The District of Columbia Human Rights Act prohibits employment discrimination based on sex (including pregnancy, childbirth, related medical conditions, breastfeeding, or reproductive health disorders), marital status, family responsibilities, sexual orientation, and gender identity or expression (DC Code Sec. 2-1402.11).
"Sexual orientation" includes homosexuality, heterosexuality, and bisexuality, by preference or practice.
"Gender identity or expression" is a person's gender-related identity, appearance, expression, or behavior, regardless of the person's assigned sex at birth (DC Code Sec. 2-1401.02).
Discrimination based on sex includes sexual harassment. The Act applies to all employers in the District.