The U.S. Equal Employment Opportunity Commission enforces Federal laws prohibiting employment discrimination. These laws protect employees and job applicants against employment discrimination when it involves:

• Unfair treatment because of race, color, religion, sex (including pregnancy, gender identity, and sexual orientation), national origin, age (40 or older), disability or genetic information.
• Harassment by managers, co-workers, or others in the workplace, because of race, color, religion, sex (including pregnancy), national origin, age (40 or older), disability or genetic information.
• Denial of a reasonable workplace accommodation that the employee needs because of religious beliefs or disability.
• Retaliation because the employee complained about job discrimination, or assisted with a job discrimination investigation or lawsuit.

https://www.eeoc.gov/employers