2. EXHAUST EMISSION REQUIREMENTS

Propulsion engines shall be designed, constructed and assembled so that when correctly installed and in normal use, emissions shall not exceed the limit values obtained from point 2.1, Table 1 and point 2.2, Tables 2 and 3: 2.1. Values applying for the purposes of Article 55(2) and Table 2 of point 2.2: Table 1 (g/kWh) Type Carbon monoxide COA BP_(N)n Hydrocarbons HCA BP_(N)n Nitrogen oxides NO_(x) Particulates PT A B n A B n Two-stroke spark ignition 150,0 600,0 1,0 30,0 100,0 0,75 10,0 Not applicable Four-stroke spark ignition 150,0 600,0 1,0 6,0 50,0 0,75 15,0 Not applicable Compression ignition 5,0 0 0 1,5 2,0 0,5 9,8 1,0 Where A, B and n are constants in accordance with the table, P_(N) is the rated engine power in kW. 2.2. Values applying from 18 January 2016: Table 2 Exhaust emission limits for compression ignition (CI) engines + 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. Swept Volume SV (L/cyl) Rated Engine Power P_(N) (kW) Particulates PT (g/kWh) Hydrocarbons + Nitrogen Oxides HC NO_(x) (g/kWh) SV 0,9 P_(N) 37 The values referred to in table 1 37 P_(N) 75 0,30 4,7 75 P_(N)3700 0,15 5,8 0,9 SV 1,2 P_(N)3700 0,14 5,8 1,2 SV 2,5 0,12 5,8 2,5 SV 3,5 0,12 5,8 3,5 SV 7,0 0,11 5,8 Table 3 Exhaust emission limits for spark ignition (SI) engines Type of engine Rated Engine Power P_(N) (kW) Carbon monoxide CO (g/kWh) Hydrocarbons + Nitrogen Oxides HC NO_(X) (g/kWh) Stern-drive and inboard engines P_(N) 373 75 5 373 P_(N) 485 350 16 P_(N) 485 350 22 Outboard engines and PWC engines P_(N) 4,3 500(5,0 P_(N)) 30 4,3 P_(N) 40 500(5,0 P_(N)) 15,7(50P_(N)0,9) P_(N) 40 300 15,7(50P_(N)0,9) 2.3. Test cycles: Test cycles and weighting factors to be applied: The following requirements of ISO standard 8178-4:2007 shall be used, taking into account the values set out in the table below. For variable speed CI engines test cycle E1 or E5 shall be applied or alternatively, above 130 kW, test cycle E3 may be applied. For variable speed SI engines test cycle E4 shall be applied. Cycle E1, Mode number 1 2 3 4 5 Speed Rated speed Intermediate speed Low-idle speed Torque, % 100 75 75 50 0 Weighting factor 0,08 0,11 0,19 0,32 0,3 Speed Rated speed Intermediate speed Low-idle speed Cycle E3, Mode number 1 2 3 4 Speed, % 100 91 80 63 Power, % 100 75 50 25 Weighting factor 0,2 0,5 0,15 0,15 Cycle E4, Mode number 1 2 3 4 5 Speed, % 100 80 60 40 Idle Torque, % 100 71,6 46,5 25,3 0 Weighting factor 0,06 0,14 0,15 0,25 0,40 Cycle E5, Mode number 1 2 3 4 5 Speed, % 100 91 80 63 Idle Power, % 100 75 50 25 0 Weighting factor 0,08 0,13 0,17 0,32 0,3 Notified bodies may accept tests carried out on the basis of other tests cycles as specified in a harmonised standard and as applicable for the engine duty cycle. The engine manufacturer shall be responsible for defining those engines from his range which are to be included in an engine family. A parent engine shall be selected from an engine family in such a way that its emissions characteristics are representative for all engines in that engine family. The engine incorporating those features that are expected to result in the highest specific emissions (expressed in g/kWh), when measured on the applicable test cycle, should normally be selected as the parent engine of the family. The test fuel used for exhaust emission testing shall meet the following characteristics: Petrol Fuels Property RF-02-99 Unleaded RF-02-03 Unleaded min max min max Research Octane Number (RON) 95 — 95 — Motor Octane Number (MON) 85 — 85 — Density at 15 ^(o)C (kg/m^(3)) 748 762 740 754 Initial boiling point (°C) 24 40 24 40 Mass fraction of sulphur (mg/kg) — 100 — 10 Lead content (mg/l) — 5 — 5 Reid vapour pressure (kPa) 56 60 — — Vapour pressure (DVPE) (kPa) — — 56 60 Diesel Fuels Property RF-06-99 RF-06-03 min max min max Cetane number 52 54 52 54 Density at 15 ^(o)C (kg/m^(3)) 833 837 833 837 Final boiling point (°C) — 370 — 370 Flash point (°C) 55 — 55 — Mass fraction of sulphur (mg/kg) To be reported 300 (50) — 10 Mass fraction of ash (%) To be reported 0,01 — 0,01 Notified bodies may accept tests carried out on the basis of other tests fuel as specified in a harmonised standard.

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Source: EUR-Lex (Cellar) · retrieved 2026-11-05 · Text as adopted (Official Journal); later amendments are not incorporated in this text.