According to federal law on radiation protection, what are two requirements for signage in radiation areas?

The correct response highlights the importance of proper signage in radiation areas as mandated by federal regulations. Specifically, signage must clearly indicate the presence of radiation and the associated hazards to ensure that personnel and the public are adequately informed. This is crucial for maintaining safety standards in environments where radiation exposure can occur.

The requirement for personnel dose records complements the signage by providing a means for tracking and monitoring individual exposures to radiation. This tracking is essential to adhere to safety regulations and to protect workers from exceeding allowable exposure limits.

Other options do not align with the key federal mandates for radiation areas. While exposure times and proximity warnings (as referenced in a choice) may be important for operational safety, they do not constitute the fundamental requirements of signage. Similarly, safety gear rules, personnel training records, unrestricted access, and equipment maintenance logs, while valuable for overall radiation safety and operational procedures, do not specifically pertain to the requirements for signage in radiation-dedicated areas.