This bill aims to prevent the unlawful manufacturing of firearms by mandating that three-dimensional printers sold in Washington be equipped with specific blocking technologies. It introduces a new chapter to Title 19 RCW, defining key terms such as "blocking features," "firearm," and "three-dimensional printer." The bill stipulates that, starting July 1, 2027, manufacturers, wholesalers, or sellers of three-dimensional printers must ensure that their products have integrated software controls that can detect and reject print requests for firearms or illegal firearm parts. Manufacturers are required to submit an attestation to the attorney general confirming compliance with these standards.

Additionally, the bill outlines penalties for violations, including misdemeanors for individuals and class C felonies for corporations or partnerships that fail to comply with the blocking features requirement. It also establishes the attorney general's role in creating and maintaining a database of firearms blueprint files and illegal firearm parts, which must be updated regularly. The legislation emphasizes that violations are considered unfair or deceptive acts under the consumer protection act, reinforcing the public interest in regulating the manufacturing of firearms through advanced technology.