Ministry of Minist è re des Municipal Affairs Affaires municipales and Housing et du Logement Building and Development D irection du bâtiment Branch et de l'aménagement 777 Bay Street, 16 th Floor 777, rue Bay, 16 e étage Toronto ON M7A 2J3 Toronto ON M7A 2J3 Telephone: 416 585 - 6666 Téléphone : 416 585 - 6666 www.ontario.ca/buildingcode www.ontario.ca/buildingcode July 1, 2022 NOTICE TO BUILDING CODE USERS Enclosed please find the Compendium Edition 1 of the 2012 Building Code (O. Reg 332/12) which came i nto effect January 1, 2014. The Building Code is a regulation made under the B uilding Code Ac t , 1992 This edition of the 2012 Building Code Compendium reflects recent changes to the Building Code amended by: • O. Reg. 217/22 to incorporate the following changes effective July 1, 2022: o new Article requiring truss and lightweight construction information be provided to fire chief or municipal clerk within 45 days of permit being issued. • O. Reg. 434/22 to incorporate the following changes effective April 26, 2022: o new Subsection to include measures related to the Building Code to transition provisions from the Temporary Health or Residential Facilities Emergency Order that exempt temporary shelters and health facilities created to respond to the COVID - 19 pandemic from h aving to obtain a building permit or a change of use permit and exempts these buildings from complying with the technical requirements of the Building Code. • O. Reg. 451/22 to incorporate the following changes: o new Article exempting storage sheds of up to 1 5 m 2 in area from Building Code requirements effective April 29, 2022; o new Subsection allowing encapsulated mass timber buildings to be constructed up to 12 storeys high effective July 1, 2022; o removing barriers to multi - residential premanufactured modular construction projects effective July 1, 2022; o supporting local building official internship programs effective July 1, 2022; o new Article addressing provisions to allow for the early and partial occupancy for super tall buildings (i.e., those that are 65 storeys or more) effective November 1, 2022. 1 The Compendium is not an official copy of the Act and Code. Official copies of the legislation can be accessed from www.e - laws.gov.on.ca Changes to the Compendium are identified by a unique symbol identifying the source of the change and the corresponding effective date. ServiceOntario Publications is the official publisher and vendor of the 2012 Building Code Compendium and the amendment pages. You may contact ServiceOntario Publications by phone at 416 - 326 - 5300, 1 - 800 - 668 - 9938 (toll - free), TTY 1 - 800 - 268 - 7095 or www.serviceontario.ca/ publications For further information, please visit the Building Code website at www.ontario.ca/buildingcode Ministry of Municipal Affair s an d Housing Bu il ding and De velopment Branch 2012 Building Code Compendium 2012 Building Code Compendium Volume 1 July 1, 2022 update (Containing O. Reg s 217/2 2 , 434 /22 and 451 /22 ) Volume 1 2 012 B uilding Code Compendium COMMENCEMENT Ontario Regulation 332/12 comes into force on the 1st da y of January, 2014. Amendi n g Ontario Re gula tion 151/13 comes int o fo rce on the 1st day of January, 2014. Amending Ontario Regulation 360/13 comes into force on the 1st day of January, 2014. Amending Ontario Regulation 360/13 comes into force on the 1st day of January, 2015. Amen d ing Ontari o Regu lati o n 361/13 comes i nto force on the 1st day of January, 2014. Amending Ontario Regulation 361/13 comes into force on the 1st day of January, 2015. Amending Ontario Regulation 368/13 comes into force on the 1 st day of January, 2015. Am e nding Onta ri o Re gula t ion 191/14 comes int o force on the 1st day of January, 2015. Amending Ontario Regulation 1 39/17 comes into force on the 1st day of J uly , 201 7 Amending Ontario Regulation 1 39 /1 7 comes into force on the 1s t day of January, 201 8 Ame n ding Ontar io Reg ulat i on 462/17 comes into force on the 1st day of January, 2018. Amending Ontario Regulation 563/17 comes into force on the 1st day of January, 2018. Amending Ontario Regulation 79/18 comes into force on the 3 rd day of April , 2018. Amen d ing Ontari o Regu lati o n 388/18 comes i nto force on the 20 t h day of J uly , 2018. Amending Ontario Regulation 88 / 19 comes into force on the 2nd day of May , 2019 Amending Ontario Regulation 88 /19 comes into force on the 1st day of January, 2020. Amending O ntario Reg ul atio n 88 / 19 comes into fo rce on the 1st day of January, 20 2 2. Amending Ontario Regulation 87 /19 comes into force on the 1st day of July, 2019. Amending Ontario Regulation 209 / 20 comes into force on the 1 1th day of May , 20 20 Amending Ontari o Regulatio n 511 / 2 0 c om es into force o n the 1 8 th d ay of September , 20 20 Amending Ontario Regulation 762 / 2 0 com es into force on