Iowa Code Title III. Public Services and Regulation [Chs. 80-122C] § 87.6. Certificate of approval

When such scheme or plan is approved by the workers' compensation commissioner, the commissioner shall issue a certificate to that effect, whereupon it shall be legal for such employer, or group of employers, to contract with any or all of the workers of the employer or group of employers to substitute such scheme or plan for the provisions relating to compensation and insurance during a period of time fixed by the insurance division of the department of insurance and financial services.