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Q-2, r. 4.1 - Clean Air Regulation
Section 65
Disposition versions
65. New fuel burning equipment using exclusively fossil fuel other than used oil must not emit nitrogen oxides into the atmosphere in excess of the limits set out in the following table:
Rated heat Fuel used Nitrogen oxide
capacity emission limits
(MW) (g/GJ of fuel input)
≥ 3 and ≤ 30 gas 26
Light fuel oil 40
Heavy fuel oil 90
(nitrogen content ≤ 0.35%)
Heavy fuel oil 110
(nitrogen content > 0.35%)
> 30 gas 40
Light fuel oil 50
Heavy fuel oil 90
(nitrogen content ≤ 0.35%)
Heavy fuel oil 125
(nitrogen content > 0.35%)
Rated heat Fuel used Nitrogen oxide
capacity emission limits
(MW) (g/GJ of fuel input)
≥ 15 and ≤ 70 gas 80
Light or heavy fuel oil 175
> 70 gas 110
Light or heavy fuel oil 135
Rated heat Fuel used Nitrogen oxide
capacity emission limits
(MW) (g/GJ of fuel input)
≥ 3 and ≤ 30 gas 26
Light fuel oil 40
Heavy fuel oil 90
(nitrogen content ≤ 0.35%)
Heavy fuel oil 110
(nitrogen content > 0.35%)
> 30 gas 40
Light fuel oil 50
Heavy fuel oil 90
(nitrogen content ≤ 0.35%)
Heavy fuel oil 125
(nitrogen content > 0.35%)
In the case of fuel burning equipment referred to in the first paragraph that uses an auxiliary fossil fuel for less than 500 hours per year, the limit value that applies to nitrogen oxide emissions is 110 g/GJ for equipment with a rated heat capacity equal to or greater than 3 MW but less than or equal to 30 MW, and 125 g/GJ for equipment with a rated heat capacity greater than 30 MW.
In the case of existing fuel burning equipment installed or put into operation after 14 November 1979, the applicable limits are the limits set out in the following table:
Rated heat Fuel used Nitrogen oxide
capacity emission limits
(MW) (g/GJ of fuel input)
≥ 15 and ≤ 70 gas 80
Light or heavy fuel oil 175
> 70 gas 110
Light or heavy fuel oil 135
In the case of fuel burning equipment referred to in the third paragraph that uses an auxiliary fossil fuel for less than 500 hours per year, the limit value that applies to nitrogen oxide emissions is 175 g/GJ for equipment with a rated heat capacity equal to or greater than 15 MW but less than or equal to 70 MW, and 135 g/GJ for equipment with a rated heat capacity greater than 70 MW.
65. New fuel burning equipment using exclusively fossil fuel other than used oil must not emit nitrogen oxides into the atmosphere in excess of the limits set out in the following table:
Rated heat Fuel used Nitrogen oxide
capacity emission limits
(MW) (g/GJ of fuel input)
≥ 3 and ≤ 30 Natural gas 26
Light fuel oil 40
Heavy fuel oil 90
(nitrogen content ≤ 0.35%)
Heavy fuel oil 110
(nitrogen content > 0.35%)
> 30 Natural gas 40
Light fuel oil 50
Heavy fuel oil 90
(nitrogen content ≤ 0.35%)
Heavy fuel oil 125
(nitrogen content > 0.35%)
Rated heat Fuel used Nitrogen oxide
capacity emission limits
(MW) (g/GJ of fuel input)
≥ 15 and ≤ 70 Natural gas 80
Light or heavy fuel oil 175
> 70 Natural gas 110
Light or heavy fuel oil 135
Rated heat Fuel used Nitrogen oxide
capacity emission limits
(MW) (g/GJ of fuel input)
≥ 3 and ≤ 30 Natural gas 26
Light fuel oil 40
Heavy fuel oil 90
(nitrogen content ≤ 0.35%)
Heavy fuel oil 110
(nitrogen content > 0.35%)
> 30 Natural gas 40
Light fuel oil 50
Heavy fuel oil 90
(nitrogen content ≤ 0.35%)
Heavy fuel oil 125
(nitrogen content > 0.35%)
In the case of existing fuel burning equipment installed or put into operation after 14 November 1979, the applicable limits are the limits set out in the following table:
Rated heat Fuel used Nitrogen oxide
capacity emission limits
(MW) (g/GJ of fuel input)
≥ 15 and ≤ 70 Natural gas 80
Light or heavy fuel oil 175
> 70 Natural gas 110
Light or heavy fuel oil 135
