Maryland Statutes
Part II - Rate Making -- in General
Section 11-213 - Special Rate Making Principles

(a)    All homeowner’s insurance rates shall be made in accordance with the principles set forth in this section.
    (b)    (1)    An insurer under a homeowner’s insurance policy may not classify or maintain an insured for a period longer than 3 years in a classification that entails a higher premium because of a specific claim.
        (2)    For the purpose of determining whether to classify an insured in a classification that entails a higher premium, an insurer may review only a period not greater than 3 years before:
            (i)    if the policy has not yet been issued:
                1.    the date of the application; or
                2.    the proposed effective date of the policy; or
            (ii)    on renewal of a policy, the effective date of the renewal.
        (3)    (i)    The removal of, reduction of, or refusal to apply a discount is not a violation of this subsection if the claim resulting in the removal of, reduction of, or refusal to apply the discount was filed not more than 5 years before the removal, reduction, or refusal.
            (ii)    Subparagraph (i) of this paragraph may not be construed to prevent an insurer from granting a claim–free discount to an insured.

Structure Maryland Statutes