Maryland Code, Education § 7-128

(a) In this section, “next most rigorous subject matter course” includes an honor course, an Advanced Placement course offered by the College Board, an International Baccalaureate course, and a gifted and talented course.

(b) Each middle and high school shall, after a student has demonstrated readiness in a subject matter, encourage enrollment in the next most rigorous subject matter course available in the school, and, to the extent practicable, enroll the student in the next most rigorous subject matter course.

(c) Each middle and high school shall seek to enroll each student in the next most rigorous subject matter course in accordance with subsection (b) of this section without regard to the student's race, ethnicity, sex, sexual orientation, gender identity, religious beliefs, address, disability status, socioeconomic status, or the language spoken in the student's home.