Which type of time record keeping policy is not typically required?

The correct choice is based on the general context of workplace policies regarding record-keeping for various types of employee time. Keeping records of vacation time, overtime, and training hours are typically required by employers for various regulatory and operational reasons.

Vacation time and overtime are often subject to legal regulations and impact payroll calculations, which make accurate tracking essential. Training hours may also be required to ensure compliance with industry standards and to assess employee development needs.

On the other hand, while tracking an employee's illness when they take sick leave is important from a management perspective, it is not always required in the same formal sense as other categories. The reasons might include privacy concerns regarding health information, and many employers have policies that focus more on the fact that the individual took sick leave rather than documenting the illness itself.

Thus, it is not typical for employers to require detailed records of the nature or specifics of an employee's illness when they are out sick, especially when considering regulations like HIPAA which emphasize confidentiality regarding personal health information.