Both the Parti Québécois and the federal New Democratic Party have called for Quebec's language laws to be applied to federally-regulated businesses such as banks.
Today the federal Minister responsible for Quebec, Christian Paradis, said the results of a study that looked at those workplaces suggested there is no need for legislation to regulate their use of French.
The study looked at companies that are not covered under the Official languages Act or the French language charter.
Two thirds of the workers affected work in the banking, telecommunications and transport industries.
Paradis said the study shows that many federally-regulated private businesses have voluntarily obtained a francization certificate from the Office québécois de la langue française (OQLF).
He said the French language must play a central role in Canada's future.
"Promoting the French language is a mission that the Harper government wants to fulfill in a responsible and effective manner, while concentrating on what the people of Quebec see as priorities," Paradis said.