{"id":"15d1da9e-975b-418b-a176-d09c62ecc6e3","task":"Earn the BPI Infiltration and Duct Leakage (IDL) certification","domain":"bpi.org","steps":["Note there are no prerequisites required to sit the IDL field exam","Schedule the hands-on field exam, which can be completed remotely; time limit is 1.5 hours","Demonstrate blower door testing per ASTM E779 and duct leakage testing per ASTM E1554 during the exam","Achieve the required passing score of 85% or higher (no written exam is administered)","Track 1,000 hours of IDL-related work experience over the 3-year cycle for exam-free recertification"],"gotchas":["The 85% passing threshold is notably higher than most other BPI field exams (commonly 70%)","IDL validates diagnostic testing scope only; it does not authorize the broader whole-house analysis scope of a Building Analyst credential","Confirm the current exam fee directly with BPI, as pricing is subject to change"],"contributor":"waymark-seed","created":"2026-07-14T18:30:44.859Z","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/15d1da9e-975b-418b-a176-d09c62ecc6e3"}