the 16 th da y of December , 20 20 Amending Ontario Regulation 867/21 com es into force on the 1st day of January, 2022 Amending Ontario R eg ulation 217 /2 2 com es into force on the 1st day of J uly , 2022 Amending Ontario Regulation 434 / 22 com es into force on the 27 th day of April , 2022 Amending Ontario Regulation 451 / 22 com es into force on the 2 9 th day of April , 20 22 Amending Ontario Regu la tion 451 / 22 com es into force on the 1st day of July , 2022 Amending Ontario Regulation 451 / 22 com es into force on the 1st day of November 2022. Ruling of the Minister of Municipal Affairs and Ho using (Minister’ s Ruling) MR - 13 - S - 24 come s into force on t he 1s t day of January 2014. Ruling of the Minister of Municipal Affairs (Minister’s Ruling ) MR - 16 - S - 2 5 comes into force on the 7th day of July 2016. Ruling of the Minister of Municipal Aff airs (M inist er’s Ruling ) MR - 16 - S - 26 comes into f o r ce on the 7th d ay of July 2016. Ruling of the Minister of Municipal Affairs (Minister’s Ruling) MR - 16 - S - 2 7 com es into force on the 1st day of January 2 01 7 Ruling of the Minister of Municipal Affairs (Min ister’s Ruli ng) MR - 17 - S - 28 comes into force on t h e 1st day o f Jan uary 2 018. r 2 r 1 m 1 r 3.1 r 4 r 2.1 r 3 r 5 m 2 m 3 m 4 4 3 r 6 r 6 .1 m 5 4 3 r 7 r 8 r 9 r 10 r 11 r 11 2 r 11 1 r 12 r 1 3 r 1 4 r 1 5 r 1 6 r 1 7 r 1 8 r 1 9 r 1 9 .1 r 1 9 2 2 012 Buildi ng Code Compendium Volume 1 EDITORIAL Editorial correction issued for January 1 st , 2014. Editorial corr ectio n issued for January 1 st , 2014. Editorial correction issued for January 1 st , 2015. Editorial c orrect ion i ssued for J anuary 1 st , 2015. Editori a l correctio n issu ed f or July 7 th , 2016. Editorial correction issued for January 1st, 2017. Editorial cor recti on issued for July 1st, 2017. Editorial correction issued for January 1st, 2018. Editorial cor rectio n iss ued for Jan uary 1st, 2018. Editorial c orrection issued for J anuary 1st, 2020. Editorial correction issued for January 1st, 2022. Editorial co rrect ion issued for July 1st, 2019. Editorial correction issued for December 16 th , 202 0 Editorial correction issued for July 1, 2022 Editorial correction i ssued for November 1, 2022 e 1 e 2 e 2.1 e 3 e 4 e 5 e 6 e 6.1 e 7 e 8 e 8.1 e 9 e 10 e 1 1 e 1 2 Volume 1 2 012 B uilding Code Compendium COVER PH OTO C REDIT S 1 2 3 4 5 6 7 8 1. Stephen Hawking C e ntre at the Perimeter Inst itute of Theoretical Physics; Teeple Architects Inc.; Scott Norsworthy Photography 2. Lawr en Harris House; Drew Mandel Architects; Tom Arban Photograph y Inc. 3. Sisters of St. Joseph Mo therh ouse; Teep le Ar chitec ts Inc.; Shai Gil Pho t o g raph y 4. James Bartleman Arch ives and Library Materials Centre; Shoalts & Zaback Architects Ltd. / Barry J. Hob in & Associates Architects Inc.; Tom Arban Photography I nc. 5. Ottawa Convention Centre; bbb archite cts; Willi a m P. McEl ligott Photography 6. Renfrew C o u n ty C ourthouse; NORR Limite d Architects Engineers & Planners; Steven Evans Photography 7. Stephen Hawking Centre at t he Perimeter Institute of Theoretical Physics; Teep le Archite cts Inc.; Shai Gil Photography 8. James Bart l eman Arch ives a nd Library Materials C e n t re; Shoalts & Zaback Archi tects Ltd. / Barry J. Hobin & Associates Architects Inc.; Tom Arban Photography In c. © Copyright Queen's Printer for Ontario, 20 2 2 ISBN 978 - 1 - 4868 - 6230 - 6 PDF – Set (July 1, 2022 update) ISBN 978 - 1 - 4868 - 6231 - 3 PDF – Vol ume 1 (July 1, 2022 update) All rights reserved. Q uestions regar ding copyright, including repro duction an d distribution, may be directed to t he Dir ector, Bu ilding and D eve lopme nt Branch , of the Min ist ry of Munic ipal Affairs and Housing Tel: 416 - 585 - 6666 E - Mail: Codeinf o@ ontario.ca 2012 Building Code Compendium 1 Table of Contents Volume 1 Preface Highlights of Major Changes in 2012 Code Code Amendment History Building Code Act Building Code Division A Compliance, Objectives and Functional Statements Part 1 Compliance and General Part 2 Objectives Part 3 Function al Statements Division B Acceptable Solutions Part 1 General Part 2 Reserved Part 3 Fire Protection, Occupant Safety and Accessibility Part 4 Structural Design Part 5 Environmental Separation Part 6 Heating, Ventilating and Air - Conditioning Part 7 Plumbing Part 8 Sewage Systems Part 9 Housing and Small Buildings Part 10 Change of Use Part 11 Renovation Part 12 Resource Conservation Division C Administrative Provisions Part 1 General Part 2 Alternative Solutions, Disputes, Rulings and Interpretations Part 3 Qualifications Part 4 Transition, Revocation and Commencement Index Pending Amendments 2012 Building Code Compendium 2 Volume 2 Appendix A Explanatory Information Appendix B Imperial Conversion Supplementary Standards SA - 1 Attribution Tables SB - 1 Climatic and Seismic