More about the Chinese Exclusion Act
When the Chinese Exclusion Act was extended in 1892, all Chinese residents were required to register and obtain a certificate of residence. Over time the act became more restrictive and enforcement became tighter. More data was collected—names, dates, places, physical characteristics, photos, interrogations and witnesses were required. In 1904 the law was made indefinite. Finally, during World War II, President Franklin D. Roosevelt repealed the Acts.
Sources: Nicola, Chinese Exclusion, APGQ, Mar 2006 pp26-7; Yung, Chang, Lai, Chinese American Voices, p431; Lowell, Chinese Immigration NARA Paper 99, p1.