In 1920, due to Prohibition, breweries across the United States were closed down or began making malt for other purposes. The Homebrewing of beer with an alcohol content higher than 0.5% remained illegal until 1978 when Congress passed a bill repealing Federal restrictions and excise taxes, and President Jimmy Carter signed the bill, H.R. 1337, into law. Within months of homebrewing's full legalization, Charlie Papazian founded the Brewers Association and American Homebrewers Association. In 1984, Papazian published The Complete Joy of Home Brewing which remains in print alongside later publications such as Graham Wheeler's Home Brewing: The CAMRA Guide.