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Defibrillators Required on Construction Sites Beginning January 1, 2026

New AED requirements are now in effect for certain Ontario construction projects. Here’s what employers need to know to make sure their sites are prepared and compliant.

An amendment to the Construction Projects Regulation under the Occupational Health and Safety Act requires construction sites to have an Automated External Defibrillator (AED) on site as of January 1, 2026, along with the necessary accessories to operate it.

An AED is a life-saving device used to treat sudden cardiac arrest. While training is recommended and beneficial, anyone can use an AED in an emergency.

This requirement applies to construction projects with 20 or more workers and does not apply to those expected to last less than three (3) months, as defined under the Act.

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