The director may promulgate rules pursuant to chapter 1-26 to protect the insurance-buying public with regard to disability income policies. However, the director shall take into account the effect any such rule may have on the availability of coverage. The rules may include:
(1) Definition of terms;
(2) Permissible exclusions;
(3) Return of premium provisions;
(4) Terms of renewability;
(5) Disclosure requirements;
(6) Benefit triggers, if such rules permit the use of activities of daily living as an acceptable benefit trigger; and
(7) Limitations, exceptions, and reductions.