What are the qualifications of a scientific member of an advisory committee?

What are the qualifications of a scientific member of an advisory committee?
People nominated as scientific members must be technically qualified experts in their field, such as

clinical medicine
engineering
biological and physical sciences
biostatistics
food sciences

They also must have experience interpreting and analyzing detailed scientific data, and understanding its public health significance.

For example, people nominated for the Clinical Chemistry and Clinical Toxicology Devices Panel in the Center for Devices and Radiological Health should be doctors of medicine or philosophy with experience in clinical chemistry, clinical toxicology, clinical pathology, clinical laboratory medicine, endocrinology, or oncology.

In another example, people nominated for the Drug Safety and Risk Management Advisory Committee in the Center for Drug Evaluation and Research should be knowledgeable in risk communication, risk management, drug safety, and medical, behavioral, and biological sciences as they apply to risk management and drug abuse.

open here please:
What are the qualifications of a scientific member of an advisory committee?