Data SB - 2 Fir e Performance Ratings SB - 3 Fire and Sound Resistance of Building Assemblies SB - 4 Measures for Fire Safety in High Buildings SB - 5 Reserved SB - 6 Percolation Time and Soil Descriptions SB - 7 Construction Requirements for Guards SB - 8 Design, Construction and In stallation of Anchorage Systems for Fixed Access Ladders SB - 9 Requirements for Soil Gas Control SB - 10 Energy Efficiency Supplement SB - 11 Construction of Farm Buildings SB - 12 Energy Efficiency of Housing SB - 13 Glass in Guards SC - 1 Code of Conduct for Registered Code Agencies Forms 2012 Building Code Compend ium Volume 1 i Preface Introduction T he Building Code is a regulation made under the Building Code Act, 1992. This edition of the Building Code Compendium contains the Supplementary Standards referenced by the Code and additional explanatory material and is prepared for purposes of convenience only. For the authoritative text of the Building Code regulation, see the official volumes. The 201 2 Building Code was enacted by Ontario Regulation 332/12, which c ame into force on January 1, 2014. The Building Code sets out tec hnical requirements for the construction (including renovation) and demolition of buildings, the change of use of existing buildings where the change would result in an increase in hazard and the maintenance and operation of on - site sewage systems. The te chnical requirements of the Building Code do not have application to existing buildings other than the maintenance and operation of on - site sewage systems and buildings which undergo a change of use where the change would result in an increase in hazard. T he Code is essentially a set of minimum provisions respecting the safety of buildings with reference to public health, fire protection, accessibility and structural sufficiency. It is not intended to be a textbook on building design, advice on whic h shoul d be sought from professional sources. Its primary purpose is the promotion of public safety through the application of appropriate uniform building standards. The 2012 Building Code update d the previous edition of the Building Code, which date d from 2006 . Many of the changes introduced into the 2012 Building Code increase d the level of harmonization between Ontario’s Code and those in other Canadian jurisdictions. As well, the 2012 Building Code is written in an objective - based format which is intended to promote innovation and flexibility in design and construction. The Building Code and the M odel National Construction Codes The Canadian Commission on Building and Fire Codes (CCBFC), supported by the National Research Council (NRC), released new edition s of the model National Building, Plumbing and Fire Codes (mNBC, mNPC and mNFC) in 2010. These Codes have no legal status unless adopted by a province, territory or municipality. Ontario’s 2012 Building Code applies throughout Ontario and is based in larg e measure on the 2010 mNBC and mNPC. The amendments to the Building Code filed in May 2019 introduce further changes that harmonize wit h the 2015 mNBC and mNPC. However, differences between the model National Codes and Ontario’s Building Code occur. Ont ario’s 2012 Building Code has Ontario - specific requirements in areas such as energy efficiency, water conservation, renovation of existing buildings, and barrier - free access. Ontario has also moved to consolidate construction requirements from other legis lation into the Building Code, including those related to on - site sewage systems, pools, spas, food premises, private sewers and private water supplies. Objective - Based Code Format The 2012 Building Code is Ontario’s second edition of the Building Code pub lished in an objective - based format. The objective - based format augments specific technical requirements by identifying the underlying objectives and sub - objectives of those requirements (see table below). Each technical requirement that is an acceptable solution in Division B is linked to one or more of the objectives, as well as functional statements, through the Attribution Tables in Supplementary Standard SA - 1. Some objectives were developed jointly by the NRC and Canadian provincial/territorial juri sdictions. 