District of Columbia Code
Chapter 13C - Prohibition on Discrimination against the Unemployed
§ 32–1363. Retaliation unlawful

No employer or employment agency shall:
(1) Interfere with, restrain, or deny the exercise of, or the attempted exercise of, any right provided under this chapter; or
(2) Fail or refuse to hire, or discharge, any employee or potential employee because the employee or potential employee:
(A) Opposed any practice made unlawful by this chapter;
(B) Has filed any charge, or has instituted or caused to be instituted any proceeding, relating to any right provided under this chapter;
(C) Has given, or is about to give, any information in connection with any inquiry or proceeding relating to any right provided under this chapter; or
(D) Has testified, or is about to testify, in any inquiry or proceeding relating to any right provided under this chapter.
(May 31, 2012, D.C. Law 19-132, § 4, 59 DCR 2391.)