Which entities regulate dental X-ray equipment safety in the United States?

• A. Nuclear Regulatory Commission (NRC) and state radiation control programs
• B. American Dental Association
• C. Food and Drug Administration
• D. Centers for Disease Control and Prevention

Answer: (A)

Dental X-ray equipment safety in the United States is overseen by a federal-state partnership. The Nuclear Regulatory Commission sets nationwide requirements for devices that produce ionizing radiation, and states administer radiation control programs that license facilities, inspect equipment, enforce shielding and exposure controls, and ensure operator training. Many states operate under agreements with the NRC, allowing them to carry out these safety duties locally. This combination—federal standards plus state enforcement—is what governs the safe use and operation of dental X-ray units. The FDA handles device safety and labeling, but not the day-to-day regulatory oversight of dental X-ray operations; the CDC is a public-health agency, and the ADA is a professional association, not a regulator.