2012 Building Code Compendium ii Volume 1 OBJECTIVES AND SUB - OBJECTIVES OF THE BUILDING CODE Objective Sub - Objective Safety Fire Safety Structural Safety Safety in Use Resistance to Unwanted Entry Health Indoor Conditions Sanitation Noise Protection Vibration and Defl ection Limitation Hazardous Substances Containment Privacy* View to the Outdoors* Accessibility Barrier - F ree Path of Travel Barrier - F ree Facilities Fire, Structural Water and Sewage Protection of Buildings Fire Protection of the Building Struct ural Sufficiency of the Building Protection of Adjacent Buildings from Fire Protection of Adjacent Buildings from Structural Damage Water and Sewage Protection of Buildings and Facilities Resource Conservation* Water and Energy Conservation* Infra structure Capacity* Environmental Integrity* Air Quality Water and Soil Quality Conservation of Buildings* N/A *Ontario - specific objectives are highlighted in grey. The objective - based format is intended to assist Building Code users to understand th e “why” behind Code requirements, as well as the “what”. This new format is more flexible and more responsive to innovation, as it should provide Code users with more information to evaluate construction equivalents and acceptable alternatives to the requ irements of the Code. The objective - based framework establishes a framework for evaluating “alternative solutions” against the performance achieved by the “acceptable solutions” set out in the Code. Objectives Every technical requirement that is an accepta ble solution in Division B is linked to at least one objective, which explains the objective which the requirement is intended to achieve. 2012 Building Code Compend ium Volume 1 iii Functional Statements Functional Statements describe what the design and construction of the building must do to achi eve the objectives. At least one functional statement is linked to each technical requirement that is an acceptable solution in Division B. Structure of the Objective - Based Code The Building Code is divided into three Divisions, which are further subdivid ed into Parts. D i vis i on A Co m pl i ance, Ob j ect i ves and Functional Sta t ements Part 1 Compliance and General • Organization and application • Compliance • Interpretation • Defined t erms, s ymbols and a bbreviations • List of applicable law for the purposes of obtaining a permit under Sections 8 and 10 of the Act Part 2 Objectives Part 3 Functional Statements Division B Acceptable Solutions Part 1 General Part 1 contains the compliance and general requirements of the code, including organization, application, interpret ation, terms and abbreviations, and referenced documents and organization. Part 2 Reserved Part 2 is reserved to maintain the organization of the acceptable solutions in a manner similar to previous Codes and to accommodate potential future changes in thi s Code and the model National Building Code (mNBC). Part 3 Fire Protection, Occupant Safety and Accessibility Part 3 contains the requirements with respect to health and fire safety, which depend upon the use to which a building is put and its type of occ upancy. The first Section contains material relating to occupancy classification and the more occupancy and fire safety within floor areas, exit requirements, requirements for service spaces and health requirements. Section 3.8. contains requirements for those buildings required to be accessible to persons with physical or sensory disabilities. Section 3.11. includes requirements for the design of public pools. Part 4 Structural Design Part 4 is made up of four Sections. The first deals with the loads to be used in design calculations and the methods of design to be followed. Section 4.2. regulates foundation design and construction. Section 4.3. deals with design in wood, masonry, concrete, steel, aluminum and glass. Section 4.4. deals with the desi gn of air - supported structures, parking structures and guards over retaining walls. Section 4.3. and parts of Section 4.4. contain performance requirements referring to the design methods outlined in detail in the relevant Canadian Standards. 2012 Building Code Compendium iv Volume 1 Part 5 E n vi ronmental Separation Part 5 includes requirements for the design of building elements to control groundwater, condensation and the penetration of wind and rain. Part 6 Heating, Ventilating and Air - Conditioning Part 6 provides for the safe functioning of h eating, ventilating and air - conditioning equipment installed in a building. The requirements deal mainly with installation standards for design. Part 7 Plumbing Part 7 governs the design, construction and installation of plumbing systems within properties . It also addresses the required material to be certified or in compliance with a testing standard. Part 8 Sewage Systems Part 8 governs the design, construction, operation and maintenance of various class of sewage systems located within properties. It addresses sewage systems up to 10,000 litres capacity serving one lot. Systems larger than 10,00 0 litres/day and off - lot (communal) sewage systems are regulated under the Ontario Water Resources Act, with approvals issued by the Ministry of the Environme nt, Conservation and Parks M ECP also regulates waste approvals for the hauling of sewage and land application sites under Part V of the Environmental Protection Act. Part 9 Housing and Small Buildings Part 9 provides detailed requirements for the constr uction of houses and small bu ildings up