Ontario Electrical Safety Code
What is the Ontario Electrical Safety Code?
The Ontario Electrical Safety Code is a provincial regulation that sets safety standards for the installation and maintenance of electrical equipment. It is mainly a technical document aimed at enforcing safety standards. Revisions to the Ontario Electrical Safety Code are made through consultation at both the provincial and national level, and through the Electrical Safety Authority and its safety partners.
I have already purchased the Canadian Electrical Code. Do I need the Ontario Electrical Safety Code?
Yes. The law requires that all electrical installations in Ontario meet the requirements of the Ontario Electrical Safety Code. If you perform electrical work in Ontario, you should have a current copy of the 2021 Ontario Electrical Safety Code.
The 2021 edition of the OESC includes the Canadian Electrical Code, Part I plus several Ontario-specific amendments. This new edition includes changes designed to enhance electrical safety and protect workers and the public.
What is the difference between the Canadian Electrical Code and the Ontario Electrical Safety Code?
In addition to specific Ontario administrative requirements, there are also technical differences.
How can I tell the difference between the Ontario amendments of the new Code and the CEC rules?
The Ontario amendments are identified by a black trillium symbol (below) and the Ontario text is in italics. A list of the Ontario amendments is also provided in the Ontario Electrical Safety Code section of the ESA website.
How much does the Ontario Electrical Safety Code cost?
The new 2021 Code(28th Edition) is now available for purchase. The electronic and PDF-version are available for $199. Once purchased, the PDF-version can be accessed immediately. The hard copy of the Code book will be available in late January 2022 for $223. These prices include free access to the bulletins on CSA Community of Interest website over the whole period of the Code cycle.
ESA partners 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. The bulletin package will be available in May 2022.
To order a copy of the OESC, please visit csa.org/oesc or call 800-463-6727.
Is the Ontario Electrical Safety Code available in French?
Yes, Ontario-specific amendments based on the 2018 Ontario Electrical Safety Code are available in French on ESA’s website. The national version of the Canadian Electrical Code, Part 1, is available in French and English, and can be purchased through CSA Group.
2021 French amendments will be available soon.
What is the size of the print version of the Ontario Electrical Safety Code book?
The Ontario Electrical Safety Code book is 8 ½ x 11 inches, spiral-bound. The Pocket Reference guide is 4 x 6 ¼ inches.
How do I get a defective Ontario Electrical Safety Code book replaced (e.g. missing page)?
Call the CSA Group at 800-463-6727 and ask for a replacement. CSA Group will ship the replacement at no charge.