What was enacted by the Chinese socialist State in 1958 to block population movement, especially rural -to-urban migration inMao,s era

The Chinese socialist State enacted the Hukou system in 1958 to block population movement, especially rural-to-urban migration during Mao's era. The Hukou system is a household registration system that restricts the movement of people from rural areas to urban areas, as individuals are required to have a Hukou (household registration) in the place they reside. This system was used to control population movement and prevent overcrowding in urban areas.