to 600 m 2 per floor and 3 storeys in height, and applies to all occupancies except assembly, care or detention and high hazard industrial. Part 10 Change of Use Part 10 governs the requirements with respect to a cha nge in major occupancy withou t any proposed construction to the buildings. Part 11 Renovation Part 11 provides for flexibility in meeting life safety requirements when renovating existing buildings, with or without changes in major occupancies of the buil dings or parts of the buildin gs. This flexibility allows, subject to certain conditions, the use of alternate methods of compliance to requirements contained in Parts 3, 4, 6, 8, 9, or 12, for all existing buildings or any major occupancies. Part 12 Reso urce Conservation Part 12 reg ulates the mandatory and enabling energy efficiency requirements, and insulation in residential and non - residential buildings. 2012 Building Code Compend ium Volume 1 v Division C Administrative Provisions Part 1 General Part 1 contains several administrative provisi ons relating to matters such as professional design requirements, permits and inspections, and building permit fees. Part 2 Alternative Solutions, Disputes, Rulings and Interpretations Part 2 contains administrative provisions related to the Building Code Commission, the Building Mat erials Evaluation Commission, Minister’s Rulings, Minister’s Interpretations, and documentation of alternative solutions. Part 3 Qualifications Part 3 contains qualification requirements for chief building officials, inspector s, registered code agencies, designers and on - site sewage installers. Part 4 Transition, Revocation and Commencement Part 4 contains the transition rules from the outgoing 2006 Building Code to the 2012 Building Code. It also contains the revocation of t he outgoing 2006 Building Cod e and the commencement date of the 2012 Building Code. Appendix A Explanatory Information Appendix A contains additional non - regulatory explanatory information to assist Code users in understanding the intent of the requiremen ts contained in Divisions A, B and C . Appendix B Imperial Conversion Appendix B contains Imperial conversion factors for metric values used in the Code . It is not a regulatory section of the 20 12 Building Code Supplementary Standards Supplementary Stan dards with the SA prefix are referenced by Division A of the Building Code. Th ey include the Attribution Tables which relate objectives and functional statements of Division A to acceptable solutions of Division B. Supplementary Standards with the SB pref ix are referenced by Division B of the Building Code. Th ey include MMAH SB - 1, “Climatic and Seismic Data”, MMAH SB - 2, “ Fire Performance Ratings” and others Supplementary Standards with the SC prefix are referenced by Division C of the Building Code . Th e y include administrative pro visions (e.g., MMAH SC - 1, “ Code of Conduct for Registered Code Agencies ” ). 2012 Building Code Compendium vi Volume 1 A dd i t i o n al I n f o r m a t i on Me t r i c C onvers i on For the most part, the official units of measurement in the Code are based on the metric system. However, imperial equivalent values wh ich appear in brackets in Part 9 are included for convenience only. Furthermore, Part 7 has been converted to SI units where it is feasible, except for pipe sizes which are expressed in inches. These are nominal dimensions by which pipe is known in the tr ade and the exact dimension may vary with different pipe materials. Numbering System A decimal numbering system has been used to identify particular requirements . Th e first number indicates the Part of the Code , the second, th e Section in the Part, the th ird, the Subsection and the fourth, the Article in the Subsection. An Article may be further broken down into Sentences (indicated by numbers in brackets), and the Sentence further divided into Clauses and Subclauses . Th ese a re illustrated as follows: 3 Part 3.6. Section 3.6.2. Subsection 3.6.2.3. Article 3.6.2.3.(1) Sentence 3.6.2.3.(1)(f) Clause 3.6.2.3.(1)(f)(i) Subclause 3.6.2.3.(1)(f)(i)(A ) Sub - subclause 3.6.2.3.(1)1. Paragraph 3.6.2.3.(1)1.i. Su b - paragraph 2012 Building Code Compend ium Volume 1 vii Highlights of Major Changes in 2012 Code Re s ource C onservat i on This edition of the Building Code promotes resource conservation through building design and construction by: • Expanding the use of treated rainwater, greywater and non - potable water incl uding permitting storm sewage or greywater to be used as a water supply for flushi ng of water closets or urinals, subsurface irrigation and priming of traps. • Permitting treated rainwater to be used as a water supply for clothes washers, laundry trays, mop sinks, bedpan washers, flushing of water closets and urinals, hose bi b bs, subsurfa ce irrigation and priming of traps. • Requiring newly installed