D.C. Code § 38-2001.17
None of the money mentioned in this subchapter shall be assignable, either in law or equity, or be subject to execution or levy by attachment, garnishment, or other legal process.
Jan. 15, 1920, 41 Stat. 390, ch. 39, § 17
June 11, 1926, 44 Stat. 731, ch. 556, § 1
1973 Ed., § 31-718.
1981 Ed., § 31-1217.