He was also the Minister responsible of Fisheries from 1990 to 1994. When Daniel Johnson, Jr. replaced Bourassa during the final months of the Liberal Mandate, Vallieres was named once again the chief Whip of the government.
Vallieres held another key position as Minister of Fisheries from 1990 to 1994. Following a change in leadership when Daniel Johnson, Jr. took over during the waning days of the Liberal administration, Vallieres regained his role as chief whip of the government.