A multiple employer self-insured health plan shall include aggregate excess stop-loss coverage and individual excess stop-loss coverage provided by an insurer licensed by the state. Aggregate excess stop-loss coverage shall include provisions to cover incurred, unpaid claim liability in the event of plan termination. The excess or stop-loss insurer shall bear the risk of coverage for any member of the pool that becomes insolvent with outstanding contributions due. In addition, the plan shall have a participating employer's fund in an amount at least equal to the point at which the excess or stop-loss insurer shall assume 100 percent of additional liability. A plan shall submit its proposed excess or stop-loss insurance contract to the Commissioner at least 30 days prior to the proposed plan's effective date and at least 30 days subsequent to any renewal date. The Commissioner shall review the contract to determine whether it meets the standards established by this chapter and respond within a 30 day period. Any excess or stop-loss insurance plan cannot be canceled without 90 days' notice to the insured and the Commissioner.