In August 1919, the governor general of Lower California ordered Mexicali officials to require that all foreigners obtain the authorization of the territorial administration before entering the city and a head tax was levied on all new arrivals. This created all sorts of obstacles for Chinese wishing to come to Mexicali.
一九一八年八月，當時的下加利福尼亞省總督根都將軍電令墨市市政府，規定以後外人入境必經省級單位核准，並且須繳納人頭稅，從此華人入境就多了許多障礙。