Md. Code Ann., Ins. § 19-107
(a) An insurer may not refuse to issue or renew a contract of motor vehicle insurance, property insurance, or casualty insurance solely because the subject of the risk or the applicant's or insured's address is located in a certain geographic area of the State unless:
Added by Acts 1996, c. 11, § 1, eff. Oct. 1, 1997.
Formerly Art. 48A, § 61A.