This bill introduces a new section to chapter 19.27 of the Revised Code of Washington, focusing on the regulation of 3D-printed building construction. It mandates that within the adoption cycle for the 2024 Washington state residential code, the state building code council must amend the code to include the 2024 international residential code appendix BM, which pertains to 3D-printed construction methods.

Furthermore, the bill requires that by the adoption cycle for the 2027 Washington state residential code, the state building code council must further amend the code to incorporate 3D-printed building construction into the main body of the residential code, moving it from an appendix to a more central regulatory position. This progression aims to formalize and standardize the use of 3D printing technology in residential construction within Washington state.