The three-tier system in the United States was one of the results of the repeal of Prohibition.
Answer: True.
In 1933, the 21st Amendment to the United States Constitution, which repealed Prohibition, granted states the authority to regulate alcoholic beverages through licensing. The new regulatory system became known as the three-tier system. The system—convoluted and confusing—separates producers, distributors, and retailers. The result is a complex patchwork of rules that individual states enact and enforce. In ceding control to the states, the federal government sidestepped the controversial and volatile issue of how alcoholic beverages should/could be sold. The result has been an enormous spectrum of varying approaches, from states with relatively liberal policies to states with constrictive retail monopolies.