In the context of NIMS safety officers, ISO stands for which role?

• A. International Safety Officer
• B. Internal Safety Officer
• C. Incident Safety Officer
• D. Information Security Officer

Answer: (C)

In NIMS/ICS, the ISO is the Incident Safety Officer. This person is the on‑scene safety lead, tasked with identifying hazards, assessing risks, and implementing safety controls to protect responders and the public. The ISO works with the Incident Commander to address safety concerns, has the authority to halt unsafe operations, and coordinates safety measures across the incident. The other terms don’t fit this framework: International Safety Officer suggests a global scope, Internal Safety Officer isn’t a defined ICS role, and Information Security Officer deals with protecting information systems rather than on‑scene safety.