Md. Code Ann., Tax-Gen. § 10-401
In computing the adjustments under §§ 10-206 and 10-210 of this title, a nonresident shall allocate to the State income, losses, or adjustments derived in connection with a business that is carried on both in and out of the State and of which the nonresident is a partner, shareholder of an S corporation, or proprietor, or in connection with an occupation, profession, or trade carried on both in and out of the State by:
Added by Acts 1988, c. 2, § 1, eff. Jan. 1, 1989. Amended by Acts 1988, c. 430, § 4; Acts 1988, c. 664, § 3; Acts 1988, c. 756, § 3; Acts 1989, c. 178, § 2, eff. July 1, 1989.
Formerly Art. 81, § 287.