About the Office

The Office of the Integrity Commissioner of Ontario was established in 1988 to encourage high standards of ethical conduct for Members of Provincial Parliament.  The Office has established itself as an independent ethics leader, working to encourage and support high ethical standards that strengthen trust and confidence in the Ontario government.

As an Officer of the Legislative Assembly, the Integrity Commissioner is independent of government.

Over the years, the Integrity Commissioner’s responsibilities have grown to seven mandates, under five pieces of legislation.

Find out about each mandate by clicking the categories at the top of this page.

Merger with Office of the Conflict of Interest Commissioner

In May 2019, the Office took on the responsibilities of the Office of the Conflict of Interest Commissioner. In this role, the Integrity Commissioner provides conflict of interest advice and direction to a broad range of public servants under the Public Service of Ontario Act, 2006.


The Integrity Commissioner may investigate matters in the following circumstances:

The Integrity Commissioner cannot investigate matters outside the jurisdiction of the Office.

Complaints from the public

The Commissioner can receive complaints from members of the public about alleged breaches of the Lobbyists Registration Act. Find out more here.

The Commissioner does not have jurisdiction to receive complaints from the public about alleged breaches in any of the other Office mandates.

Municipal Integrity

The Office does not have jurisdiction over Ontario municipalities. For information about local integrity issues, please contact your municipal office.

How to reach us

General & media inquiries
Telephone: 416-314-8983
Fax: 416-314-8987

Mandate Specific Inquiries

Questions about Lobbyist Registration

Inquiries from MPPs or Ministers' Staff

Disclosure of Wrongdoing by Ontario public servants
416-314-1581 or toll free at 1-866-884-4470

Public Sector Ethics - Inquiries for the Integrity Commissioner as Ethics Executive
416-314-8983 or toll free at 1-866-956-1191

Expenses Review

Mailing Address

Office of the Integrity Commissioner
2 Bloor Street West, Suite 2100
Toronto, ON  M4W 3E2