The rates and premiums charged for insurance policies to which this chapter applies may include surcharge rates sufficient to offset the adjusted assessments made under this chapter and paid to the association by member insurers, and these surcharge rates may not be considered excessive because they contain an amount reasonably calculated to offset the full amounted of adjusted assessments paid by member insurers. The association shall notify the director of each surcharge percentage determined by the association, and this surcharge percentage shall be the maximum surcharge rate that may be applied by member insurers related to the assessment, except that a member insurer may make application to the director to apply a higher surcharge rate. The amount charged on a policy shall be shown separate from the premium for coverage on the policy. The surcharge rate is not considered a premium and is not subject to the premium tax imposed under AS 21.09.210.