D.C. Code § 38-902
No school official, teacher, or member of the Board of Education shall receive any pecuniary benefit on account of school supplies or textbooks purchased for the use of the public schools in the District of Columbia.
Aug. 7, 1894, 28 Stat. 254, ch. 232
1973 Ed., § 31-1104.
1981 Ed., § 31-2202.
Purchase of school books and supplies, see § 38-701 et seq.