1985; French: Loi sur les poids et mesures) (long title: An Act respecting weights and measures) is a Canadian law governing the units of measurements used in Canada.
Originally passed in 1970 as part of the Government of Canada's plan for metrication of Canada from Imperial measures, it was stopped in 1985 and changes were made to the act.
The act provides that the International System of measurement be used with what the act calls "Customary units used with the international system" such as hour, minutes, litres, hectares, tonne or metric ton.
In addition, the act allows usage of what it labels as "Canadian units" (the imperial system), such as miles, inches, imperial gallons, and acres.
The five permitted old French units are the foot (the French foot of 12.789 inches), arpent (for both length and area), and perch (for both length and area).