Key Changes to Canadian Electrical Code from CSA

EIN CSA logo 400

February 10, 2022

For over 90 years, CSA C22.1:21, Canadian Electrical Code, Part I, has been updated to help address sector challenges and improvements. And 2021 was no exception. Over 320 volunteer experts contributed to the 2021 Code providing recommendations and best practices relating to safety, construction, efficiency, new technologies and the environment. This work has resulted in over 200 updates to the Code. Some of the most significant ones included:

Energy Storage Systems

According to National Resources Canada, 6.3% of Canadian energy comes from renewables with wind and solar photovoltaic energy the fastest growing sources of electricity. These industries rely on energy storage systems during times of low demand, and supply energy during times of high demand or low production. With updated guidance on energy storage installation and maintenance, the Code helps to support renewable power generation, infrastructure, and safety.

Climate Change Adaptation

Previous editions of the Canadian Electrical Code have had no requirements for climate change adaptation. In Canada alone, the World Resources Institute has predicted flood damage costs of US$6.6-billion to urban areas by 2030. As a result of a climate change adaptation initiative between CSA Group and the National Research Council of Canada, the Code now contains new requirements for electrical installations subject to damage from flooding.

Buildings Housing Livestock

Barn fires can be tragic events for farmers, and the loss of livestock, buildings and equipment can be devastating in many ways. Based on data from the Office of the Fire Marshal and Emergency Management, there are approximately 80 reported fires involving barns housing livestock with an estimated loss of CAN$18.5-million each year. Approximately 40% of all barn fires are caused by electricity as ignition source. Requirements in the 2021 Code for buildings housing livestock aim to help increase safety and reduce the risks of barn fires and loss of animals.

Improved Interpretations

Where an approved interpretation indicates that current text is ambiguous, a new work item is automatically initiated to clarify the wording.  Approved interpretations are printed in Appendix I of the Code, and posted to the CSA standards activities website

Adoption Across Different Jurisdictions

Regulatory representatives from all Provinces and Territories are engaged in the CE Code development committees.  Provincial and Territorial regulatory authorities regularly submit local amendments as proposals to revise the CE Code.  When accepted into the CE Code, such amendments promote regulatory harmonization across the country by removing local differences.

Adoption of the CE Code varies by local jurisdiction, but most adopt it within 18 months of publication.  To date, 7 Provinces and Territories have referenced the 2021 CE Code, Part I in their legislation.  For additional details, see the CSA Communities website (free registration required).

Complimentary* eLearning training to Ontario residents is available until March 31st, which includes courses for the CE Code Part I.  Part of the training is directly related to key changes introduced to the 2021 CE Code Part I.

CSA Group, in collaboration with the Ontario Ministry of Labour, Training and Skills Development (MLTSD), is providing this access to Ontario residents to reduce the burden of compliance and assist with economic recovery.  Access is available through the CSA Communities HERE

Related Articles


Latest Articles

  • ESA 2025 Annual Licence Holder Meeting

    ESA 2025 Annual Licence Holder Meeting

    December 8, 2025 This year marked ESA’s 20th Annual Licence Holder Meeting — a milestone celebrating two decades of collaboration, innovation and safety leadership made possible by Ontario’s licence holder community. The meeting was held on Wednesday, November 26, 2025 Agenda Highlights Watch a recording of the 2025 Licence Holder Meeting. Read More…

  • BC Hydro’s Updated Business Energy-Saving Incentives, Limited Time Bonus Offer

    BC Hydro’s Updated Business Energy-Saving Incentives, Limited Time Bonus Offer

    December 8, 2025 Get funding from BC Hydro for businesses upgrading eligible equipment with energy-efficient models. Funding rates vary depending on the equipment being upgraded, with past participants receiving an average of 30% for upfront costs. Incentives are available for: Bonus offer BC Hydro is currently offering a 30% bonus incentive on all business energy-saving incentives projects… Read More…

  • Mastering Advanced Bidding Strategies in Electrical Contracting

    Mastering Advanced Bidding Strategies in Electrical Contracting

    December 1, 2025 By Melvin Newman, Patabid CEO & Ian Paterson, Patabid Client Success Manager and journeyman electrician with 30+ years of experience In the competitive world of electrical contracting, knowing how to estimate electrical jobs effectively can make the difference between winning profitable projects and watching opportunities slip away. For electrical contractors, mastering advanced… Read More…

  • Why Choosing the Right USB Charger Matters

    Why Choosing the Right USB Charger Matters

    December 1, 2025 Not all USB Chargers are Created Equal As the number of devices used daily increases, so does the need for a charger that delivers safe speeds and maximum charging potential. A high-quality USB charger delivers efficient charging without risk of damage, but the sea of USB chargers and outlets available on online… Read More…


Changing Scene

  • BC’s Bill 20 – The Construction Prompt Payment Act Receives Royal Assent

    BC’s Bill 20 – The Construction Prompt Payment Act Receives Royal Assent

    December 8, 2025 As the BC Legislature wraps up the final week of the Fall session, BCCA is very pleased to see Bill 20 receive Royal Assent and officially become the Construction Prompt Payment Act, SBC 2025, c 24. This marks a significant milestone for BC’s construction sector. This achievement reflects decades of consistent, principled… Read More…

  • Federal Government Announces New Measures to Support Steel and Lumber

    Federal Government Announces New Measures to Support Steel and Lumber

    December 8, 2025 The world is changing rapidly. The United States, the world’s largest economy, is fundamentally reshaping all its trade relationships, causing major disruption and upheaval for Canadians. It is time to transform our economy from one that is reliant on a single trade partner to one that is stronger, more self-sufficient, and resilient… Read More…

  • Skills Ontario Celebrates the Expansion of Trades & Tech Truck Program

    Skills Ontario Celebrates the Expansion of Trades & Tech Truck Program

    December 1, 2025 Skills Ontario is expanding its fleet of Trades & Tech mobile unit thanks to support from the Ontario Government. The government announced this morning it’s investment in Skills Ontario to expand experiential opportunities for Ontario’s future workforce.    “Ontario’s future relies on a strong, skilled workforce,” said David Piccini, Minister of Labour, Immigration,… Read More…

  • BC’s Canadian Mutual Recognition Agreement aims to Facilitate Interprovincial Trade

    BC’s Canadian Mutual Recognition Agreement aims to Facilitate Interprovincial Trade

    December 1, 2025 A new agreement signed by all provinces, territories, and the federal government will break down interprovincial trade barriers, making it easier for B.C. businesses to sell products across Canada, and for people to buy Canadian-made goods.   “When threats to Canada’s economic security land at our doorstep, we’re at our best when we work together as… Read More…