A key element of the Act was its provisions for enforcement. The Act provided funding and legal instructions to courts of deportation for non-white immigrants and Southern and Eastern European immigrants who exceeded their national quotas. Deportations of North African, Arabian, Persian, and East Indian immigrants were sometimes challenged in court with claims that these persons were "white." Initially these immigrants were deported, but by the post-World War II era, with xenophobia on the decline, all of these groups were classified as white under American Law.