Which requirement is NOT necessary for an immigrant to become a U.S. citizen?

Becoming a U.S. citizen involves meeting several specific requirements, and having a high school diploma is not one of them. The process of naturalization requires an immigrant to demonstrate certain qualifications, including being of good moral character, having lawful permanent residency, and passing an English language test, as well as a civics test that covers U.S. history and government.

A high school diploma is not a mandatory requirement for citizenship, meaning that individuals without formal secondary education can still qualify for citizenship if they meet the other established criteria. This allows for a broader range of individuals to pursue naturalization, supporting the principle that citizenship should be accessible to all lawful permanent residents, irrespective of their educational background.