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Electrical Installations in Ontario Must Adhere to the Ontario Electrical Safety Code - It's the Law

The Ontario Electrical Safety Code (OESC) is the technical document that defines standards and legal requirements for electrical installations in the province of Ontario. Published by the Electrical Safety Authority (ESA) - Ontario's electrical safety regulator and administrative authority - the OESC is developed through consultations of expert members at the provincial and national level.

Updated every three years, this latest edition is now in effect, and as of May 5th, 2016 is being enforced by the province.

2015 Ontario Electrical Safety Code (OESC)
26th Edition

Prescriptive in approach, the Ontario Electrical Code is an essential tool of the trade and describes the standards for safe electrical installations in detail. Now includes access to ESA Bulletins.

$219 (Hardcopy)
$195 (PDF)

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2015 Ontario Electrical Safety Code (OESC)
E-Pub Edition

A new interactive format for PCs, tablets & mobile devices that goes beyond traditional PDF. Code rules link directly to relevant OESC bulletin updates for ease of use, enhanced bookmarking, highlighting and search.

(E-Pub Edition)

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Highlights and Key Changes

  • Contains more than 200 updates and revisions, including major changes to sections on renewable energy, hazardous locations and electric heating
  • Details expanded requirements for the use of Arc Fault Circuit Interrupters (AFCIs) in homes
  • Includes changes to hazardous area classifications and zone requirements that will affect your installations and potentially save you money
  • Provides guidance on what defines clearances between lighting fixtures and nearby combustible material
  • Outlines revised requirements for non-commercial docks, LED in residential occupancies, and supply connectors for recreational vehicles

Register for Bulletins

As an Ontario electrical professional it is your responsibility to stay up-to-date on any revisions or rule interpretations made to the Ontario Electrical Safety Code after you purchase your copy. Bulletins are included with your purchase and will be published electronically on CSA Communities after they are released by ESA.

Registering & Logging in to the E-Pub


How to Use the E-Pub App


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