This Practice Note discusses the requirement that plaintiffs exhaust administrative remedies under Title VII of the Civil Rights Act of 1964 (Title VII), the Americans with Disabilities Act (ADA), the Genetic Information Nondiscrimination Act (GINA), and the Age Discrimination in Employment Act (ADEA) before suing a private employer in federal court. It also discusses time limits for filing charges before the Equal Employment Opportunity Commission (EEOC) and complaints in federal court, and what claims may be brought in those federal lawsuits.