The Firearm Owners Protection Act, also known as the McClure-Volkmer Act, was passed in 1986. It changed some restrictions in the 1968 Act, allowing federally licensed gun dealers and individual unlicensed private sellers to sell at gun shows, while continuing to require licensed gun dealers to require background checks. The 1986 Act also restricted the Bureau of Alcohol, Tobacco, and Firearms from conducting punitively repetitive inspections, reduced the amount of record-keeping required of gun dealers, raised the burden of proof for convicting gun law violators, and changed restrictions on convicted felons from owning firearms. In addition it also banned new machine guns for sale to the public, but grandfathered in any that were already registered.