Which of the following is NOT a valid Tier I personnel designation?

• A. EMT-B.
• B. Licensed Illinois Paramedic.
• C. PHRN.
• D. PHPA.

Answer: (A)

Tier I personnel are those with the highest level of clinical authority in the field, requiring professional licensure and an expanded scope of practice. In this system, the licensed Illinois paramedic, the prehospital registered nurse (PHRN), and the prehospital physician assistant (PHPA) all meet that standard because they are licensed clinicians with advanced prehospital capabilities and the ability to practice with substantial independence under medical oversight. An EMT-Basic, while a fundamental EMS credential, has a more limited scope focused on basic life support tasks and does not carry the expanded authority or licensure required for Tier I. So EMT-B is not a Tier I designation.