The Immigration Act of 1917 (also known as the Literacy Act and less often as the Asiatic Barred Zone Act) was a United States Act that aimed to restrict immigration by imposing literacy tests on immigrants, creating new categories of inadmissible persons, and barring immigration from the Asia-Pacific zone. The most sweeping immigration act the United States had passed until that time, it followed the Chinese Exclusion Act of 1882 in marking a turn toward nativism. The 1917 act governed immigration policy until it was amended by the Immigration Act of 1924; both acts were revised by the Immigration and Nationality Act of 1952.