For how long must an employer retain employee medical records?

The correct answer reflects regulatory requirements established by the Occupational Safety and Health Administration (OSHA) regarding the retention of employee medical records. According to OSHA standards, employers must maintain medical records for employees for a period of 30 years after the employee's last date of employment. This long retention period ensures that pertinent medical information is available for reference should any health-related claims arise, particularly those related to occupational exposures or long-term health effects that may manifest years after employment has ended. Employers are also required to provide access to these records to employees or their representatives, supporting transparency and an informed workforce regarding any potential health risks encountered while on the job.

Given this requirement, the other options do not align with OSHA regulations, which set the standard retention period at 30 years.