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Q-2, r. 33 - Regulation respecting environmental standards for heavy vehicles
Section 14
Disposition versions
14. No gasoline, natural gas or propane gas-powered heavy vehicle may emit hydrocarbons (HC) and carbon monoxide (CO) into the atmosphere in excess of the values listed in the following table, based on the vehicle model year:
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Model HC CO Visible
year (ppm) (%) emissions
(s/min)
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≥1998 200 1 5
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1988-97 220 1.2 5
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1980-87 300 3 5
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1975-79 400 4 5
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1970-74 800 6.5 5
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≤1969 1,000 8 5
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Model HC CO Visible
year (ppm) (%) emissions
(s/min)
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≥1998 200 1 5
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1988-97 220 1.2 5
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1980-87 300 3 5
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1975-79 400 4 5
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1970-74 800 6.5 5
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≤1969 1,000 8 5
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In addition, the sum of carbon dioxide (CO2) and carbon monoxide (CO) concentrations must not be less than 6%.
