Which restriction applies to pregnant workers regarding zone entry?

• A. Not enter Zone 3
• B. Must always wear a dosimeter in Zone 1
• C. Not enter Zone 3 unless approved by RHP or delegate
• D. No restriction on zone entry

Answer: (C)

The situation hinges on protecting a pregnancy from radiation exposure by limiting access to higher-risk areas. Zone 3 is the most restricted radiological area, so entry for a pregnant worker isn’t automatic. It requires a formal risk review and authorization before entry. That authorization comes from the Radiation Health Physics group (RHP) or a delegate who is empowered to assess the anticipated fetal dose, review shielding and work controls, and decide whether the task can be done safely or should be redirected to stay in lower zones.

This is why the best choice is the option stating that entry to Zone 3 isn’t allowed unless approved by RHP or their delegate. It reflects the need for an approved, documented process to minimize fetal exposure while still allowing work when safely justified. The other notions—such as a blanket prohibition of Zone 3, or a blanket requirement to wear a dosimeter in Zone 1—don’t capture the pregnancy-specific restriction as precisely.