Canada’s new government has a mandate for change. A stronger Canada depends on a strong and effective public service – one that is focused on execution, delivery, and impact.
Today, the Prime Minister, Mark Carney, announced the following changes in the senior ranks of the public service:
Jean-François Tremblay, currently Deputy Minister of Environment and Climate Change, becomes Senior Official at the Privy Council Office, effective June 30, 2025, while he prepares for his upcoming role as Ambassador and Permanent Representative of Canada to the Organisation for Economic Co-operation and Development.
Mollie Johnson, currently Deputy Secretary to the Cabinet (Plans and Consultations) and, concurrently, Deputy Secretary to the Cabinet (Clean Growth), Privy Council Office, becomes Deputy Minister of Environment and Climate Change, effective June 30, 2025.
Nancy Hamzawi, currently Executive Vice-President of the Public Health Agency of Canada, becomes President of the Public Health Agency of Canada, effective June 20, 2025.
Alison O’Leary, currently Assistant Deputy Minister, Federal-Provincial Relations and Social Policy, Department of Finance Canada, becomes Associate Deputy Minister of Finance, effective June 30, 2025.
The Prime Minister also announced that Kaili Levesque, Associate Deputy Minister of Fisheries and Oceans, will provide direct support to the Secretary of State (Nature), and that Mark Schaan, Deputy Secretary to the Cabinet (Artificial Intelligence), Privy Council Office, will provide direct support to the Minister of Artificial Intelligence and Digital Innovation.
The Prime Minister took the opportunity to congratulate Heather Jeffrey, former President of the Public Health Agency of Canada, on her recent retirement from the public service. He thanked her and Suzy McDonald, Associate Deputy Minister of Finance, for their dedication and service to Canadians throughout their careers and wished them all the best in the future.