Working at Heights in Ontario: Test Day + Study Checklist

Published On

2025-8-20

An electrician working on a power pole

All workers on construction projects who use fall protection must complete a training program approved by the Ministry of Labour. As an approved training provider, Skilled Trades College of Canada includes Working at Heights certification as part of every pre-apprenticeship program. 

Wondering if you need to get Working at Heights training? Ontario regulations require this certification from anyone working at heights of three metres or more. 

As a high-risk industry, construction accounts for a huge portion of fall-related injuries. Since the province implemented a standardized mandatory Working at Heights training program for construction workers, fall-related compensation claims have dropped by 19%. That’s clear proof that proper training makes a difference! 

However, to be effective, students must demonstrate real competency. In this article, we’ll discuss what to expect in a Working at Heights training program and how the evaluation works. We’ll even throw in a study checklist to ensure you’re fully prepared to take on the challenge! 

What Is Working at Heights Training?

Working at Heights training (WAH) is a program designed to teach trades students how to work safely at elevated heights. It must:

  • Meet the standards set by the Chief Prevention Officer (CPO)
  • Be provided by a CPO-approved training provider, like Skilled Trades College of Canada

Who Needs Working at Heights Training in Ontario?

You need Working at Heights training in Ontario if you work or plan to work on construction projects and are required to use fall protection devices and systems. That includes anyone who uses: 

  • travel restraint system
  • fall restricting system
  • fall arrest system
  • safety net
  • work belt
  • safety belt

Keep in mind: This is in addition to the equipment-specific instruction. For example, if you’ll be working on scaffolds, aerial lifts, or a specialized fall arrest system, you’ll still need separate training on that equipment. 

Learn more: The Importance of Construction Site Safety

Construction worker climbing a ladder on site

Image Source: Shutterstock

Working at Heights Training Content

Approved Working at Heights Training programs follow the standard set by Ontario’s CPO. They’re divided into two main parts: a theory module and a practical module. Together, they give you the knowledge and hands-on skills you need to work safely at heights.

Basic Theory Module
Practical Module

Covers the following:

  • Your roles, rights and responsibilities under the Occupational Health and Safety Act
  • How to spot common fall hazards
  • The “hierarchy of controls” and how to use it to reduce risks
  • Safety training for:
    • warning methods,
    • physical barriers,
    • safety nets
    • ladders and other fall protection equipment

Covers the following:

  • How to properly use different fall protection and fall prevention systems
  • How to inspect and wear personal fall protection equipment
  • How to choose safe and reliable anchor points
  • Using work positioning systems, ladders, work access, and platforms correctly
  • Identifying and practicing a rescue plan in case of an emergency

At Skilled Trades College of Canada, these modules are built into every pre-apprenticeship program. Each CPO-approved program also includes industry-specific instruction. For example, electrical pre-apprentices also learn how to use fall protection when installing conduit, running wires, or working on poles.

Working at Heights Training Evaluation

To get a Working at Heights certification, students must first complete both the theory and practical modules, then pass the required evaluations. Like the modules, the evaluation has two parts:

  • Written Test: This checks your understanding of the theory module. A minimum score of 75% is needed to pass. Alternative evaluation methods are available for students with language, literacy, or accommodation needs.

  • Practical Demonstration: To demonstrate your job knowledge, you must inspect and adjust a safety harness, identify safe anchor points, and use protective equipment correctly.

Once you pass both parts, you’ll receive a certificate approved by Ontario’s Chief Prevention Officer (CPO). 

WAH Study Checklist

Need a little boost before test day? Use this quick checklist to make sure you understand the key areas that will be tested:

Hazard Awareness & Controls
Legislation & Standards
  • Common fall hazards on construction sites
  • Hazard recognition techniques
  • Conditions that increase fall risks (e.g., weather, equipment faults)
  • Hierarchy of controls: elimination, engineering, administrative, PPE
  • Guardrails, barriers, and safety nets
  • Ontario’s OHSA requirements for working at heights
  • Employer responsibilities and worker rights
  • CPO-approved training requirement
  • Proof of training; record-keeping rules
Fall Prevention
Safety Practices
  • Proper selection and use of fall protection systems
  • Components of fall arrest systems (harness, lanyards, anchors)
  • Equipment inspection, maintenance, and storage
  • Ladder setup (4:1 rule) and three-point contact
  • EWPs basics: load limits, harness use.
  • Work positioning vs. fall arrest in trade tasks
  • Importance of pre-task planning and hazard assessment
  • Scaffold and platform safety requirements
  • Rescue planning and emergency response procedures
  • Ladders, skylights, and damaged equipment practices
Practical Skills
Communication & Reporting
  • Correctly don and adjust a full-body harness
  • Demonstrate proper use and connection of lanyards and lifelines
  • Perform visual and functional inspections of fall protection equipment
  • How to report hazards or unsafe conditions
  • Effective communication on site

In Summary

  • Working at Heights training in Ontario is mandatory for anyone using fall protection at heights of three metres or more.
  • Training programs must be CPO-approved and include theory and practical modules.
  • To get your certification, pass a written test (75%) and a practical demonstration. 
  • Certificates are valid for three years before refresher training is required.
  • With Skilled Trades College, training is built into every pre-apprenticeship program, complete with industry-specific instruction.

FAQs

You need Working at Heights training before starting work on a construction project that involves using fall protection systems, such as a fall arrest system, travel restraint, or safety nets.

Working at Heights training in Ontario is mandatory for anyone working at elevations of three meters (10 feet) or more and is required to use fall protection equipment.

A Working at Heights certificate in Ontario is valid for three years. Once expired, workers must complete a refresher training from a training provider approved by the Ministry of Labour.

Get Working at Heights Certification in Ontario

Are you ready to start working at heights? Ontario’s construction industry offers incredible career opportunities, but you need the right certifications to get started. 

At Skilled Trades College of Canada, Working at Heights is built into all our 12-week pre-apprenticeship programs. Not only are you getting hands-on experience in electrical, plumbing, HVAC, and home renovation, but you’re also earning the essential safety certifications required to work in construction, including:

  • Working at Heights
  • First Aid & CPR
  • Lockout & Tagout
  • Workplace Hazardous Materials Information System (WHMIS)

What are you waiting for? Apply now to get job-ready and job-certified in just 12 weeks!

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PIPES LAYED

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WIRES PULLED

12,481+ Wires Pulled - Skilled Trades College

85,382+

2X4'S CUT

85,382+ 2X4'S Cut - Skilled Trades College

9,756+

PIPES LAYED