When should one report under community right-to-know requirements?

Reporting under community right-to-know requirements is primarily focused on ensuring that local communities are aware of chemicals that may pose risks to public health and the environment. The correct answer reflects the importance of understanding the specific thresholds established for hazardous substances.

When using any listed substance above its threshold planning quantity, it is essential to report it to provide transparency regarding potentially hazardous chemicals present in the area. This threshold is set to catch significant quantities that could pose a risk in terms of exposure or environmental impact. By reporting such usage, the community, local emergency responders, and regulatory agencies can ensure they are prepared for any incidents that might arise and can take appropriate action to safeguard health and safety.

Other scenarios, while relevant to safety and awareness, do not trigger the same reporting obligations. For instance, simply storing more than 100 pounds of any substance may not necessarily involve a material that has been designated as hazardous or above its specified threshold. Similarly, training employees on safety and incidents involving hazardous materials are important, but they do not serve as the primary triggers for reporting requirements under community right-to-know laws.