D.C. Code § 47-208
Estimates in detail shall be submitted annually for the employment of mechanics, laborers, and watchmen, and the purchase of coal, oils, waste, and other supplies for the maintenance of sewers.
June 27, 1906, 34 Stat. 494, ch. 3553
enacted, Apr. 9, 1997, D.C. Law 11-254, § 2, 44 DCR 1575
1973 Ed., § 47-206.
1981 Ed., § 47-208.