Why is a supplemental adjustment performed?

The highest level of risk posed by a substance is represented in the NFPA 704 placard system by the number:

A) 6. B) 1. C) 3. D) 4.

What provides an ongoing education on when and how to rehabilitate?

A) NFPA 1521 B) NFPA 1584 C) NFPA 1500 D) NFPA 1561