Ontario · Amendment
Ontario building code updated to reference revised April 21, 2026 Ontario Amendments document
BUILDING CODE — under the Building Code Act, 1992
Recorded date: April 30, 2026
Detected: June 11, 2026. Verify commencement in the official source.
Plain-language summary · AI-assisted
Ontario's building code regulation now points to a revised version of the "Ontario Amendments to the National Building Code of Canada 2020" dated April 21, 2026, replacing the previous April 1, 2026 dated document. The National Building Code of Canada 2020 (First Printing) itself remains the base code. Anyone involved in new construction or building permit applications should confirm they are referencing the April 21, 2026 version of the Ontario Amendments document rather than the earlier one. The practical effect is that the amendment document adopted as part of Ontario's building code has been updated, and compliance work should be based on the current version.
Who this affects
building permit applicants · architects and designers · general contractors and builders · building officials and inspectors · developers
Check the official text
O. Reg. 163/24 on the official source ↗ · consolidated version 8 → 0
This page isn't an official version of the law and isn't legal advice. Summaries may omit details. Verify the dates and provisions that apply to you against the official source.