Knowledge Centre

PEO publishes a variety of resources to assist licence holders in their roles and responsibilities, as well as guidance for applicants going through the licensure process.


Ontario professional engineers are part of a community of more than 87,500 PEO licence and certificate holders committed to enhancing the quality of life, safety and well-being in the province.

As Ontario’s engineering regulator, PEO relies heavily on its volunteers. More than 1,000 professional engineers, engineering interns and non-engineers volunteer their time each year on behalf of the association through their participation.

PEO's mandate, as described in the Professional Engineers Act, is to ensure that the public is protected and that individuals and companies providing engineering services uphold a strict code of professional ethics and conduct.

Online Learning Modules

PEO’s Online Learning Modules provide licence holders, volunteers, staff and applicants with various learning and development opportunities.

Practice Advice Resources and Guidelines

PEO offers a variety of practice advice resources to assist licence holders in providing professional and ethical engineering services.

Frequently Asked Questions

Previously, you were able to log in using either your PEO number or email as your username. However, with MFA enabled, the username must match your registered username. That is, if your web user account is created with email as your username, you must log in with your email; if your web user account is created with your PEO number, you must log in with your PEO number. 

In most situations only a professional engineer can practice professional engineering in Ontario. According to the Act "professional engineer" means a person who is granted a licence or a temporary licence by Professional Engineers Ontario. PEO can also issue a limited licence to an individual who, as a result of 10 or more years of specialized experience, has developed competence in a clearly defined area of professional engineering. Holders of limited licences are able to practice only within a narrowly defined area of professional engineering. Unlicenced individuals, such as technologists and technicians, are able to do any of the tasks normally reserved for professional engineers only if they are working under the supervision of a P.Eng.

Through completion of the questionnaire, practising licence holders are provided with the recommended number of hours they should commit to continuing knowledge activities. PEO has decided that the maximum recommendation will be 30 hours. This will be reduced based on risk mitigation and quality assurance measures that are part of the licence holder’s practice environment. The tracker provides a dynamic metric of the effect of these measures on the recommended hours.

Though PEO has tried to anticipate the potential answers to every question, it is quite possible that for some questions, no answer directly pertains to a licence holder’s current situation. If so, please choose the answer that is nearest to the answer you would prefer. If none is acceptable, choose the first answer (lowest risk). If you can, please notify PEO at providing the question and your preferred answer.

For the purposes of all regulatory directives regarding engineering practice, 'the public' is considered to be anyone other than the licence holder or his or her employer.

The questionnaire is intended to capture information regarding your current status so describe the practice environment for your current employment situation.

The last 12 months.

Choose the answer that poses the greatest risk. For all questions, the lowest risk is the first answer and the greatest risk is the last answer.

The questionnaire has 20 questions.

Existing information on PEO licence holders, such as current employer and contact information, is significantly flawed and incomplete. To correct this, and to obtain additional data needed for policy development purposes, all licence holders are asked to verify their personal information in the Member Portal. The questionnaire is designed to ensure that PEO has sufficient and necessary information on its licence holders to effectively carry out its role as the regulator of the profession.