Final answer:
A CD 1551 form is used for a 360-degree performance appraisal where multiple individuals rate an employee's performance. The person being evaluated, the person conducting the evaluation, and the person's supervisor are required to fill out the form.
Step-by-step explanation:
A CD 1551 form is used for a 360-degree performance appraisal where supervisors, customers, direct reports, peers, and the employee themselves rate the employee's performance.
The person required to fill out a CD 1551 form is the person being evaluated. They will provide self-ratings on their own performance.
The person conducting the evaluation, such as the supervisor or manager, will also fill out the form to provide ratings and feedback on the employee's performance.
The person's supervisor is also required to fill out the CD 1551 form to provide ratings and feedback on the employee's performance.
The person's subordinates, however, are not typically required to fill out the CD 1551 form as their input is not considered in this specific type of appraisal.