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 Edition | Date Filed | 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 Building Code) | July 30, 1990 | October 1, 1990 |
| O. Reg. 403/97 (1997 Building Code) | November 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 filing of O. Reg. 332/12.
| Regulatory Amendments to the 2012 Building Code – Ontario Regulation 332/12 | |||
| Amendment | Date Filed | Effective Date | Nature of Amendment |
| O. Reg. 151/13 | May 9, 2013 | January 1, 2014 | Sprinklering of retirement homes |
| O. Reg. 360/13 | December 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 Standard SA-1 EIFS |
| January 1, 2015 | |||
| O. Reg. 368/13 | December 27, 2013 | January 1, 2015 | Accessibility |
| O. Reg. 191/14 | September 23, 2014 | January 1, 2015 | Midrise wood construction, accessibility, housekeeping changes Revise Supplementary Standards SA-1, SB-1, SB-2, SB-3, SB-12 |
| O. Reg. 139/17 | May 17, 2017 | July 1, 2017 | Retirement 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. 462/17 | December 7, 2017 | January 1, 2018 | Applicable law |
| O. Reg. 563/17 | December 19, 2017 | January 1, 2018 | Electric vehicle charging |
| O. Reg. 79/88 | March 6, 2018 | April 3, 2018 | Applicable law |
| O. Reg. 388/18 | July 20, 2018 | July 20, 2018 | Occupancy requirements – Lower Don Area |
| O. Reg. 87/19 | May 2, 2019 | July 1, 2019 | Cannabis extraction operation |
| O. Reg. 88/19 | May 2, 2019 | May 2, 2019 | Electric 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. 209/20 | May 11, 2020 | May 11, 2020 | Delivery of building code services, construction restrictions |
| O. Reg. 511/20 | September 18, 2020 | September 18, 2020 | Applicable law – community benefits charges |
| O. Reg. 762/20 | December 16, 2020 | December 16, 2020 | Applicable law, housekeeping changes |
| O. Reg. 867/21 | December 20, 2021 | January 1, 2022 | Applicable law, tiny homes, remote inspections |
| O. Reg. 217/22 | March 16, 2022 | July 1, 2022 | Truss and lightweight construction information |
| O. Reg. 434/22 | April 26, 2022 | April 26, 2022 | Temporary health or residential facilities measures |
| O. Reg. 451/22 | April 29, 2022 | April 29, 2022 | Sheds 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. 30/23 | February 28, 2023 | February 28, 2023 | Demountable stages, fire dampers |
| O. Reg. 31/23 | February 28, 2023 | February 28, 2023 | Temporary health or residential facilities |
| O. Reg. 89/23 | May 12, 2023 | May 12, 2023 | Midrise 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 Number | Date of Ruling | 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-16-S-25 | July 7, 2016 | July 7, 2016 | Revise Table 1.3.1.2. of Division B Revise Supplementary Standard SB-5 |
| MR-16-S-26 | July 7, 2016 | July 7, 2016 | Revise Table 1.3.1.2. of Division B Revise Supplementary Standard SB-12 |
| MR-16-S-27 | December 22, 2016 | January 1, 2017 | Revise Table 1.3.1.2. of Division B Revise Supplementary Standard SB-10 |
| MR-17-S-28 | December 29, 2017 | January 1, 2018 | Revise Table 1.3.1.2. of Division B Revise Supplementary Standard SA-1 |
