The department shall determine a schedule of fees to defray the costs of the registration programs established in sections 774 and 775. Fees may not exceed $150 for registrants under section 774 or $75 for registrants under section 775. The fees collected must be placed in the Radon Relief Fund established in section 784. The fee schedule must provide for initial registration and biennial registration fees.   [PL 1989, c. 657, §1 (NEW).]