US lawIllinoisRegulationsTitle 77 — PUBLIC HEALTHCHAPTER I: DEPARTMENT OF PUBLIC HEALTHSUBCHAPTER r: WATER AND SEWAGEPart 905 — PRIVATE SEWAGE DISPOSAL CODE905.APPENDIX B77 Ill. Adm. Code 905.APPENDIX BB Contact Information for the Central and Regional OfficesLast amended: 2013Year: 2026Length: 11 wordsOfficial source Section 905.APPENDIX B Contact Information for the Central and Regional OfficesPrevious77 Ill. Adm. Code 905.APPENDIX A