D.C. Code § 24-263.04
The Public Service Commission shall determine the maximum rate for operator-assisted calls made from phones utilized by incarcerated residents of a penal or correctional institution in the District.
Apr. 27, 2001, D.C. Law 13-280, § 5, 48 DCR 1885
Apr. 21, 2023, D.C. Law 24-344, § 19(e)