Discrimination on the basis of a person’s sex or gender is treating someone unfavorably because of their sex. This type of discrimination can be found in a variety of areas. The U.S. Equal Employment Opportunity Commission identifies areas primarily in the workplace that sex discrimination is present. These areas like sex discrimination and work situations (hiring, firing, pay, job assignments, promotions, layoffs, and training), sex discrimination and harassment (unwelcome sexual advances, requests for sexual favors, or other verbal or physical harassment of a sexual nature), and sex discrimination and employment policies/practices.
The Department of Justice outlines sex discrimination in the education system. Title IV of the Civil Rights Act of 1964 and Title IX of the Education Amendments of 1972 prohibit discrimination based on sex in entities that receive federal funds. Regardless of sex, these measures work to ensure that people are provided an equal opportunity to be educated.
The Department of Justice lists a number of cases that they have dealt with on the bases of sex discrimination. There is a case that they resolved with Arcadia Unified School District in CA based on the mistreatment of a student due to that student being transgendered. It explains the application of the law on the basis of sex discrimination, and offers definitions of sex-based discrimination in this case, as well as gender expression. More information about that case and other cases can be found here: https://www.justice.gov/crt/educational-opportunities-cases#sex And for more information about sex discrimination in the workplace, please visit: https://www.eeoc.gov/laws/types/sex.cfm