Which signage is required in radiation areas?

• A. No Signage
• B. Radiation Area Signage Is Required
• C. Biohazard Signage Only
• D. Exit Sign Only

Answer: (B)

Signage warning about radiation exposure must be posted where x-ray equipment is used. This informs anyone entering that ionizing radiation could be present and prompts appropriate precautions to minimize exposure. The sign usually shows the radiation trefoil symbol and text like “Radiation Area” or “Caution: Radiation Area,” which helps control access and remind staff and patients to follow shielding and safety practices.

Biological hazard signs are for biohazards, not radiation, so they don’t fulfill this purpose. An exit sign alone communicates egress but not the presence of a radiation hazard, so it doesn’t meet the safety requirement either. Without proper radiation area signage, people may enter unaware of the risk, which is unsafe and often noncompliant with safety regulations.