<P> The Liberal federal government of Pierre Trudeau first began implementing metrication in Canada in 1970 with a government agency dedicated to implementing the project , the Metric Commission , being established in 1971 . By the mid-1970s , metric product labelling was introduced . In 1972 , the provinces agreed to make all road signs metric by 1977 . There was some resistance to metrication , especially as the sectors of the economy where the federal Weights and Measures Act required metric to be used grew in number . The metrication of gasoline and diesel fuel sales in 1979 prompted 37 Progressive Conservative Members of Parliament to open a `` freedom to measure '' gas station in Carleton Place , Ontario , selling gas in both imperial gallons and litres . The city of Peterborough , Ontario , was a noted hotbed of opposition to metrication , having been one of the government 's three test centres for the metrication process . Bill Domm , a Member of Parliament representing the riding of Peterborough , was one of the country 's most outspoken opponents of metrication . During this period , a few government employees lost their jobs for their opposition to metrication . Neil Fraser , an official with Revenue Canada who publicly opposed mandatory metric conversion , was dismissed for `` conduct unacceptable for a public servant . '' </P>
<P> The Liberal federal government of Pierre Trudeau first began implementing metrication in Canada in 1970 with a government agency dedicated to implementing the project , the Metric Commission , being established in 1971 . By the mid-1970s , metric product labelling was introduced . In 1972 , the provinces agreed to make all road signs metric by 1977 . There was some resistance to metrication , especially as the sectors of the economy where the federal Weights and Measures Act required metric to be used grew in number . The metrication of gasoline and diesel fuel sales in 1979 prompted 37 Progressive Conservative Members of Parliament to open a `` freedom to measure '' gas station in Carleton Place , Ontario , selling gas in both imperial gallons and litres . The city of Peterborough , Ontario , was a noted hotbed of opposition to metrication , having been one of the government 's three test centres for the metrication process . Bill Domm , a Member of Parliament representing the riding of Peterborough , was one of the country 's most outspoken opponents of metrication . During this period , a few government employees lost their jobs for their opposition to metrication . Neil Fraser , an official with Revenue Canada who publicly opposed mandatory metric conversion , was dismissed for `` conduct unacceptable for a public servant . '' </P>
when did canada switch from gallons to litres
when did canada switch from gallons to litres
1979
1979