01/13/2026
New Ontario AED Requirements on Construction Sites (O. Reg. 157/25)
As of January 1, 2026, constructors on many Ontario construction projects will have new legal duties under O. Reg. 157/25 – Construction Projects, Occupational Health and Safety Act. The amendment to O. Reg. 213/91 adds section 27.1, which requires automated external defibrillators (AEDs) to be present on certain sites and maintained to specific standards.
In addition to the new AED requirement under O. Reg. 157/25, the Ministry has approved a separate regulation that creates an AED reimbursement program for eligible construction projects.
When is an AED required on a project?
Under new section 27.1(1) of O. Reg. 213/91 (as amended by O. Reg. 157/25), the constructor must ensure an AED is installed and maintained at a project if both of the following are true:
Twenty or more workers are regularly employed at the project;
and
The work is expected to last three months or more.
We supply Health Canada–licensed AEDs suitable for use on Ontario construction sites, including Zoll and Philips, and all the necessary storage and signage.
Need on site training? We offer that too!
https://firstaidtrainingandeducation.square.site/
