{"data":{"id":"us/40-cfr-table-2-to-subpart-lll-of-part-63","jurisdiction":"us","citation":"40 CFR Table 2 to Subpart LLL of Part 63","heading":"Table 2 to Subpart LLL of Part 63—1989 Toxic Equivalency Factors (TEFs)","body":"Dioxins/Furans TEFs 1989\n2,3,7,8-TCDD 1\n1,2,3,7,8-PeCDD 0.5\n1,2,3,4,7,8-HxCDD 0.1\n1,2,3,6,7,8-HxCDD 0.1\n1,2,3,7,8,9-HxCDD 0.1\n1,2,3,4,6,7,8-HpCDD 0.01\nOCDD 0.001\n2,3,7,8-TCDF 0.1\n1,2,3,7,8-PeCDF 0.05\n2,3,4,7,8-PeCDF 0.5\n1,2,3,4,7,8-HxCDF 0.1\n1,2,3,6,7,8-HxCDF 0.1\n1,2,3,7,8,9-HxCDF 0.1\n2,3,4,6,7,8-HxCDF 0.1\n1,2,3,4,6,7,8-HpCDF 0.01\n1,2,3,4,7,8,9-HpCDF 0.01\nOCDF 0.001","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 LLL—National Emission Standards for Hazardous Air Pollutants From the Portland Cement Manufacturing Industry"],"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":"6ec4d94217acf44f0a0ca5cca7c3369942d4254439e6b59d3e7fe40df29ec782","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-table-1-to-subpart-lll-of-part-63","next":"us/40-cfr-63.1360"},"notice":"GroundRules: Original legal text. Not legal advice."}