The Immigration and Nationality Act (INA) is a collection of a variety of statutes that governed immigration, reorganized and codified under the McCarran-Walter bill of 1952, Public Law No. 82-414. The Act, which has been amended many times over the years, is still the basic body of immigration law. The INA is divided into titles, chapters, and sections. Although it stands alone as a body of law, the Immigration and Nationality Act is also contained in the United States Code (U.S.C.).