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

  • EFC Supporting Industry Amongst Tariff Uncertainty

    EFC Supporting Industry Amongst Tariff Uncertainty

    As a major representative of the electrical and automation industry, Electro Federation Canada remains committed to supporting its members and the industry overall in navigating the complexities of international trade policies. Read More…

  • CanREA Launches New and Improved Go Solar Guide 2025

    CanREA Launches New and Improved Go Solar Guide 2025

    March 21, 2025 The Canadian Renewable Energy Association (CanREA) launched the 2025 edition of its annual Go Solar Guide today, encouraging Canadians to go solar. The 2025 version is new and improved: Now a web portal, it is free and accessible to everyone, anytime. “CanREA is proud to produce an annual consumer guide containing everything… Read More…

  • STANDATA Interpretation: 2024 Canadian Electrical Code, Part 1 Section 6 – Number of Supply Services Permitted

    STANDATA Interpretation: 2024 Canadian Electrical Code, Part 1 Section 6 – Number of Supply Services Permitted

    March 21, 2025 Purpose To clarify requirements for installations regarding the number of supply services permitted to be located on one unit of a building consisting of row housing for residential occupancies. Discussion There has been inconsistent application of the 2024 Canadian Electrical Code (CE Code) Part 1, Rule 6-102 regarding type and location where… Read More…

  • PEI Pauses Solar Electric Rebate Program

    PEI Pauses Solar Electric Rebate Program

    March 21, 2025 Rebate pre-approval letters for the Solar Energy Rebate program are currently on hold as the PEI government conducts a program review to ensure it continues to provide the best possible benefits to the most Islanders. We appreciate your patience. We do expect the program to be operational in the coming weeks. Check… Read More…


Changing Scene

  • Mersen Fuse Selection Guide

    Mersen Fuse Selection Guide

    March 21, 2025 Unlock Instant Access to the Mersen Fuse Selection Guide Learn how to match voltage ratings, nail amperage calculations, master interrupting ratings, and conquer temperature derating, all without breaking a sweat. Go HERE to download Read More…

  • EFC’s Business Sections Welcomes New Field Service Vice Chair

    EFC’s Business Sections Welcomes New Field Service Vice Chair

    March 21, 2025 EFC is pleased to announce Matthew De Ciantis, M&D De Ciantis Enterprises Inc., as the new Vice Chair of the Field Service Business Section. Matthew is a long-standing professional in the electrical industry who fulfilled many roles within his generational family electrical contracting company. Matthew’s experience and breadth of operational knowledge has… Read More…

  • EFC Welcomes New Manufacturer Member: NOARK Electric

    EFC Welcomes New Manufacturer Member: NOARK Electric

    March 21, 2025 NOARK Electric is a global manufacturer of low, medium and high low voltage electrical components for industrial applications. They specialize in providing electrical circuit protection and motor control solutions for OEMs, contractors, and distributors. Dedicated to quality and value, their mission is to deliver top-tier products at exceptional price, backed by world-class… Read More…

  • Mac’s II Agencies Strengthens Lighting Division

    Mac’s II Agencies Strengthens Lighting Division

    March 19, 2025 Mac’s II Agencies Announces Jamie Capell as the New Sales Manager for Lighting Specification Mac’s II Agencies is pleased to announce the expansion of its lighting division with the addition of Jamie Capell as the Sales Manager for Lighting Specification. Jamie brings 25 years of experience in the lighting and electrical industry, most notably… Read More…