Md. Code Ann., Tax-Gen. § 7-303
(a) Except as provided in subsection (b) of this section, the Maryland estate tax does not apply to the transfer of personal property in an estate of a nonresident decedent, if, at the time of death, the decedent is a resident of a state or foreign country whose law, when the personal property is transferred:
Added by Acts 1988, c. 2, § 1, eff. Jan. 1, 1989.
Formerly Art. 81, § 174.