Md. Code, Criminal Law § 5–403

(a) Schedule II consists of each controlled dangerous substance:

(1) added to Schedule II by the Department under § 5–202(b) of this title; or

(2) designated as a Schedule II controlled dangerous substance by the federal government unless the Department objects under § 5–202(f) of this title.

(b) The Department may not add a substance to Schedule II under § 5–202 of this title unless the Department finds:

(1) a high potential for abuse of the substance;

(2) currently accepted medical use of the substance in the United States, or currently accepted medical use with severe restrictions; and

(3) evidence that abuse of the substance may lead to severe psychological or physical dependence.