Licence Holders

Ontario professional engineers comprise a community of over 90,000 licence and certificate holders committed to enhancing the province's quality of life, public safety and well-being.

The P.Eng. designation symbolizes excellence in engineering, representing the highest standards of knowledge, experience and professionalism in the field. PEO safeguards the engineering profession by licensing competent and ethical professional engineers, regulating engineering practice and maintaining public safety.

Apply to be a Licence Holder

PEO protects and serves the public by ensuring all licensed professional engineers are qualified.

Practice Advice Resources and Guidelines

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

Licence Holder Services

Manage your online profile, pay fees and learn how you can participate in the governance of your profession. Download order forms for replacement stamps and certificates, resignation form and request to withhold information form.

Licence Holder Fees

PEO fees, payment options, reinstatement guide and reduced fees policies.

Offering Services to the Public

In Ontario, professional engineers who provide engineering services directly to the public must have a certificate of authorization (C of A).


Practice Evaluation and Knowledge Program

PEO’s Practice Evaluation and Knowledge (PEAK) program is an annual program designed to improve the association’s data about its practitioners’ engineering practice profiles while encouraging individualized continuing knowledge development.

Code of Ethics

PEO’s Code of Ethics is a basic guide for professional conduct with respect to society, employers, clients, colleagues, the engineering profession and him or herself.

P.Eng. Seal

The Professional Engineers Act requires every licence holder to have a seal issued by PEO identifying the holder as a “Licensed Professional Engineer.”

PEO Portal Login

Login to the PEO Portal to:

  • Complete the Practice Evaluation and Knowledge (PEAK) program 
  • pay fees by credit card
  • update home and business addresses
  • download receipts
  • print off membership card (through Receipts)
  • set preferred chapter affiliation
  • manage subscriptions