Code Amendment History

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 EditionDate FiledEffective Date
O. Reg. 925/75 (1975 Building Code)November 24, 1975December 31, 1975
O. Reg. 583/83 (1983 Building Code)September 15, 1983November 30, 1983
O. Reg. 419/86 (1986 Building Code)July 18, 1986October 20, 1986
O. Reg. 413/90 (1990 Building Code)July 30, 1990October 1, 1990
O. Reg. 403/97 (1997 Building Code)November 3, 1997April 6, 1998
O. Reg. 350/06 (2006 Building Code)June 28, 2006December 31, 2006
O. Reg. 332/12 (2012 Building Code)November 2, 2012January 1, 2014

The following Table lists the amendments to the 2012 Building Code made since the filing of O. Reg. 332/12.

Regulatory Amendments to the 2012 Building Code – Ontario Regulation 332/12
AmendmentDate FiledEffective DateNature of Amendment
O. Reg. 151/13May 9, 2013January 1, 2014Sprinklering of retirement homes
O. Reg. 360/13December 20, 2013January 1, 2014Fees
January 1, 2015
O. Reg. 361/13December 20, 2013January 1, 2014Housekeeping changes, fireplace emission limits Revise Supplementary Standard SA-1 EIFS
January 1, 2015
O. Reg. 368/13December 27, 2013January 1, 2015Accessibility
O. Reg. 191/14September 23, 2014January 1, 2015Midrise wood construction, accessibility, housekeeping changes Revise Supplementary Standards SA-1, SB-1, SB-2, SB-3, SB-12
O. Reg. 139/17May 17, 2017July 1, 2017Retirement homes, 2 unit houses Revise Supplementary Standard SA-1 Electric vehicle charging, pipe sizing, sewage systems Revise Supplementary Standard SA-1
January 1, 2018
O. Reg. 462/17December 7, 2017January 1, 2018Applicable law
O. Reg. 563/17December 19, 2017January 1, 2018Electric vehicle charging
O. Reg. 79/88March 6, 2018April 3, 2018Applicable law
O. Reg. 388/18July 20, 2018July 20, 2018Occupancy requirements – Lower Don Area
O. Reg. 87/19May 2, 2019July 1, 2019Cannabis extraction operation
O. Reg. 88/19May 2, 2019May 2, 2019Electric vehicle charging, leaching chambers Harmonization with 2015 mNBC and 2015 mNPC changes Stairs, ramps, handrails and guards
January 1, 2020
January 1, 2022
O. Reg. 209/20May 11, 2020May 11, 2020Delivery of building code services, construction restrictions
O. Reg. 511/20September 18, 2020September 18, 2020Applicable law – community benefits charges
O. Reg. 762/20December 16, 2020December 16, 2020Applicable law, housekeeping changes
O. Reg. 867/21December 20, 2021January 1, 2022Applicable law, tiny homes, remote inspections
O. Reg. 217/22March 16, 2022July 1, 2022Truss and lightweight construction information
O. Reg. 434/22April 26, 2022April 26, 2022Temporary health or residential facilities measures
O. Reg. 451/22April 29, 2022April 29, 2022Sheds Encapsulated mass timber construction, factory-built buildings, qualifications for intern inspectors Occupancy permit for super tall buildings
July 1, 2022
November 1, 2022
O. Reg. 30/23February 28, 2023February 28, 2023Demountable stages, fire dampers
O. Reg. 31/23February 28, 2023February 28, 2023Temporary health or residential facilities
O. Reg. 89/23May 12, 2023May 12, 2023Midrise wood, standpipe exemptions, applicable law

The following Table lists Minister’s Rulings that have been made to adopt amendments to codes, formulae, standards, guidelines or procedures referenced in the 2012 Building Code.

Minister’s Rulings to adopt amendments to codes, formulae, standards, guidelines or procedures referenced in the 2012 Building Code
Ruling NumberDate of RulingEffective DateNature of Amendment
MR-13-S-24September 1, 2013January 1, 2014Revise Table 1.3.1.2. of Division B Revise Supplementary Standards SA-1, SB-5 and SB-12
MR-16-S-25July 7, 2016July 7, 2016Revise Table 1.3.1.2. of Division B Revise Supplementary Standard SB-5
MR-16-S-26July 7, 2016July 7, 2016Revise Table 1.3.1.2. of Division B Revise Supplementary Standard SB-12
MR-16-S-27December 22, 2016January 1, 2017Revise Table 1.3.1.2. of Division B Revise Supplementary Standard SB-10
MR-17-S-28December 29, 2017January 1, 2018Revise Table 1.3.1.2. of Division B Revise Supplementary Standard SA-1