D.C. Code § 3-1208.02
Licensed graduate social worker.
(a) The Board of Social Work shall license as a graduate social worker a person who, in addition to meeting the requirements of subchapter V of this chapter , except the examination requirement under § 3-1205.06 , has a master's degree or a doctorate from a social work program accredited by the Council on Social Work Education.
(b) A licensed graduate social worker (“L.G.S.W.”) may perform any function described as the practice of social work in this chapter, other than psychotherapy, under the supervision of a social worker licensed under § 3-1208.03 or § 3-1208.04 , and may perform psychotherapy under the supervision of a social worker licensed under § 3-1208.04 .
(c) To renew their license as a licensed graduate social worker, a person shall, prior to the first time renewing their license, either:
(1) Pass a national examination or
(2) Obtain 1,500 hours in the practice of social work under the supervision of a social worker licensed under §§ 3-1208.03 or 3-1208.04 .