Versions of Indiana Code 16-18-2-263.6. \"Onsite sewage system\" on LawServer 2023 Indiana Code 16-18-2-263.6. “Onsite sewage system” 2022 Indiana Code 16-18-2-263.6. “Onsite sewage system” 2021 Indiana Code 16-18-2-263.6. “Onsite sewage system” 2020 Indiana Code 16-18-2-263.6. “Onsite sewage system” 2019 Indiana Code 16-18-2-263.6. “Onsite sewage system” 2018 Indiana Code 16-18-2-263.6. “Onsite sewage system”