If you are a constructor in Ontario, your administrative burden regarding the new WSIB defibrillator requirements likely felt heavier on New Year’s Day. As of January 1, 2026, the new amendments to the Occupational Health and Safety Act (OHSA)—specifically O. Reg 157/25 introduced under the Working for Workers Seven Act—officially came into force.
For many of our clients, this legislation moved the Automated External Defibrillator (AED) from the “optional best practice” column to the “mandatory compliance” column. If you run a site with 20 or more workers and a project timeline extending beyond three months, you must now install and maintain a life-saving AED on-site.
Usually, new mandates mean new costs. But the January 6th announcement regarding the new WSIB defibrillator rebate has flipped the script.
What many constructors viewed as a $2,000+ compliance “tax” is now a fully subsidized upgrade to your site’s safety infrastructure. The Board has launched a retroactive rebate program that covers up to $2,500 of the cost. This isn’t just about avoiding a Ministry of Labour (MLITSD) fine; it is about leveraging government funds to protect your liability and your workforce. Here is the GHRC strategic guide on how to navigate the new rules and secure your WSIB defibrillator funding.
Who Qualifies for the WSIB Defibrillator Program?
The rebate program is generous, but the eligibility criteria are strict. The Board is effectively paying you to be compliant, but only if you align with the specific triggers of the legislation. To qualify for the $2,500 reimbursement, you must meet the following “20/3 Rule”:
- Constructor of Record: You must be the designated constructor for the project. Subcontractors generally cannot claim this rebate for a site where they are not the primary authority, although they may purchase one for their own mobile crews.
- The “20” Threshold: You expect to have 20 or more workers regularly employed at the project. This includes your direct employees and subcontractor staff present on the site.
- The “3” Threshold: The project is expected to last three months or longer.
Strategic Note for Short-Term Projects: If you run a series of shorter projects (e.g., 6-week renovation blasts), you technically do not trigger the mandatory requirement. However, buying a portable unit that moves with your site superintendent is still an eligible expense if you can demonstrate it covers a “project” that fits the broader safety definitions. When applying, ensure you document how your WSIB defibrillator purchase aligns with your company-wide safety plan.
Why the WSIB Defibrillator Initiative Matters
Why is the government funding this so aggressively? The data on cardiac arrests in industrial settings is grim, and the “Chain of Survival” on a construction site is uniquely fragile.
The “Vertical Delay” Problem
In a standard office cardiac arrest, EMS can usually reach the patient within 8-10 minutes. On a construction site, you have what safety experts call “vertical delay.” Is the patient on the 20th floor of a high-rise build? Is the patient in a trench? Every minute that passes without defibrillation reduces the worker’s survival chance by 7-10%. A funded WSIB defibrillator unit on-site bridges that gap, keeping survival rates as high as 75%.
Liability Shielding
Under the new Working for Workers Seven Act, the “failure to provide aid” liability has expanded. If a cardiac event occurs and you meet the 20/3 threshold but do not have a functioning AED, you are now exposed to regulatory fines and increased civil liability. By utilizing the WSIB defibrillator rebate, you transfer this risk off your balance sheet entirely.
Choosing the Right WSIB Defibrillator Hardware
Here is where many employers make a mistake. They see “Reimbursement” and buy the cheapest unit available at a pharmacy. Do not do this.
Since the rebate cap ($2,500) is higher than the cost of most standard units ($1,500 – $1,800), you have “budget room” to buy the correct grade of equipment. Construction sites are hostile environments for electronics.
The “Ruggedized” Spec:
Ensure your procurement team looks for a WSIB defibrillator unit with an IP55 Rating (Ingress Protection) or higher. It must be sealed against concrete dust and withstand direct water jets. If you buy a standard office unit (IP21), it may fail when you open it due to dust intrusion. The Board is paying for the best—buy the best.
How to Submit Your WSIB Defibrillator Application
The application window officially opened on January 1, 2026. Here is the workflow to ensure your controller gets the credit:
- Purchase & Verify: Buy the unit first. Ensure the invoice clearly shows the date of purchase. Note that the WSIB defibrillator program is retroactive for purchases made after July 1, 2025.
- The Portal: Log into your WSIB Online Services account (the same portal used for premium reporting). Navigate to “Health and Safety Excellence / Rebates.”
- The Upload: You will need to upload the Proof of Purchase and the “Reimbursement Request Form.” You must submit a separate form for each qualifying project.
- The Credit: Once approved, the credit is applied to your account within 60 days.
Tip: Double-check that your receipt lists the specific model number, as the Board may verify that the device is Health Canada approved before issuing the WSIB defibrillator credit.
Don’t Fall into the “Set and Forget” Trap
The most common violation inspectors find regarding emergency equipment isn’t that it’s missing—it’s that it doesn’t work. A WSIB defibrillator is not a “install once and ignore” device. It requires active management to remain compliant under O. Reg 157/25.
To avoid a citation (and ensure the device actually works when needed), your site health and safety officer must track three expiration dates:
- The Pads: The adhesive gel on AED pads dries out over time. They typically expire every 24 months.
- The Battery: While the unit does self-tests, the primary battery usually has a 4-year shelf life.
- The Prep Kit: Ensure your station includes the mandatory “readiness kit” (medical shears, a razor, and a towel). On a construction site, thick clothing and debris often prevent pads from adhering unless the chest can be quickly prepped.
The “Toolbox Talk” Rule:
Finally, buying the hardware is useless if your crew doesn’t know where it is. We recommend adding a “AED Location & Awareness” segment to your next Monday Morning Toolbox Talk. Walk the crew to the device, show them the signage, and remind them that under Ontario’s Chase McEachern Act (Civil Liability Protection), they are legally protected when attempting to use the device to save a life.
The government is offering you a fully subsidized safety upgrade. It lowers your premiums, lowers your liability, and most importantly, it might save the life of the person signing the timesheets.
For more information on the legislation, visit the Government of Ontario Newsroom.
