
Article 1 
Delegated Regulation (EU) 2017/655 is amended as follows:

((1)) the following Article 3a is inserted:
'
Article 3a 

1. Notwithstanding the application of the provisions of this Regulation, as amended by Commission Delegated Regulation (EU) 2018/987, approval authorities shall, until 31 December 2018, also continue to grant EU type-approvals to engine types or engine families in accordance with this Regulation, in its version applicable on 6 August 2018.’;
2. Notwithstanding the application of the provisions of this Regulation, as amended by Delegated Regulation (EU) 2018/987, the Member States shall, until 30 June 2019, also permit the placing on the market of engines based on an engine type approved in accordance with this Regulation, in its version applicable on 6 August 2018.';
((2)) the Annex to Delegated Regulation (EU) 2017/655 is amended in accordance with Annex I to this Regulation.
Article 2 
The Annex to Delegated Regulation (EU) 2017/655 is corrected in accordance with Annex II to this Regulation.
Article 3 
This Regulation shall enter into force on the twentieth day following that of its publication in the Official Journal of the European Union.
This Regulation shall be binding in its entirety and directly applicable in all Member States.Done at Brussels, 27 April 2018.
For the Commission
The President
Jean-Claude JUNCKER
ANNEX I

The Annex to Delegated Regulation (EU) 2017/655 is amended as follows:

((1)) points 2.6.1.1 and 2.6.1.2 are replaced by the following:
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2.6.1.1. Testing 9 engines with an accumulated service of less than a % of the EDP, in accordance with Table 1. Test results shall be submitted to the approval authority by 31 December 2022.
2.6.1.2. Testing 9 engines with an accumulated service higher than b % of the EDP, in accordance with Table 1. Test reports shall be submitted to the approval authority by 31 December 2024.';
((2)) in point 2.6.1.3, the following Table 1 is added:
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Reference power of selected engine (kW) a b
56 ≤ P < 130 20 55
130 ≤ P ≤ 560 30 70';
((3)) point 2.6.2.1 is replaced by the following:
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2.6.2.1. The test results of the first nine engines shall be submitted not later than 12 months after the first engine was installed in a non-road mobile machinery and not later than 18 months after starting the production of the approved engine type or engine family.
';
((4)) point 3.1.1 is replaced by the following:
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3.1.1. The non-road mobile machinery's operator performing the in-service monitoring test may be other than the usual professional one if the manufacturer demonstrates to the approval authority that the designated operator has attained enough skills and training to operate the non-road mobile machine.
';
((5)) in Appendix 3, in point 4.1, the table is replaced by the following:
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Slope of the regression line, m 0,9 to 1,1 – Recommended
Coefficient of determination, r2 min. 0,90 – Mandatory';
((6)) Appendix 5 is amended as follows:

((a)) the following point 2.1.5 is inserted before Figure 1:
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2.1.5. The reference work and reference CO2 mass of an engine type, or for all engine types within the same engine family, shall be those specified in points 11.3.1 and 11.3.2 of the addendum to the EU type approval certificate of the engine type or the engine family, as set out in Annex IV to Commission Implementing Regulation (EU) 2017/656.
';
((b)) point 3 is replaced by the following:
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3. 
In accordance with Standard ASTM E 29-06b (Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications), the final test results shall be rounded in one step to the number of places to the right of the decimal point indicated by the applicable exhaust emissions limit values set out in Article 18(2) of Regulation (EU) 2016/1628 plus one additional significant figure.
'.

ANNEX II

The Annex to Delegated Regulation (EU) 2017/655 is corrected as follows:

((1)) point 5.1 is replaced by the following:
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5.1. The ECU shall provide data stream information to the measurement instruments or data logger of the Portable Emissions Measurement System (PEMS) in accordance with the requirements set out in Appendix 7.
';
((2)) points 6.1 to 6.4 are replaced by the following:
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6.1. In-service monitoring tests shall be conducted using PEMS in accordance with Appendix 1.
6.2. Manufacturers shall comply with the test procedure set out in Appendix 2 with regard to the in-service monitoring of engines installed on non-road mobile machinery using a PEMS.
6.3. Manufacturers shall follow the procedures set out in Appendix 3 for the pre-processing of the data resulting of the in-service monitoring of engines installed on non-road mobile machinery using a PEMS.
6.4. Manufacturers shall follow the procedures set out in Appendix 4 for the determination of valid events during an in-service monitoring test of engines installed on non-road mobile machinery using a PEMS.';
((3)) point 8 is replaced by the following:
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8. 
Manufacturers shall follow the procedures set out in Appendix 5 for the gaseous pollutant emissions calculations for the in-service monitoring of engines installed on non-road mobile machinery using a PEMS.
';
((4)) in point 10.1, the first sentence is replaced by the following:
'Manufacturers shall draft a test report of the in-service monitoring of engines installed on non-road mobile machinery using a PEMS for each engine tested.';
((5)) Appendix 5 is corrected as follows:

((a)) point 2.2.1 is replaced by the following:
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2.2.1. 
The brake-specific gaseous pollutant emissions egas (g/kWh) shall be calculated for each averaging window and each gaseous pollutant in the following way:
egas=miWt2,i−Wt1,i
Where:


— mi is the mass emission of the gaseous pollutant during the ith averaging window, g/averaging window,
— W(t2,i) – W(t1,i) is the engine work during the ith averaging window, kWh.
';
((b)) point 2.2.3 is replaced by the following:
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2.2.3. 
The conformity factors shall be calculated for each individual valid averaging window and each individual gaseous pollutant in the following way:
CF=egasL
Where:


— egas is the brake-specific emission of the gaseous pollutant, g/kWh;
— L is the applicable limit, g/kWh.
';
((c)) in point 2.3, in the legend for the first equation, the indents relating to mCO2tj,i and mCO2,ref are replaced by the following:
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— mCO2tj,i is the CO2 mass measured between the test start and time tj,i, g;
— mCO2,ref is the CO2 mass determined for the NRTC, g;';
((d)) in point 2.3.1, in the legend for the equation, the indent relating to Pmax is replaced by the following:
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— Pmax is the maximum net power, as defined in Article 3(28) of Regulation (EU) 2016/1628, kW.';
((e)) point 2.3.2 is replaced by the following:
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2.3.2. 
The conformity factors shall be calculated for each individual averaging window and each individual pollutant in the following way:
CF=CFICFC
With


 CFI=mimCO2t2,i−mCO2t1,i (in service ratio) and
 CFC=mLmCO2,ref (certification ratio)

Where:


— mi is the mass emission of the gaseous pollutant during the ith averaging window, g/averaging window,
— mCO2t2,i−mCO2t1,i is the CO2 mass during the ith averaging window, g;
— mCO2,ref is the engine CO2 mass determined for the NRTC, g,
— mL is the mass emission of gaseous pollutant corresponding to the applicable limit on the NRTC, g.
';
((6)) in Appendix 8, point 2.8 is replaced by the following:
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2.8. Engine total swept volume [cm3]
'.
