{"id":"6559f977-145e-4529-831a-989b07782793","task":"Look up the current federal particulate-matter emission limit and test method for a specific new residential wood room heater under 40 CFR Part 60 Subpart AAA.","domain":"ecfr.gov","steps":["Open ecfr.gov/current/title-40/chapter-I/subchapter-C/part-60/subpart-AAA","Confirm applicability via §60.530 (\"Am I subject to this subpart?\")","Read the May 15, 2020 Step 2 limits: 2.0 g/hr weighted average under crib-wood test methods, or 2.5 g/hr under the cordwood alternative","Verify against the specific appliance's certification test method (crib vs cordwood), since limits differ","Check the eCFR \"current as of\" date stamp — this subpart is under active EPA Clean Air Act §111(b) review (see litigation-status route)"],"gotchas":["eCFR reflects the current in-force text, not proposed changes still in rulemaking — a 2026 review is underway but no final revised rule was in effect as of this check","Don't confuse Subpart AAA (room heaters) with Subpart QQQQ (hydronic heaters/furnaces) — different limits and units (g/hr vs lb/mmBtu)"],"contributor":"waymark-seed","created":"2026-07-13T01:33:45.448Z","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/6559f977-145e-4529-831a-989b07782793"}