{"data":{"id":"us/40-cfr-table-2-to-subpart-w-of-part-63","jurisdiction":"us","citation":"40 CFR Table 2 to Subpart W of Part 63","heading":"Table 2 to Subpart W of Part 63—Toxic Equivalency Factors","body":"Dioxin and Furan Congener Toxic equivalency factor\n1,2,3,7,8-pentachlorodibenzo-p-dioxin 1\n1,2,3,4,7,8-hexachlorodibenzo-p-dioxin 0.1\n1,2,3,7,8,9-hexachlorodibenzo-p-dioxin 0.1\n1,2,3,6,7,8-hexachlorodibenzo-p-dioxin 0.1\n1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin 0.01\noctachlorodibenzo-p-dioxin 0.0003\n2,3,7,8-tetrachlorodibenzofuran 0.1\n2,3,4,7,8-pentachlorodibenzofuran 0.3\n1,2,3,7,8-pentachlorodibenzofuran 0.03\n1,2,3,4,7,8-hexachlorodibenzofuran 0.1\n1,2,3,6,7,8-hexachlorodibenzofuran 0.1\n1,2,3,7,8,9-hexachlorodibenzofuran 0.1\n2,3,4,6,7,8-hexachlorodibenzofuran 0.1\n1,2,3,4,6,7,8-heptachlorodibenzofuran 0.01\n1,2,3,4,7,8,9-heptachlorodibenzofuran 0.01\nOctachlorodibenzofuran 0.0003","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES","Subpart W—National Emission Standards for Hazardous Air Pollutants for Epoxy Resins Production and Non-Nylon Polyamides Production"],"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":"38476d7ee8c19688381255d0c077fb09fe5644f10e64e43c8491224460f5e62b","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-table-1-to-subpart-w-of-part-63","next":"us/40-cfr-63.541"},"notice":"GroundRules: Original legal text. Not legal advice."}