of material changes in any information which was required to be submitted with the application for the certification under this part shall be filed in such form and manner as shall be prescribed by the applicable authority by regulation. The applicable authority may require by regulation prior notice of material changes with respect to specified matters which might serve as the basis for suspension or revocation of the certification. (e) Reporting Requirements for Certain Association Health Plans An association health plan certified under this part which provides benefit options in addition to health insurance coverage for such plan year shall meet the requirements of section 103 by filing an annual report under such section which shall include information described in subsection (b)(6) with respect to the plan year and, notwithstanding section 104(a)(1), shall be filed with the applicable authority not later than 90 days after the close of the plan year (or on such later date as may be prescribed by the applicable authority). The applicable authority may require by regulation such interim reports as it considers appropriate. (f) Engagement of Qualified Health Actuary The board of trustees of each association health plan which provides benefits options in addition to health insurance coverage and which is applying for certification under this part or is certified under this part shall engage, on behalf of all participants and beneficiaries, a qualified health actuary who shall be responsible for the preparation of the materials comprising information necessary to be submitted by a qualified health actuary under this part. The qualified health actuary shall utilize such assumptions and techniques as are necessary to enable such actuary to form an opinion as to whether the contents of the matters reported under this part— (1) are in the aggregate reasonably related to the experience of the plan and to reasonable expectations