water closets in Group C occupancies to be 4.8 L per flush (LPF) or less. Where a 4.1/6.0 LPF dual flush water c loset is installed, it is deemed to meet this requirement. • Requiring newly install ed urinals to meet 1.9 litres per flush requirements in all occupancies. • Requiring high efficiency shower heads (7.6 litres per minute) in residential occupancies. • Permitting the installation of drainless composting toilets in all areas, including those wi th municipal services. • Requiring that large buildings for which building permits are applied, on or after January 1, 2017, meet either: • an energy efficiency level that is 13% higher than levels required in 2012 and up until December 31, 2016, or • conformanc e to Division 1 and Division 3 or 5 of MMAH Supplementary Standard SB - 10 “Energy Efficiency Requirements”. (These new provisions also address requirements for carbon dioxide equivalents and peak electric demand.) • Requiring that houses for which building pe rmits are applied, on or after January 1, 2017, meet either: • an energy efficiency level that is 15% higher than the level required in 2012 and up until December 31, 2016, or • conformance to Chapters 1 and 3 of MMAH Supplementary Standard SB - 12 “Energy Effic iency for Housing” that sets out alternate compliance paths for meeting a performance level that is equal to a rating of 80 or more when evaluated in accordance with NRCan, “ EnerGuide for New Houses”. • This edition of the Code also implements other incremen tal energy - conserving changes including requirements to provide programmable thermostats, and to equip all gas - fired furnaces installed in “Part 9" dwellings with electronica lly commutated motors. Fi r e Safe t y • New definitions for ‘fire stop’ and ‘fire bloc k’ are added. • Permit smoke detectors that sound a localized in - suite alarm to be installed in dwelling units of multi - unit residential buildings. • Require a smoke alarm in all sleeping rooms within dwelling units. • Require a hard - wired smoke alarms to have a 7 - day battery - back - up power supply to ensure continued protection during extended power outages. • Require exits signs to use the ISO standard symbol using the green “running man” with an arrow sign . Th is replaces the traditional exit sign requirements suc h as “EXIT” and “EXIT/SORTIE” in red lettering on a contrasting background. Environmental Separation/Building Envelope Changes include the following: • Earthquake loads need no t be considered in the design of building envelope components for buildings other than post - disaster buildings. • Require building components to be selected based on exposure and climactic conditions. • Require seismic effects to be considered in the design fo r environmental separations in post - disaster buildings. • Prescriptive requirements for shakes and shingles have been deleted. • Reference to the AAMA/WDMA/CSA 101/I.S.2/A440, “NAFS - North American Fenestration Standard/Specification for Windows, Doors, and S kylights” . Th is replaces the previous CAN/CSA - A440.0, “Windows” standard. • New pro visions related to the performance of fenestration have been added. 2012 Building Code Compendium viii Volume 1 Harmonization with the Electrical Code • Certain provisions addressing electrical installations are relocat ed and harmonized between the Ontario Electrical Safety Code and the Building Code • Electrical provisions such as the mounting of electrical meters, location of consumer electrical services and underground installation of consumer electrical services have been deleted from Subsection 9.34.4. of Division B. Radon Protection • The annual a verage concentration of radon 222 within buildings is reduced to 200 Bq/m 3 from 250 Bq/m 3 , in accordance with Health Canada Guidelines, in areas where radon is known to exis t. Part 3, Division B - Fire Protection and Occupant Safety • Relocation of certain provisions to the Building Code from the Fire Code , including those regulating fixed building elements such as ventilation systems, access to egress routes and fire separati ons. • Adding new requirements to limit the distance between adjacent unprotected op enings on the same face of a building having a limiting distance of less than 2 metres. Part 4, Division B - Structural Design Changes to Part 4 include: • Clarification of loa d combination requirements. • Experimental methods for design for the dynamic effect s of wind, including modification factors and corresponding system restrictions for Cold - Formed Steel Structures, • Inelastic deflections in steel roof deck and timber diaphrag ms, • Clarification of requirements for ductile connections • Adding requirements for consideration of slope stability. Part 6, Division B - Heating, Ventilating and Air - Conditioning Changes made to Part 6 include: • Addition of a new Subsection 6.2.13., “Ventil ation for Laboratories”, to address ventilation in laboratories and to reference NFPA 91, “Exhaust Systems for Air Conveying of Vapors, Gases, Mists and Noncombustible Particulate Solids”. • Limitations on the permitted exposure levels for carbon monoxide a nd nitrogen dioxide in repair garages. • Permission to provide battery operated car bon monoxide alarms in buildings not supplied with electrical power. 