(1) Application for a certificate authorizing the employment of workers with a disability shall be made upon forms made available by the director or authorized representatives.

(2) The application shall set forth, among other things, the nature of the disability, a description of the occupation at which the worker with a disability is to be employed, and the wage the employer proposes to pay the worker with a disability per hour. The nature of the disability must be set out in detail.

(3) The application shall be signed jointly by the employer and the worker with a disability for whom such application is being made, except as otherwise authorized by the director or an authorized representative.