PART 11 — RENOVATIONUpdated for the 2024 Ontario Building Code
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11.3.5.1.Existing Septic Tanks
(1) Despite Subsections 11.3.1. to 11.3.3., where an existing septic tank is subject to material alteration, repair or
replacement, the construction of the septic tank shall comply with Part 8.
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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.