Maryland Insurance Section 15-209

      (a)      (1)      Subject to subsection (b) of this section, each policy of health insurance shall contain the following provision:

      "Grace period: A grace period of ........ (insert a number not less than `7' days for weekly premium policies, `10' days for monthly premium policies and `31' days for all other policies) days will be granted for the payment of each premium falling due after the first premium, during which grace period this policy shall continue in force."

            (2)      A policy shall provide a grace period of 31 days if the policy:

                  (i)      allows the policyholder to choose any one of two or more modes of premium payment by remitting an amount stated in the policy for that particular mode of payment; and

                  (ii)      does not require a formal request by the policyholder to change the mode of premium payment.

      (b)      A policy in which the insurer reserves the right to refuse renewal shall state the following provision at the beginning of the provision set forth in subsection (a)(1) of this section:

      "Unless not less than thirty days prior to the premium due date the insurer has delivered to the insured or has mailed to his last address as shown by the records of the insurer written notice of its intention not to renew this policy beyond the period for which the premium has been accepted."