2012 Building Code Compend ium Volume 1 ix Part 7, Division B - Plumbing Changes made to Part 7 include: • Permission to connect overflows from rainwater storage tanks to a storm drainage system, using a backwater valve o r an air gap. • Requirement to mark non - potable water piping in accordance with the CAN/CSA - B128.1 standard. • Requirement for grease interceptors to conform to the CAN/CSA - B481. 1 or CAN/CSA - B481.2 standards. • Requirement for linings and coatings in hot water t anks to be certified to the NSF 61 standard. • Requirement for drinking water treatment systems to be certified to the CAN/CSA - B483.1 standard. • Harmonization of requirements fo r scupper drains and emergency overflows, where roofs are used for rainwater stora ge, with the model National Plumbing Code • Further harmonization of drainage and venting requirements with the model National Plumbing Code • Backflow preventer requirements a re reorganized and include a new Article 7.6.2.6. on premise isolation. • Revisions to Tables for determining hydraulic load in the sizing of water distribution piping. Part 8, Division B - Sewage Systems Changes made to Part 8 include: • Certification of adva nced treatment units to the CAN/BNQ - 3680 - 600 standard will be recognized, instead of a listing in MMAH Supplementary Standard SB - 5, effective January 1, 2014. • MMAH Supplementary Standard SB - 5 will no longer be referenced and all advanced treatment units wi ll require certification to the CAN/BNQ - 3680 - 600 standard, effective December 31, 2016. • Introduction of new types of dispersal beds (Type A and B) for final polishing of effluent from advanced treatment units. • Introduction of new Tables for loading rates based on soil morphology • Reference to Chapter 3 of the USDA, “Soil Survey Manual” to assist in classifying soils. Part 9, Division B - Housing and Small Buildings • New reference to five “Use Categories” for pressure - treated wood, in accordance with the CAN /CSA - O 80.1, “Specification of Treated Wood” standard. • Rationalization of spacing for framing to represent the actual spacing used in the field to accommodate panels manufactured in imperial dimensions. • Reorganization of Sections 9.5. “Design of Areas, Spa ces and Doorways”, 9.6. “Glass” and 9.7. “Windows, Doors and Skylights” to harmoni ze with the model National Building Code • Clarification of the provision for guards to not facilitate climbing. • Clarification of the requirements for the installation of cera mic tiles. • New prescriptive design tables for solid concrete, unreinforced concret e block and reinforced concrete block foundation wall heights from 2.5 m to 3 m with corresponding limitations on backfill heights. • Revised access hatch dimensions to an atti c or roof space where the space contains a fuel - fired appliance. • Revised steel lin tel metric sizes in Tables 9.20.5.2.A and 9.20.5.2.B to reflect sizes of North American steel angle products manufactured in imperial dimensions. • Openings in flat insulating concrete form walls are not permitted within 1.2 m of interior and exterior corner s of exterior loadbearing walls. • Requirement for intermediate fasteners spaced not more than 150 mm apart where roof sheathing is attached to framing members spaced more than 406 mm o.c. • Deletion of asbestos - cement shingle and sheet cladding, as these prod ucts are no longer manufactured. • Requirement for a water distribution system where a drinking water system is available. • Requirement that heating and cooling equipment for re sidential buildings be sized according to heating and cooling load calculations in accordance with CAN/CSA - F280 - M, “Determining the Required Capacity of Residential Space Heating and Cooling Appliances”. • Requirement that carbon monoxide detectors be mechan ically fixed on or near the ceiling or in accordance with the manufacturer’s recom mended mounting height. 2012 Building Code Compendium x Volume 1 • Deletion of requirement for substantial completion of site grading as a condition for the occupancy of certain residential buildings. Part 1, Division C - Design and General Review • Revisions to Section 1.2 to recognize that profes sional design requirements related to the design of buildings are regulated by the Professional Engineers Act and the Architects Act. • Clarification that certain foundations, sprinkler protected glazed wall assemblies, shelf and rack storage systems, tent f raming and sign structures are required to be designed by a suitably qualified and experienced person. • New Table 1.2.2.1.