Understanding Employment Discrimination
Employment discrimination means treating a worker or job applicant unfairly because of a personal characteristic that the law protects, rather than because of their qualifications or performance. It can appear at any stage of the employment relationship: recruiting, hiring, job assignment, pay, training, promotion, discipline, and termination. Understanding the categories and the legal tests that courts use is the first step to recognizing it.
The Protected Characteristics
Several federal statutes, enforced primarily by the U.S. Equal Employment Opportunity Commission, prohibit discrimination on the basis of specific characteristics:
- Race and color — protected under Title VII of the Civil Rights Act of 1964.
- National origin — ancestry, ethnicity, accent, or association with a particular nation or region.
- Sex — including pregnancy, sexual orientation, and gender identity, as clarified by the Supreme Court in Bostock v. Clayton County (2020).
- Religion — including the duty to reasonably accommodate sincerely held beliefs and practices.
- Age — workers age 40 and older, under the Age Discrimination in Employment Act (ADEA).
- Disability — under the Americans with Disabilities Act (ADA), including the right to reasonable accommodation.
- Genetic information — under the Genetic Information Nondiscrimination Act (GINA).
State and local laws frequently extend these protections further, adding categories such as marital status, source of income, or arrest and conviction history. Because coverage varies, the general rules described here are a starting point, not a substitute for checking the law that applies where you live and work.
Two Ways the Law Sees Discrimination
Courts generally analyze discrimination claims through two frameworks. The distinction matters because it changes what a person has to prove.
Disparate Treatment
Disparate treatment is intentional discrimination: an employer treats someone less favorably specifically because of a protected characteristic. Proof can be direct — a discriminatory remark or written policy — but more often it is circumstantial, built from patterns, shifting explanations, or comparisons with similarly situated coworkers who were treated better. The classic framework from McDonnell Douglas Corp. v. Green (1973) lets a worker establish an initial case, after which the employer must offer a legitimate, non-discriminatory reason, which the worker may then show is a pretext.
Disparate Impact
Disparate impact targets policies that are neutral on their face but fall more harshly on a protected group and are not justified by business necessity. A hiring test, a grooming rule, or a recruitment practice can be unlawful even without any intent to discriminate if it screens out one group at a significantly higher rate and a fairer alternative exists. The Supreme Court recognized this theory in Griggs v. Duke Power Co. (1971), a foundational decision in American civil-rights law.
Harassment and Retaliation
Discrimination law also forbids harassment that is severe or pervasive enough to create a hostile work environment, and it protects people who assert their rights. Retaliation — punishing someone for complaining about discrimination, filing a charge, or participating in an investigation — is itself unlawful and is one of the most commonly filed claims each year, according to EEOC enforcement data.
Why the Categories Are Not Always Obvious
Modern discrimination is rarely announced. It hides inside subjective decisions, informal networks, and policies that sound reasonable until you examine who they exclude. That is why understanding the legal tests — and the public cases that applied them — is so useful. To see how a neutral-sounding hiring standard can conceal race and national-origin bias, read our guide to appearance and “brand image” discrimination in retail hiring. To learn what to do if you believe you have experienced discrimination, visit how the EEOC complaint process works.