US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDSUBCHAPTER l: AIR QUALITY STANDARDS AND EPISODESPart 243 — AIR QUALITY STANDARDS243.APPENDIX B35 Ill. Adm. Code 243.APPENDIX BB Section into Rule Table (Repealed)Last amended: 2013Year: 2026Length: 10 wordsOfficial source Section 243 Section 243.APPENDIX B Section into Rule Table (Repealed)Previous35 Ill. Adm. Code 243.APPENDIX ANext35 Ill. Adm. Code 243.APPENDIX C