<P> A two - child policy is a government - imposed limit of two children allowed per family or the payment of government subsidies only to the first two children . It has previously been used in Vietnam . In British Hong Kong in the 1970s , citizens were also highly encouraged to have two children as a limit ( although it was not mandated by law ) , and it was used as part of the region 's family planning strategies . Since 2015 , it has been implemented in China . </P>
<P> A two - child policy is a government - imposed limit of two children allowed per family or the payment of government subsidies only to the first two children . It has previously been used in Vietnam . In British Hong Kong in the 1970s , citizens were also highly encouraged to have two children as a limit ( although it was not mandated by law ) , and it was used as part of the region 's family planning strategies . Since 2015 , it has been implemented in China . </P>
when did china 's 2 child policy start
when did china 's 2 child policy start
2015
2015