OpenLegislation

Division 2.2

United Kingdom

Values applying from 18 January 2016:

Table 2

Exhaust emission limits for compression ignition (CI) engines ^f1

Swept VolumeSV(L/cyl)	Rated Engine Power P_N(kW)	ParticulatesPT(g/kWh)	Hydrocarbons + Nitrogen Oxides $HC + {NO}_{x}$ (g/kWh)
+ Alternatively, compression-ignition engines with rated engine power at or above 37 kW and below 75 kW and with a swept volume below 0,9 L/cyl shall not exceed a PT emission limit of 0,20 g/kWh and a combined $HC + {NO}_{x}$ emission limit of 5,8 g/kWh.
++ Any compression-ignition engine shall not exceed a Carbon monoxide (CO) emission limit of 5,0 g/kWh.
$SV < 0,9$	$P_{N} < 37$	The values referred to in table 1
	$37 \leq P_{N} < 75$ ^f2	0,3	4,7
	$75 \leq P_{N} < 3700$	0,15	5,8
$0,9 \leq SV < 1,2$	$P_{N} < 3700$	0,14	5,8
$1,2 \leq SV < 2,5$		0,12	5,8
$2,5 \leq SV < 3,5$		0,12	5,8
$3,5 \leq SV < 7,0$		0,11	5,8

Table 3

Exhaust emission limits for spark ignition (SI) engines

Type of engine	Rated EnginePower P_N(kW)	Carbon monoxideCO(g/kWh)	Hydrocarbons + Nitrogen Oxides $HC + {NO}_{X}$ (g/kWh)
Stern-drive and inboard engines	$P_{N} \leq 373$	75	5
	$373 < P_{N} \leq 485$	350	16
	$P_{N} > 485$	350	22
Outboard engines and PWC engines	$P_{N} \leq 4,3$	$500 - (5,0 \times P_{N})$	30
	$4,3 < P_{N} \leq 40$	$500 - (5,0 \times P_{N})$	$15,7 + (\frac{50}{{P_{N}}^{0,9}})$
	$P_{N} > 40$	300	$15,7 + (\frac{50}{{P_{N}}^{0,9}})$

Annotations

Footnotes

f1

++

Any compression-ignition engine shall not exceed a Carbon monoxide (CO) emission limit of 5,0 g/kWh.

f2

+

Alternatively, compression-ignition engines with rated engine power at or above 37 kW and below 75 kW and with a swept volume below 0,9 L/cyl shall not exceed a PT emission limit of 0,20 g/kWh and a combined $HC + {NO}_{x}$ emission limit of 5,8 g/kWh.