A. Subject to rules and regulations that have been approved by the director as reasonable, each workers’ compensation rating organization shall permit any insurer writing workers’ compensation insurance in this state to become a member. The rating organization shall give its members notice of proposed changes in its rules and regulations.

B. Each rating organization shall furnish its rating services without discrimination to its members.

C. Any member or insurer may request that the director review the reasonableness of any rule or regulation in its application to members at a hearing held on at least ten days’ written notice to the rating organization and to the member or insurer. If the director finds that the rule or regulation is unreasonable in its application, the director shall order that the rule or regulation does not apply.

D. Every insurer writing workers’ compensation insurance in this state shall be a member of one workers’ compensation rating organization.

E. A rating organization shall have as members at least five insurers authorized to write and who are writing workers’ compensation insurance in this state and whose combined experience is determined by the director to be reasonably adequate for rate making purposes.