Mr. Dingwall is highly regarded for his substantial, in-depth experience in both the private and public sectors, at both the national and international levels. In the 1993 Canadian election, under The Honourable Jean Chrétien, Mr. Dingwall was appointed to Cabinet as the Minister of Public Works and Minister of Supply and Services, Minister responsible for Canada Post, Minister responsible for Canada Mortgage and Housing, Minister responsible for the Royal Canadian Mint, Minister responsible for Defence Construction Limited, and the Minister responsible for the Atlantic Canada Opportunities Agency. Mr. Dingwall also served on several Cabinet committees, including the Treasury Board and Economic Development. In 1996, Mr. Dingwall convinced Prime Minister Jean Chrétien to host the G7 Summit in Halifax, Nova Scotia, Canada. Leaders from the G7 convened in Halifax and Boris Yeltsin, the President of Russia, was a special attendee at that session. In 1996, Mr. Dingwall was appointed Minister of Health and, in 1997, he passed the Tobacco Control Act which, at the time, was the toughest tobacco legislation in the world. He was subsequently honoured by the Canadian Cancer Society and the World Health Organization.