What action must an Orange 1 worker take when approaching a radiation danger sign?

• A. An Orange 1 person may not enter or perform work independently past a rad sign
• B. Proceed past the sign
• C. Wear a dosimeter
• D. Ignore and continue

Answer: (A)

A radiation danger sign marks a boundary of a restricted area with potential exposure. You must not enter or do any work beyond that point on your own. The correct action is to stop and follow the site's entry requirements—seek authorization or be escorted by a trained radiological control person, and use the required dosimetry and protective measures as prescribed. Wearing a dosimeter is part of the safety program, but it does not by itself authorize crossing the boundary. Proceeding past the sign or ignoring it would violate safety rules and increase your radiation risk.