How long must a licensee maintain records of individual doses, bioassays, and release of radioactive effluents?

The correct answer reflects the regulatory requirement that licensees must uphold records concerning individual doses, bioassays, and releases of radioactive effluents until termination of the license. Keeping these records for the duration of the license is vital for safety and regulatory compliance, as it allows for adequate tracking of exposure and effluent management.

Maintaining these records ensures that the facility can provide evidence of safety practices and compliance with the law, which can be reviewed during inspections or audits. The termination of the license signifies a change in operational status, at which point the records must either be transferred to the licensing authority or maintained for a specified period as dictated by regulatory requirements.

The other responses do not align with regulatory standards; for example, maintaining records only until the end of a fiscal year, for a minimum of five years, or indefinitely without specific legal parameters does not encompass the full responsibility established by radiation safety regulations. These measures focus on accountability and provide a historical context that is essential for understanding the safety practices of an organization throughout its operational history.