Which practice remained legal after the passage of the Civil Rights Act of 1964?

The practice of restricting housing for non-citizens remained legal after the passage of the Civil Rights Act of 1964 because the Act primarily focused on prohibiting discrimination based on characteristics such as race, color, religion, sex, or national origin in various areas, including housing. However, it did not specifically address the rights of non-citizens in regards to housing. Therefore, landlords and housing providers maintained the ability to impose restrictions based on citizenship status.

In contrast, discrimination based on sexual orientation, redlining based on neighborhood demographics, and housing discrimination based on age are all practices that are either directly or indirectly addressed in subsequent housing legislation and court rulings. The Fair Housing Act of 1968, which followed the Civil Rights Act, aimed to eliminate many forms of housing discrimination, further evolving the legal landscape regarding fair housing protections. As such, the limitations placed on non-citizens remain in contrast to the comprehensive protections established for other groups under the Civil Rights Act.