Immigration law in the United States generally includes the rights and obligations of persons who are not U.S. citizens to temporarily visit or more permanently reside in the U.S.—and for federal and state governments to enforce immigration laws regarding visitors and residents.

Most immigration law consists of federal statutes and regulations—but many state laws impact both legal and illegal immigrants—including employment checks, E-Verify, law enforcement, driver's license requirements, public benefits restrictions, and more.

In the United States, immigration law is primarily governed by federal statutes and regulations, which set forth the policies for individuals who are not U.S. citizens to visit or reside in the country. This includes provisions for visas, green cards, asylum, deportation procedures, and citizenship applications. In Delaware, as in other states, while the federal government primarily handles immigration enforcement, state laws can also impact immigrants. For example, Delaware employers may be required to use the E-Verify system to confirm the eligibility of their employees to work in the U.S. Additionally, state laws determine the eligibility of immigrants for driver's licenses, professional licenses, and public benefits. Law enforcement in Delaware may also have policies regarding cooperation with federal immigration authorities. It's important to note that while states can enact laws that affect immigrants within their borders, they cannot create laws that conflict with federal immigration laws.