Must be printed in Landscape format with instructions on back. Employer Information: - The employer must have a completed front and back yellow work permit form on file before a minor begins work.Employers must complete a CA-7 for minors who start employment at 16 years of age. The purpose of the CA-6 form is to provide official permission for minors to work legally in Michigan. Read this article to learn about workplace safety and the laws your employer must follow to create a safe working environment. Permitted and prohibited jobs are described in the related links below. Many employers preprint employer information on the form and have the employee complete the necessary. 9 Form (Federal) The 9 form verifies an employee's identity and certifies that the employee is legally allowed to work in the United States.