US lawIllinoisRegulationsTitle 77 — PUBLIC HEALTHCHAPTER I: DEPARTMENT OF PUBLIC HEALTHSUBCHAPTER r: WATER AND SEWAGEPart 890 — ILLINOIS PLUMBING CODE890.APPENDIX H77 Ill. Adm. Code 890.APPENDIX HH Illustrations for Subpart HLast amended: 2014Year: 2026Length: 16 wordsOfficial source Section 890.APPENDIX H  Illustrations for Subpart H Section 890.ILLUSTRATION F  Air Gaps (Referenced in Section 890.1040)Previous77 Ill. Adm. Code 890.APPENDIX HNext77 Ill. Adm. Code 890.APPENDIX I