How long must records of all medical destruction be maintained on file?

The correct answer, which indicates that records of all medical destruction must be maintained for three years, aligns with regulatory guidelines that specify record-keeping requirements in residential care settings. Maintaining this documentation for three years is essential because it allows facilities to demonstrate compliance with health regulations, supports quality assurance processes, and provides a historical account of medical waste management practices. Keeping these records for the designated duration ensures that any audits or inquiries can be adequately addressed, thereby enhancing the facility's accountability and operational integrity.

The other options do not meet the regulatory requirements outlined for such documentation, making them insufficient for compliance and potential legal liability. By adhering to the three-year record retention policy, facilities can ensure they maintain necessary oversight of potentially hazardous materials and demonstrate responsibility in their operations.