On June 13th, the Washington State Building Code Council unanimously approved a change in state law that allows installation of standard solar PV systems without an engineer’s stamp. While many jurisdictions were already taking this route, the new code brings all jurisdictions into alignment. It is estimated that engineering costs range from $500 to $2500 or more and can add up to 8 weeks for a solar installation. The rule was approved using the “Emergency Rulemaking” process which means it became effective on July 1, 2014.

This code change will still have to complete the normal rulemaking process which includes public hearings this fall, the Council voting to make it a permanent rule in November and then it has to sit through next year’s legislative session. The final language is here.