In South Africa, pass laws were a form of internal passport system designed to segregate the population, manage urbanisation, and allocate migrant labour. Also known as the natives law, pass laws severely limited the movements of black African citizens by requiring them to carry pass books when outside their homelands or designated areas. Before the 1950s, this legislation largely applied to African men, and attempts to apply it to women in the 1910s and 1950s were met with significant protests. Pass laws would be one of the dominant features of the country's apartheid system, until it was effectively ended in 1986.