(a) A rate is unreasonably low for the insurance coverage provided if it is unreasonably low in
relation to anticipated losses or expenses, or both, or to the uncertainty of loss for the insurance
coverage provided.
(b) Applicants who are in good faith entitled to procure the insurance through ordinary methods
are the persons who are eligible persons, as defined in section 2103(1) or (2) of the code, MCL
500.2103, with respect to that insurance.
History: 1981 AACS; 2021 AACS.
R 500.1505 Unfairly discriminatory rates.
Rule 5. (1) For purposes of section 2109(1)(c) of the code, MCL 500.2109, a rate for a coverage
is unfairly discriminatory in relation to another rate for the same coverage if the differential
between the rates is not reasonably justified by differences in losses, expenses, or both, or by
differences in the uncertainty of loss, for the individuals or risks to which the rates apply. A
reasonable justification must be supported by a reasonable classification system; by sound
actuarial principles when applicable; and by actual and credible loss and expense statistics or, in
the case of new coverages and classifications, by reasonably anticipated loss and expense
experience.
(2) A rate is not unfairly discriminatory because it reflects differences in expenses for individuals
or risks with similar anticipated losses, or because it reflects differences in losses for individuals
or risks with similar expenses.
(3) A reasonable classification system is a system designed to group individuals or risks with
similar characteristics into rating classifications that are likely to identify significant differences
in mean anticipated losses or expenses, or both, between the groups, as determined by sound
actuarial principles and by actual and credible loss and expense statistics or, in the case of new
coverages or classifications, by reasonably anticipated loss and expense experience.
(4) Sound actuarial principles must include, but are not limited to, all of the following principles:
(a) That data used in developing classifications and rates are derived from the experience of a
population or sample of risks that is sufficiently similar to the anticipated insured population so
that the statistics obtained can reasonably be expected to produce representative and reliable
estimates of the anticipated loss and expense experience for the insured population and are
calculated in a manner that is suitable to their intended use.
(b) That a reasonable predictive relationship can be demonstrated to exist between a
characteristic used in defining a rating classification and anticipated losses, anticipated expenses,
or the uncertainty of loss for the risks to which the classification applies.
(c) That if rates for individual rating cells are calculated by means of arithmetic combinations of
relativities for the classifications defining those rating cells, the relativities are combined in a
manner that equitably reflects the anticipated loss and expense experience for those rating cells.
(d) That sampling techniques used in developing classifications and in estimating loss and
expense experience are suitable to their intended application.
(e) That with regard to private passenger automobile insurance and private residential property
insurance, rates for an insurance coverage provided are established in a manner that can reasonably
be anticipated to produce loss ratios that are substantially uniform among the classifications, kinds,
or types of individuals or risks to which the rates apply. Evaluation of loss ratios must make
appropriate adjustments for differences in deductibles and limits of liability among insureds, for
expense provisions that are not allocated to premiums on a percentage-of-premium basis, and for
Page 3