From 1963 until his death, Laurendeau served as co-chair, along with Davidson Dunton, of the Royal Commission on Bilingualism and Biculturalism, a position that brought him considerable criticism from his nationalist colleagues.
Laurendeau served alongside Davidson Dunton as co-chair of the Royal Commission on Bilingualism and Biculturalism from 1963 until his death, facing criticism from his nationalist counterparts.