Regulation - LGIC

Proposed Changes to Sewage Systems and Energy for the Next Edition of Ontario's Building Code

Regulation Number(s):
Instrument Type:
Regulation - LGIC
Bill or Act:
Building Code Act
Summary of Proposal:
Ontario's Building Code is a regulation under the Building Code Act, 1992 which sets out minimum administrative and technical requirements for new construction, renovation, and change of use of buildings.

The Ministry of Municipal Affairs and Housing has been actively working on the development of the next edition of the Building Code since 2021.

The third and final phase of consultation focuses mainly on remaining Ontario-specific proposals and issues identified through the first two phases of consultation.

Due to their potential relevance to the environment, a proposal related to energy and proposed Part 8 changes on sewage systems are being posted separately from other Phase 3 proposals (see attached List of Proposed Changes to Sewage Systems and Energy).

The Phase 3 consultation consists of engagement and discussion in November/December 2022, and three simultaneous online postings. In addition to this current posting on proposed sewage system and energy changes, the other two postings are on the Regulatory Registry of Ontario on:

General Proposed Changes for the Next Edition of Ontario's Building Code [link]
Building Code Changes to Support the Housing Supply Action Plan [link]
The ministry will continue to carefully review and analyze the feedback collected from all three phases of consultation. This information will inform the drafting of the next edition of Ontario's Building Code.

Please submit comments on any of the proposed changes by:

using the link provided within the attached list of proposals, or
submitting an email directly to with the Sentence(s) or Article number(s) as the subject line.
This posting is open for 45 days for feedback. A bulk comment form is also available and is attached below.
Analysis of Regulatory Impact:
Costs: There are no new administrative costs anticipated for regulated entities.

Benefits: The proposed changes would update requirements and increase harmonization between Ontario's Building Code and National Construction Codes.
Further Information:
Proposal Number:
Posting Date:
October 25, 2022
Comments Due Date:
December 9, 2022