Concerning on-site wastewater treatment system inspections.

This bill requires local health boards to ensure inspectors of on-site wastewater systems are qualified, accepting state engineering certification as proof of competence. It allows non-certified inspectors to work under certified supervision for up to four years while conducting inspections or reviewing system designs. The law amends Washington state code (RCW 70A.105.110) to clarify these standards for system inspections and design reviews. This directly affects local health departments, certified inspectors, and non-certified staff working in wastewater system oversight.