It is illegal for an employer to fire, demote, harass or otherwise "retaliate" against an individual for filing a charge of discrimination, participating in a discrimination proceeding, or otherwise opposing discrimination. The same laws that prohibit discrimination based on race, color, sex (including sexual harassment), religion, national origin, age, and disability, as well as wage differences between men and women performing substantially equal work, also prohibit retaliation against individuals who oppose unlawful discrimination or participate in an employment discrimination proceeding.

In addition to the protections against retaliation that are included in all of the laws enforced by EEOC, the Americans with Disabilities Act (ADA) also protects individuals from coercion, intimidation, threat, harassment, or interference in their exercise of their own rights or their encouragement of someone else's exercise of rights granted by the ADA.