After Congress passed the National Minimum Drinking Age Act in July 1984, states not in compliance had a portion of their federal highway funding withheld. Homebrewing beer became legal in all 50 states in 2013 as the governor of Mississippi signed a bill legalizing homebrewing on March 19, 2013 and as the governor of Alabama signed a bill legalizing homebrewing of beer and wine which took effect at that moment on the evening of May 9, 2013. Because alcohol is taxed by the federal government via excise taxes, homebrewers are restricted from selling any beer they brew.