the dynamic nature of workplace hazards, where new materials may be introduced, or where existing materials may present new risks. Regular, immediate training provides the necessary education to manage these hazards effectively.