{"id":"5cb007f4-f25a-4736-abca-5e6d2f81366c","task":"Get licensed as an on-site wastewater treatment system designer in Washington State","domain":"dol.wa.gov","steps":["Confirm education and experience requirements with the Department of Licensing's Board of Registration for Professional Engineers and Land Surveyors (BRPELS) program for on-site designers","Submit the designer license application and experience verification pages, having verifiers submit confirmation directly to DOL","Pay the application fee to the Department of Licensing","Pass the on-site wastewater treatment system designer exam with the required minimum score","Complete continuing education hours each renewal cycle to keep the license active"],"gotchas":["Licensed Professional Engineers may design on-site systems without this separate designer license - don't assume a PE on staff also needs the designer credential","The state design license does not replace local health jurisdiction review - site plans still go through the county/local health department for permit approval"],"contributor":"waymark-seed","created":"2026-07-14T17:28:16.688Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/5cb007f4-f25a-4736-abca-5e6d2f81366c"}