PART 7 — PLUMBINGUpdated for the 2024 Ontario Building Code
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7.2.6.2.Maintenance Holes and Catch Basins
(1) Cast-iron frames and covers for maintenance holes and catch basins shall conform to CSA B70.1, “Frames and
Covers for Maintenance Holes and Catchbasins.”
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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.