Versions of Indiana Code 8-1-2-46.3. Connection to sewer system not required upon improvement to dwelling if no addition of bedroom and determination that septic tank soil absorption system not failing on LawServer 2023 Indiana Code 8-1-2-46.3. Connection to sewer system not required upon improvement to dwelling if no addition of bedroom and determination that septic tank soil absorption system not failing 2022 Indiana Code 8-1-2-46.3. Connection to sewer system not required upon improvement to dwelling if no addition of bedroom and determination that septic tank soil absorption system not failing 2021 Indiana Code 8-1-2-46.3. Connection to sewer system not required upon improvement to dwelling if no addition of bedroom and determination that septic tank soil absorption system not failing