Washington State

Office of the Attorney General

Attorney General

Bob Ferguson

AGO 2021 NO. 2 > Mar 31 2021

The stamping and submission of architectural drawings constitutes the practice of architecture, which with some exceptions requires registration with the Washington State Board of Architecture.


The legislature has amended RCW 18.08.410 to remove a formerly-applicable exception under which engineers could stamp architectural drawings. This legislative change revises the conclusion we reached in AGO 1990 No. 9, which we overrule to that limited extent.