About PEO

Under the authority of the Professional Engineers Act, PEO governs over 90,000 licence and certificate holders and regulates professional engineering in Ontario to protect the public interest.

Our Mission

Regulate and advance the practice of engineering to protect the public interest.

Our Vision

The trusted leader in professional self-regulation.

Our Core Values

PEO’s core values are intended to inform the behaviour of its members, staff, and volunteer leaders in their everyday activities and interactions:


  • PEO protects the public interest by being accountable to the public, such that PEO staff and volunteers accept responsibility for their actions and decisions, and deliver what they promise to deliver, and PEO as an organization honours its legislated and financial obligations. Staff and volunteer performance will be appraised based on meeting objectives within desired time frames.


  • PEO demonstrates respect for its staff, volunteers, applicants, licence holders, and external stakeholders through fair practices and timely, informative communications. In turn, PEO expects that its regulatory obligations and activities in serving and protecting the public interest are respected by its stakeholders.


  • PEO demonstrates alignment between the Professional Engineers Act and its processes and practices, including consistency of its policies and their application to maintain integrity of the licence, and will adhere firmly and impartially to its legislated requirements in pursuit of regulatory excellence.


  • PEO operates in a professional manner with its applicants, licence holders and external stakeholders, by demonstrating competence, impartiality and reliability.


  • PEO achieves its goals through effective teamwork and collaborative partnerships both within the organization, between its staff and volunteers, and with other bodies involved in the practice of professional engineering.

What is PEO?

Established on June 14, 1922, Professional Engineers Ontario (PEO) is the licensing and regulating body for professional engineering in the province. 



Comprised of both elected professional engineers and members appointed by the office of the Attorney General of Ontario, PEO Council provides the overall direction for the regulator and the profession.

Committees and Task Forces

PEO Council mandates the creation of committees to help develop specific policies that guide the regulator.


Chapters and Regional Offices

PEO’s 36 chapters provide a link between licence holders and EITs and PEO Council, and promote the value of engineering to local communities.

Executive Leadership Team

PEO’s executive leadership team includes senior leadership from all departments: administration, regulatory compliance, finance, licensing and registration, IT, communications and tribunals and regulatory affairs.


Information and documents on PEO operations: annual reports, audited financial statements, PEO Policies and Q&As about PEO operations from annual general meetings.

Annual General Meetings

Every year Ontario engineers gather to participate in the governance of the profession and welcome the incoming Council.


Engineering Dimensions

PEO’s official publication, Engineering Dimensions is published quarterly and is distributed to all PEO licence holders. It focuses on PEO operations and legal, regulatory and ethical aspects of the profession.

Government Liaison Program

PEO’s Government Liaison Program (GLP) uses the regulator’s province-wide strength to deliver messages to Members of Provincial Parliament (MPPs) and other stakeholders.

Student Membership Program

Open to all undergraduate engineering students, PEO’s Student Membership Program is a great way for students to connect with PEO and the engineering community.