Ontario · Amendment
Ontario's building code amendments document updated to October 2026 version
BUILDING CODE — under the Building Code Act, 1992
Recorded date: October 2, 2026
Detected: October 3, 2026. Verify commencement in the official source.
Plain-language summary · AI-assisted
The Ontario Amendments to the National Building Code of Canada 2020 have been updated: the reference document date has changed from July 17, 2026 to October 1, 2026, and a new amending regulation has been added to the adoption chain. Together, these form the current Ontario building code. Anyone involved in building design, permitting, or construction should confirm they are working from the October 1, 2026 version of the Ontario Amendments document rather than the earlier July 2026 version. The underlying National Building Code of Canada 2020 (First Printing) base document remains unchanged.
Who this affects
building designers and architects · general contractors · building permit applicants · municipal building departments · construction project managers
Check the official text
O. Reg. 163/24 on the official source ↗ · consolidated version 10 → 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.