Code Library

Ontario Building Code 2024 Volume 1

Divisions A, B and C of the 2024 Ontario Building Code (O. Reg. 163/24) — every section reproduced with the current code text.

Division A — Compliance, Objectives and Functional Statements

Part 1 — Compliance and General

1.1General 1.2Compliance 1.3Divisions A, B and C of this Code 1.4Terms and Abbreviations 1.5Referenced Documents and Organizations

Part 2 — Objectives

2.1Application 2.2Objectives

Part 3 — Functional Statements

3.1Application 3.2Functional Statements
Division B — Acceptable Solutions

Part 1 — General

1.1General 1.2Definitions 1.3Referenced Documents and Organizations

Part 2 — Reserved

2.1General 2.2Fire Protection and Occupant Safety 2.3Structural Loads and Procedures 2.4Heating, Ventilating and Air-Conditioning

Part 3 — Fire Protection, Occupant Safety and Accessibility

3.1General 3.2Building Fire Safety 3.3Safety Within Floor Areas (See Note A-3.3.) 3.4Exits 3.5Vertical Transportation 3.6Service Facilities 3.7Health Requirements 3.8Barrier-Free Design (See Note 3.8.) 3.9Portable Classrooms 3.10Self-Service Storage Buildings 3.11Public Pools 3.12Public Spas 3.13Rapid Transit Stations 3.14Tents and Air-Supported Structures 3.15Signs 3.16Shelf and Rack Storage Systems 3.17Demountable Stages and Demountable 3.18Additional Requirements for Existing

Part 4 — Structural Design

4.1Structural Loads and Procedures 4.2Foundations 4.3Design Requirements for Structural 4.4Design Requirements for Special Structures

Part 5 — Environmental Separation

5.1General 5.2Loads and Procedures 5.3Heat Transfer (See Note A-5.3.) 5.4Air Leakage 5.5Vapour Diffusion 5.6Precipitation 5.7Surface and Ground Water (See Note A-5.7.) 5.8Sound Transmission (See Note A-5.8.) 5.9Standards

Part 6 — Heating, Ventilating and Air-Conditioning

6.1General 6.2Design and Installation 6.3Ventilation Systems 6.4Heating Appliances 6.5Thermal Insulation Systems 6.6Refrigeration and Cooling Systems 6.7Piping Systems 6.8Equipment Access 6.9Fire Safety Systems

Part 7 — Plumbing

7.1General 7.2Materials and Equipment 7.3Piping 7.4Drainage Systems 7.5Venting Systems 7.6Potable Water Systems 7.7Non-Potable Water Systems

Part 8 — Sewage Systems

8.1General 8.2Design Standards 8.3Class 1 Sewage Systems 8.4Class 2 Sewage Systems 8.5Class 3 Sewage Systems 8.6Class 4 Sewage Systems 8.7Leaching Beds 8.8Class 5 Sewage Systems 8.9Operation and Maintenance

Part 9 — Housing and Small Buildings

9.1General 9.2Definitions 9.3Materials, Systems and Equipment 9.4Structural Requirements 9.5Design of Areas, Spaces and Doorways 9.6Glass 9.7Windows, Doors and Skylights 9.8Stairs, Ramps, Handrails and Guards 9.9Means of Egress 9.10Fire Protection 9.11Sound Transmission (See Note A-9.11.) 9.12Excavation 9.13Dampproofing, Waterproofing and 9.14Drainage 9.15Footings and Foundations 9.16Floors-on-Ground 9.17Columns 9.18Crawl Spaces 9.19Roof Spaces 9.20Masonry and Insulating Concrete Form 9.21Masonry and Concrete Chimneys 9.22Fireplaces 9.23Wood Frame Construction 9.24Sheet Steel Stud Wall Framing 9.25Heat Transfer, Air Leakage and 9.26Roofing 9.27Cladding 9.28Stucco 9.29Interior Wall and Ceiling Finishes 9.30Flooring 9.31Plumbing Facilities 9.32Ventilation 9.33Heating and Air-Conditioning 9.34Electrical Facilities 9.35Garages and Carports 9.37Cottages 9.38Log Construction 9.39Park Model Trailers 9.40Reinforced Concrete Slabs (See Note A-9.40.) 9.41Additional Requirements for

Part 10 — Change of Use

10.1General 10.2Classification of Existing Buildings 10.3Requirements 10.4Compliance Alternatives

Part 11 — Renovation

11.1General 11.2Classification of Existing Buildings 11.3Proposed Construction 11.4Performance Level Evaluation and 11.5Compliance Alternatives

Part 12 — Resource Conservation and Environmental Integrity

12.1General 12.2Energy Efficiency, Carbon Dioxide 12.3Energy Efficiency for Buildings of
Division C — Administrative Provisions

Part 1 — General

1.2Design and General Review 1.3Permits and Inspections 1.4Search Warrant 1.5Designated Persons and Powers 1.6Prescribed Person 1.7Enforcement of the Provisions of the Act 1.8Language 1.9Fees 1.10Sewage System Maintenance Inspection 1.11Tiny Houses 1.12Off-Site Construction of Buildings

Part 2 — Alternative Solutions

2.0Application 2.1Alternative Solutions 2.2Building Code Commission 2.3Building Materials Evaluation Commission 2.4Rulings and Interpretations

Part 3 — Administrative Provisions

3.1Qualifications for Chief Building Officials 3.2Qualifications for Designers 3.3Qualifications for Persons Engaged in the 3.4Qualifications for Registered Code Agencies 3.5Classes of Registration and Categories of 3.6Insurance 3.7Registered Code Agencies

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.