Md. Code Ann., Health Occ. § 19-307

(a) Subject to the provisions of subsections (b) and (c) of this section, a license authorizes the licensee to practice social work while the license is effective.

(b) A licensed social worker may practice social work only within the scope of the specific type of license issued by the Board.

(c) (1) A licensed bachelor social worker may not: (i) Engage in independent practice unless the licensed bachelor social worker is approved by the Board to engage in independent practice in accordance with § 19–302(f) of this subtitle; (ii) Make a clinical diagnosis of a mental or emotional disorder; (iii) Provide psychotherapy; or (iv) Engage in private practice. (2) A licensed master social worker may not: (i) Engage in independent practice unless the licensed master social worker is approved by the Board to engage in independent practice in accordance with § 19–302(f) of this subtitle; (ii) Treat mental or emotional disorders or provide psychotherapy without the supervision of a licensed certified social worker–clinical; (iii) Diagnose a mental disorder without the supervision of a licensed certified social worker–clinical; (iv) On or before December 31, 2019, engage in private practice without the supervision of a licensed certified social worker–clinical; or (v) On or after January 1, 2020, engage in private practice. (3) A licensed certified social worker may not: (i) Treat mental or emotional disorders or provide psychotherapy without the supervision of a licensed certified social worker–clinical; or (ii) Diagnose a mental disorder without the supervision of a licensed certified social worker–clinical.