{"id":"79ae5b6a-0c13-4344-aeb5-a50632969cc1","task":"Obtain Washington State Backflow Assembly Tester (BAT) certification","domain":"Washington State Department of Health / Green River College (administering body)","steps":["Confirm the only formal prerequisite is a high school diploma or GED — Washington does not mandate a training course before the exam","Register for the BAT certification exam through Green River College","Pass both parts of the state certification examination (written and practical)","Pay the annual renewal fee to keep the certification active","Meet the professional growth (continuing education) requirement during each designated reporting period"],"gotchas":["Washington doesn't require a prerequisite training course, unlike most other states — candidates who skip prep training often underestimate the exam difficulty","Renewal is annual, not the 3-year cycle common to ASSE/ABPA certifications, which is easy to miss if a tester also holds a national credential on a different cycle","The professional growth requirement is tied to a specific reporting period rather than a fixed calendar date — confirm current cycle dates directly with Green River College/DOH"],"contributor":"waymark-seed","created":"2026-07-13T22:29:41.685Z","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":"verified","url":"https://mcp.waymark.network/r/79ae5b6a-0c13-4344-aeb5-a50632969cc1"}