Which control is most characteristic of ionizing radiation safety in the workplace?

• A. Only administrative controls are used
• B. PPE is the sole control
• C. Shielding and regulatory controls are primary for ionizing radiation hazards
• D. Non-ionizing radiation does not require shielding

Answer: (C)

Ionizing radiation safety hinges on reducing exposure at the source and through governance that enforces safe limits. Shielding physically attenuates radiation, lowering the dose that workers receive, and regulatory controls provide the framework: dose limits, monitoring, licensing, training, and procedures that ensure operations stay within safe bounds. Administrative controls and PPE are important parts of a safety program, but they aren’t the primary means of protection because shielding tackles the exposure directly and regulatory requirements establish the mandatory limits and oversight. The idea that non-ionizing radiation doesn’t require shielding isn’t accurate for workplace safety in this context; each type of radiation has its own appropriate controls, with ionizing radiation mainly controlled through shielding and regulatory measures.