The appeals court decision loosens regulations on sharing untraceable 3D-printed gun files, but the Biden administration is expected to propose new restrictions on so-called ghost guns by May 8. Cody Wilson, with Defense Distributed, holds a 3D-printed gun called the Liberator at his shop in Austin, Texas. (AP Photo/Eric Gay, file) SAN FRANCISCO (CN) — A divided Ninth Circuit panel on Tuesday lifted a court order against two Trump-era rules that make it easier to share untraceable 3D-printed gun blueprints, just as the Biden administration seeks to tighten restrictions on so-called ghost guns. The appeals court ruling will lift restrictions on exporting specs for 3D-printed guns, but President Joe Biden announced in early April that the Justice Department would issue new rules for ghost guns within 30 days.