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 Oregon, as in all states, immigration law is primarily governed by federal statutes and regulations, as the authority to regulate immigration is a federal power. This includes laws pertaining to visas, green cards, asylum, deportation, and citizenship. However, state laws can also impact immigrants in various ways. For example, Oregon has implemented the Oregon Worker Protection Act, which limits local law enforcement's cooperation with federal immigration authorities, effectively making it a 'sanctuary state.' Oregon also allows undocumented immigrants to obtain driver's licenses and state IDs. Employment verification is another area where state law can intersect with immigration, with employers being required to verify the eligibility of their employees to work in the United States, often using the federal E-Verify system. Public benefits in Oregon are generally restricted to legal residents, but there are some state-funded programs that are available regardless of immigration status. It's important for immigrants in Oregon to understand both the federal and state laws that may affect their rights and obligations.