Syon Safety Ltd

Working at heights training in Ontario: who needs it and what counts

Written for Ontario employers. Reviewed September 27, 2026.

Do workers in Ontario need working at heights training?

Working at heights training is mandatory in Ontario for workers on construction projects who are required to use fall protection equipment — including travel restraint systems, fall arrest systems, safety nets, work belts, and safety belts. The requirement is set out in O. Reg. 297/13 and applied through O. Reg. 213/91 (Construction Projects). Training must be from a Chief Prevention Officer–approved provider, must be completed before a worker uses fall protection, and is valid for three years.

This is a construction-project requirement, not a general workplace rule

Working at heights training in Ontario applies to workers on construction projects — workplaces covered by O. Reg. 213/91. That boundary is often misunderstood: the requirement does not apply to all Ontario workplaces, only to those that fall under the Construction Projects regulation.

Workers at non-construction workplaces — offices, warehouses, maintenance operations — may have separate obligations to work safely at height under the OHSA and sector-specific regulations, but the mandatory CPO-approved working at heights program is a construction-sector requirement.

On a construction project, the obligation is triggered when a worker is required to use one of six specific fall protection methods. The training must be completed before the worker uses that equipment — not enrolled in, but completed.

The fall protection equipment that triggers the requirement

Under O. Reg. 213/91, an employer must ensure that a worker on a construction project completes working at heights training before the worker uses any of the following fall protection methods:

  • Travel restraint system
  • Fall restricting system
  • Fall arrest system
  • Safety net
  • Work belt
  • Safety belt

What the training must be — and the fraud warning

The training program must be approved by the Chief Prevention Officer of the Ministry of Labour, Immigration, Training and Skills Development, and it must be delivered by a provider who held CPO approval at the time the worker completed it. A course that was not CPO-approved at the time of delivery does not meet the requirement, regardless of its content.

The ministry issues a specific fraud warning about this: providers have accepted fees and issued training cards without delivering valid approved training. When enrolling workers, verify the provider appears on the MLITSD list of currently approved providers before booking.

Completing working at heights training does not replace the site-specific equipment training required by section 26.2 of O. Reg. 213/91. Workers need both: the general approved program and hands-on instruction on the specific systems in use at the site.

Ontario working at heights training: the essentials

Governing regulations
O. Reg. 297/13 (training requirements) and O. Reg. 213/91 (construction projects)
Who approves programs
Chief Prevention Officer, Ministry of Labour, Immigration, Training and Skills Development
Training validity
3 years from the date of successful completion
Renewal
Refresher program from a CPO-approved provider
Exemption
Workers directly employed by an automobile manufacturer or assembler
NL recognition
WorkplaceNL fall protection training accepted, with additional Ontario-specific training required

What employers are required to do

Ensuring valid training before a worker uses fall protection is an employer obligation. The employer must also verify that the provider was CPO-approved at the time the worker trained — not just that the worker holds a card.

Workers do not need to repeat approved training when they change employers, provided the training is still within its three-year validity period. The new employer is responsible for verifying that the existing training is valid.

  • Confirm each worker has completed valid training from a CPO-approved provider before assigning fall-protection work on a construction project.
  • Keep a training record for each worker: either a copy of the proof of completion document, or a written record noting the worker's name, the provider's name, the program name, and the date of completion.
  • Make training records available to a Ministry of Labour, Immigration, Training and Skills Development inspector on request.
  • Track expiry dates — training is valid for three years from the worker's date of completion, not from the date they joined your organisation.

Where the authority sits. Syon Safety is not a working at heights training provider and does not deliver the CPO-approved working at heights program. That training must be completed through a provider on the Ministry of Labour, Immigration, Training and Skills Development's approved list. What Syon Safety provides is the safety management documentation, policies, and gap analysis that help construction employers meet their obligations under O. Reg. 213/91 and the broader OHSA framework.

Frequently asked questions

Does Ontario's working at heights training apply to all workplaces?

No. The mandatory CPO-approved working at heights training applies only to workers on construction projects covered by O. Reg. 213/91. Workers at other workplaces may have separate obligations under their own sector regulations, but this training program is specific to construction.

How long is working at heights training valid in Ontario?

Three years from the date the worker successfully completes an approved program. After three years, a refresher program from a CPO-approved provider is required to maintain valid training.

Can a worker use their training certificate at a new construction employer?

Yes, if the training is still within its three-year validity period. The certificate belongs to the worker. The new employer must verify the training is valid and that the provider was CPO-approved at the time the training was completed.

What records must employers keep for working at heights training?

Either a copy of the worker's proof of completion document, or a written record containing the worker's name, the approved training provider's name, the program name, and the date of successful completion. Records must be available to an MLITSD inspector on request.

Who can deliver working at heights training in Ontario?

Only providers approved by the Chief Prevention Officer of the Ministry of Labour, Immigration, Training and Skills Development. Both the provider and the program must hold CPO approval. The ministry maintains a searchable list of currently approved providers.

Sources

Every regulatory claim above is taken from the body that sets the requirement, listed here so you can check it yourself rather than take our word for it.

How Syon Safety helps

The written program — policies, procedures, JHSC records and training matrices — built to survive an inspection.

Safety Program Documentation →

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