OLYMPIA, Wash. (AP) — The Washington state Legislature on Tuesday approved new limits on untraceable, undetectable firearms, including the 3D-printed guns at the center of a high-profile federal case.

The proposal would ban outright undetectable guns and would limit — but not ban — untraceable guns.

The Washington proposal follows a prominent 2018 federal case that saw a Texas company, Defense Distributed, blocked from posting free plans online that could be used to print plastic guns on home 3D printers. Law enforcement officials worried such guns could be smuggled into secure areas or printed by felons.

The 2018 order was limited, however, blocking the company from giving the plans away but not from selling them via mail or email, which representatives said the company has continued to do, with thousands of orders.

Washington attorney general Bob Ferguson led the group of 19 states whose legal challenge resulted in the block.