{"data":{"id":"us/40-cfr-table-hh-3-to-subpart-hh-of-part-98","jurisdiction":"us","citation":"40 CFR Table HH-3 to Subpart HH of Part 98","heading":"Table HH-3 to Subpart HH of Part 98—Landfill Gas Collection Efficiencies","body":"Table HH-3 to Subpart HH of Part 98—Landfill Gas Collection Efficiencies\nDescription Term ID Landfill gas collection efficiency\nA1: Area with no waste in-place Not applicable; do not use this area in the calculation.\nA2: Area without active gas collection, regardless of cover type CE2 0%.\nA3: Area with daily soil cover and active gas collection CE3 50%.\nA4: Area with an intermediate soil cover, or a final soil cover not meeting the criteria for A5 below, and active gas collection CE4 65%.\nA5: Area with a final soil cover of 3 feet or thicker of clay or final cover (as approved by the relevant agency) and/or geomembrane cover system and active gas collection CE5 85%.\nArea weighted average collection efficiency for landfills CEave1 = (A2*CE2 + A3*CE3 + A4*CE4 + A5*CE5)/(A2 + A3 + A4 + A5).","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 98—MANDATORY GREENHOUSE GAS REPORTING","Subpart HH—Municipal Solid Waste Landfills"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"0208723a0a66c25870c50c0f31a7231f72ceaa090b298d83e12c465b12e3120d","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-table-hh-2-to-subpart-hh-of-part-98","next":"us/40-cfr-table-hh-4-to-subpart-hh-of-part-98"},"notice":"GroundRules: Original legal text. Not legal advice."}