This bill creates a new chapter in Title 19 RCW establishing requirements for the manufacture, wholesale, or sale of three-dimensional printers in Washington. After July 1, 2027, sellers may not transfer a 3D printer in the state unless the printer is equipped with integrated blocking features that prevent printing firearms and illegal firearm parts and the manufacturer has submitted an attestation under penalty of perjury to the attorney general that all makes and models sold in the state meet or exceed standards set out in the act and any adopted rules. The act directs the attorney general to adopt rules in consultation with research institutions and agencies to establish standards for the blocking features and the attestation process and exempts printers manufactured for and sold exclusively to holders of a federal firearms manufacturing license under 18 U.S.C. § 923. The bill defines key terms for enforcement: "equipped with blocking features" means an integrated software controls process that deploys a firearms blueprint detection algorithm which identifies and rejects print requests for firearms or illegal firearm parts with a high degree of reliability and cannot be overridden by a user with significant technical skill; it defines firearms blueprint detection algorithms, illegal firearm parts by reference to RCW 9.41.010, software controls processes, and 3D printers (including additive and subtractive manufacturing). The attorney general must create and maintain a database of firearms and illegal firearm parts blueprint files by August 1, 2026, update it at least annually, may set update frequency and require algorithm updates if more effective technology emerges, and the algorithm must at minimum use a database of disallowed blueprint files commonly shared on public internet forums and detect modified versions. The act creates new criminal and civil consequences: a natural person who violates the sale/transferral prohibition in section 3 is guilty of a misdemeanor for a first offense and a class C felony for a second or subsequent offense; corporations, trusts, unincorporated associations, or partnerships that violate section 3 commit a class C felony punishable by up to five years and a fine of up to $15,000; knowingly filing a materially false attestation is perjury in the second degree under RCW 9A.72.030; violations are declared unfair or deceptive acts under the consumer protection act (chapter 19.86 RCW). The act includes a severability clause. Important details are missing from the provided text: the specific technical standards for "high degree of reliability," the content and verification procedures for the manufacturer attestation, the full text of the attorney general's rulemaking provisions, and the remainder of the act beyond the truncated sections.

If enacted, starting July 1, 2027 manufacturers, wholesalers, and sellers will generally be barred from transferring 3D printers in Washington unless the machines have built‑in, non‑overridable controls that reliably block printing of guns or illegal gun parts and the manufacturer files a sworn attestation with the attorney general that all models sold in the state meet those standards. Manufacturers face new compliance costs to design, certify, or buy compliant machines and legal risk if they fail to attest or file false information (perjury), while businesses selling noncompliant printers or repeating violations could face criminal charges and fines; federal firearms manufacturers with the proper license are exempt. The attorney general will gain new rulemaking and enforcement duties, including creating and yearly updating a database of banned firearms blueprint files by August 1, 2026, and setting technical standards and attestation procedures in consultation with research and government partners. Key implementation details—what exactly counts as a “high degree of reliability,” how resistance to skilled users will be judged, and the form and verification process for attestations—are left to AG rulemaking and are not specified in the provided text, creating some uncertainty for affected manufacturers and algorithm developers about precise technical and administrative requirements.