What is the first step in the ISO arrival process?

• A. Confirm the ISO assignment
• B. Collect Information
• C. Confirm communication links
• D. Don appropriate PPE and position identifier

Answer: (A)

Confirming your ISO assignment is the first action because it establishes who you report to, your authority, and the scope of your safety responsibilities at the incident. Knowing your role upfront ensures you’re operating within the incident command structure, aligned with the incident objectives, and prepared to coordinate safety actions with the right people. Once that assignment is confirmed, you can move into gathering the briefing and scene information, establishing communication links to stay connected with the IC and safety channels, and donning PPE and a visible position identifier as required. These subsequent steps depend on having a clear authorization and understanding of your duties, so starting with the assignment prevents confusion and gaps in safety oversight.