The ATF defends the rule as necessary to combat the threat of ghost guns, which are being used in a growing number of crimes across the nation.

It’s now in the hands of the US Supreme Court whether President Joe Biden’s administration can continue to regulate so-called ghost guns — firearms that can be built at home or with the use of a 3D printer.

The number of untraceable homemade guns recovered at crime scenes has fallen since the enactment of rules restricting the sale of the weapons, according to law enforcement statistics.

The docket doesn’t have quite as many blockbuster cases as it did last term, when its rulings included an opinion granting broad immunity to Donald Trump.

The Supreme Court is tackling politically charged issues while they wait to see if they will be asked to decide any election disputes.

The rule from the Bureau of Alcohol, Tobacco, Firearms and Explosives seeks to ensure ghost guns are subject to the same requirements as commercial firearms sales.

The Biden administration will defend its regulation of so-called “ghost guns” before the Supreme Court during oral arguments Tuesday, months after the same conservative-controlled court threw out another federal gun control rule.

The top US court is back in session with cases that may affect American life - and its standing in the public.

The Supreme Court has begun its new term and has agreed to take up cases on gender-affirming care, "ghost guns" and the death penalty, among others. NBC News' Lawrence Hurley has details on what cases the court is scheduled to hear and their decision to decline to hear a Biden administration appeal over emergency room abortion care.