What does RQ (Reportable Quantity) indicate in HAZMAT transport?

Reportable Quantity (RQ) indicates the specific amount of a hazardous material that, if released into the environment, must be reported to the appropriate authorities. This is crucial for ensuring a timely response to potential hazards posed by the materials. When a hazardous substance exceeds its RQ during transport or if it is accidentally released, it triggers legal obligations for reporting and response, minimizing risks to public safety and the environment.

In the context of transporting hazardous materials, understanding RQ is vital for compliance with regulations that govern hazardous material handling. This reporting requirement helps facilitate a controlled response to incidents, ensuring that emergency services can be mobilized effectively, thereby protecting public health and safety.