What NFPA number outlines professional competencies for EMS personnel during hazardous materials incidents?

The correct option outlines professional competencies for EMS personnel during hazardous materials incidents, specifically focusing on how EMS teams should operate and ensure safety in the context of hazardous materials. NFPA 473 establishes the necessary competencies and guidelines for safe practices, response protocols, and training for emergency medical services when dealing with hazardous situations. This includes procedures for assessing risks, managing patient care, and working alongside other emergency response teams effectively, ensuring that they are equipped to handle the unique challenges posed by hazardous materials incidents.

Understanding these competencies is essential for maintaining safety standards and providing effective medical care in potentially dangerous environments, which is why NFPA 473 is prominently referenced for EMS personnel training and operations in hazardous materials contexts.