The Biden administration has finalized a significant rule aimed at closing the 'gun show loophole', marking the largest expansion of gun-sales background checks since the federal check system was introduced in the 1990s. This new regulation requires gun dealers to obtain federal licenses and conduct background checks on buyers, regardless of where the guns are sold, including at gun shows and online. The move is designed to prevent tens of thousands of firearms from being sold each year by unlicensed dealers without background checks. The Justice Department has submitted the final rule to the federal register, emphasizing the administration's effort to curb gun violence and regulate gun sales more effectively. This action builds on the Bipartisan Safer Communities Act and is part of a broader effort to ensure safer communities by expanding background checks and closing loopholes for online sales and gun shows since the 1990s.