(4) "General Review" to clarify that the construction of certain buildings shall be reviewed by an architect, professional engineer or both. New S entences 1.2.2.1.(4) to (9) require general review by an Architect or a Professional Engineer of certain foundations, sprinkler protected glazed wall assemblies, shelf and rack storage systems, tent framing and sign structures. 2012 Building Code Compend ium Volume 1 xi Code Amendment H istory The first Ontario Building Code was issued in 1975. The 1975 and subsequent editions of the Building Code have been issued as follows: Building Code Edition Date Fil ed Effective Date O. Reg. 925/75 (1975 Building Code) November 24, 1975 December 31, 1975 O. Reg. 583/83 (1983 Building Code) September 15, 1983 November 30, 1983 O. Reg. 419/86 (1986 Building Code) July 18, 1986 October 20, 1986 O. Reg. 413/90 (1990 B uilding Code) July 30, 1990 October 1, 1990 O. Reg. 403/97 (1997 Building Code) N ovember 3, 1997 April 6, 1998 O. Reg. 350/06 (2006 Building Code) June 28, 2006 December 31, 2006 O. Reg. 332/12 (2012 Building Code) November 2, 2012 January 1, 2014 The following Table lists the amendments to the 2012 Building Code made since the fil ing of O. Reg. 332/12. Regulatory A mendments to the 2012 Building Code – Ontario Regulation 332/12 Amendment Date Filed Effective Date Nature of Amendment O. Reg. 151/13 M ay 9, 2013 January 1, 2014 Sprinklering of retirement homes O. Reg. 360 /13 Decemb er 20 , 2013 January 1, 2014 Fees January 1, 2015 O. Reg. 361 /13 December 20 , 2013 January 1, 2014 Housekeeping changes, fireplace emission limits Revise Supplementary St andard SA - 1 January 1, 201 5 EIFS O. Reg. 368 /13 December 27 , 2013 January 1, 2 01 5 Accessibility O. Reg. 191 /1 4 September 23, 2014 January 1, 201 5 Midrise w ood construction , accessibility, housekeeping changes Revise Supplementary Standards SA - 1, SB - 1, SB - 2, SB - 3, SB - 12 O. Reg. 139/17 May 17, 2017 J uly 1, 2017 Retirement homes, 2 u nit houses Revise Supplementary Standard SA - 1 January 1, 201 8 Electric vehicle charging, pipe sizing, sewage systems Revise Supplementary Standard SA - 1 O. Reg. 462 /1 7 Dec ember 7, 2017 January 1, 201 8 Applicable law O. Reg. 563 /1 7 December 19, 2017 Jan uary 1, 201 8 Electric vehicle charging 2012 Building Code Compendium xii to xvi Volume 1 Regulatory Amendments to the 2012 Building Code – Ontario Regulation 332/12 (Cont’d) Amendment Date Filed Effective Date Nature of Amendment O. Reg. 79 / 88 March 6 , 201 8 April 3 , 2018 Applicable law O. Reg. 388 / 1 8 July 20, 2 01 8 July 20, 2018 Occupancy requirements - Lower Don Area O. Reg. 87/19 May 2, 2019 July 1, 2019 Cannabis e xtraction operation O. Reg. 88/19 May 2, 2019 May 2, 2019 Electric vehicle charging, leaching chambers January 1, 2020 Harmonizatio n with 2015 mNBC and 2015 mNPC changes January 1, 2022 Stairs, ramps, handrails and guards O. Reg. 209 / 20 May 11 , 2020 May 11 , 2020 D elivery of building code services , c o nstruction restrictions O. Reg. 511/20 September 18, 2020 September 18 , 2020 Appl icable law - c ommunity benefits charges O. Reg. 762 / 20 December 16 , 2020 December 16 , 2020 Applicable l aw, h ousek e ep ing changes O. Reg. 867/21 December 20 , 2021 January 1, 2022 Applicable l aw, tiny homes , remote ins p ections O. Reg. 217/22 March 16, 2022 July 1, 2022 Truss and l ightweight c onstruction information O. R eg . 434/22 April 26, 2022 April 26, 2022 Temporary h ealth or r esidential f acilities measures O. Reg. 451/ 22 April 29 , 2 022 A pril 29, 2022 Sheds July 1, 2022 E ncapsulated mass ti mber construction, factory - built buildi n gs , qua l ificatio ns for intern inspectors N ovember 1 , 2022 Occupancy permit for s uper tall buildings The following Table lists Mi nister’s Ru lings that have been made to adopt amendment s to codes, formulae, standards, guideline s or procedures referenced in the 20 12 Building Code Minister’s Rulings to adopt amendments to codes, formu lae, standards, guidelines or procedures reference d in the 20 12 Building Code Ruling Number Date of Ruli ng Effective Date Nature of Amendment MR - 13 - S - 24 September 1, 2013 January 1, 2014 Revise Table 1.3.1.2. of Division B Revise Supplementary Standards SA - 1, SB - 5 and SB - 12 MR - 1 6 - S - 2 5 July 7 , 201 6 J uly 7, 2016 Re vise Table 1.3.1.2. of Division B Revise Sup plementary Standard SB - 5 MR - 1 6 - S - 2 6 July 7 , 201 6 J uly 7, 2016 Revise Table 1. 3.1.2. of Division B Revise Supplementary Standard SB - 12 MR - 1 6 - S - 2 7 Dece mber 22, 2016 January 1, 2017 Revise Table 1.3.1.2 . of Divi si on B Revise Supplementary Standard SB - 1 0 MR - 1 7 - S - 2 8 December 2 9 , 201 7 January 1, 201 8 R evise Table 1.3.1.2. of Division B Revise Supplementary Standard S A - 1