cover of 2021 code book

2021 Ontario Electrical Safety Code (28th Edition)

MISSISSAUGA, ON (November 12, 2021) – The Electrical Safety Authority (ESA) would like to advise that the Minister of Government and Consumer Services has approved the regulatory amendment to adopt the 2021 Ontario Electrical Safety Code (OESC), which comes into effect on May 5, 2022. 

The new Code will be available for order in December 2021. The hardcopy of the Code book will be available for $223, as well as a PDF-version available for $199. These prices will include free access to the bulletins on CSA Community of Interest website over the whole period of the Code cycle. Once purchased, the PDF-version can be accessed immediately, while the hardcopy versions will be available for delivery in late January 2022.

ESA is partnering with the CSA Group to offer the Code book and all ESA bulletins, which provide important updates and interpretations, together for one price in a searchable, digital format for $199 — accessible on smart phones, tablets and desktops and compatible with Windows and iOS. This version will be available in Summer 2022. 

For more information on the new OESC, please visit

About the Electrical Safety Authority

The Electrical Safety Authority's (ESA’s) role is to enhance public electrical safety in Ontario. As an administrative authority acting on behalf of the Government of Ontario, ESA is responsible for administering specific regulations related to the Ontario Electrical Safety Code, the licensing of Electrical Contractors and Master Electricians, electricity distribution system safety, and electrical product safety. ESA works extensively with stakeholders throughout the province on education, training and promotion to foster electrical safety across the province.

More information on the Electrical Safety Authority can be found at, through and on Facebook at

Media Enquiries

For further information:
Electrical Safety Authority
905-712-7819 or