ANNEX I

1. INTRODUCTION
This Annex sets out the methodology for determining the NEDC CO2 value of individual M1 vehicles.

2. DETERMINATION OF THE NEDC CO2 VALUE FOR THE WLTP INTERPOLATION FAMILY

2.1. Correlation tool
The type-approval authority shall ensure that the NEDC CO2 values to be used as reference for the purpose of Section 3 are determined by way of simulations in accordance with the provisions set out in this Annex.
The Commission shall provide a simulation tool for that purpose (hereinafter the ‘correlation tool’) in the form of downloadable, executable, software. With regard to Not-Off-Vehicle Charging Hybrid Electric Vehicles (NOVC-HEV) and Off-Vehicle Charging Hybrid Electric Vehicles (OVC-HEV), the NEDC CO2 values to be used as a reference for the purpose of Section 3 shall be determined by way of physical vehicle tests instead of correlation tool simulations. The physical measurements shall be performed in accordance with the relevant provisions referring to physical vehicle tests set out in this Annex. The input data for the physical vehicle tests shall be determined and submitted to the type-approval authority or, where applicable, technical service, in accordance with point 2.4.

2.1.1. Access to the correlation tool
The correlation tool shall be installed on a computer of the type-approval authority or, where applicable, the technical service, following the instructions provided in the following website:
(http://ec.europa.eu/clima/policies/transport/vehicles/cars/documentation_en.htm)
The type-approval authority shall ensure that the correlation tool is operated in accordance with the requirements of this Regulation and the user instructions set out in the user manual.
Support to the approval authorities and technical services using the correlation tool for the purpose of this Regulation shall be provided by the Commission on request. Requests for support shall be addressed to the following functional mailbox:
co2mpas@jrc.ec.europa.eu
The correlation tool shall be accessible to other users, however, support shall only be provided to those users within the limits of available resources.
https://co2mpas.io/
From 1 August 2017 jrc-co2mpas@ec.europa.eu

2.1.2. Designation of correlation tool users
Member States shall inform the Commission of the respective contact points responsible for executing the correlation tool runs at the approval authority and, where applicable, at the technical services. Only one contact point per authority or service shall be designated. The information provided to the Commission shall include the following (the name of the organisation, the name of the person responsible, the postal address, the email address and the telephone number). This information shall be sent to the following functional mailbox:
EC-CO2-LDV-IMPLEMENTATION@ec.europa.eu
Electronic signing keys for the purpose of the execution of the correlation tool shall be provided only at the request of the contact point. The Commission shall publish guidance on the procedure to follow for such requests.
Substituted by Commission Implementing Regulation (EU) 2017/1231 of 6 June 2017 amending Implementing Regulation (EU) 2017/1153 setting out a methodology for determining the correlation parameters necessary for reflecting the change in the regulatory test procedure for the purpose of clarifying procedural elements and amending Regulation (EU) No 1014/2010 (Text with EEA relevance).
Any up-dates of the mailbox address will be made available on the website.
Electronic signing keys to be provided by the European Commission Joint Research Centre

2.1.3. Annual update of the correlation tool
The performance of the correlation tool shall be continuously reviewed, taking into account information provided, in particular, by the contact persons referred to in point 2.1.2. Where appropriate, the Commission shall prepare a new version of the tool to be released annually on 1 September. The new version shall not affect the validity of results provided by previous versions.
The new version may be applied for the purpose of the procedure set out in Section 3 of this Annex from the date of its release. With the agreement of the type-approval authority or the technical service, the previous version of the correlation tool may, however, continue to be used during a maximum period of two months following the release of the new version.
The version used as well as the operating system of the computer on which the correlation tool has been run by the type-approval authority or technical service shall be indicated in the electronically signed correlation tool output report.
Where the applicability of the new version requires the adjustment of any provisions set out in this Regulation, the release of the new version shall not take place until the Regulation has been amended accordingly.

2.1.4. Ad-hoc adjustments of the correlation tool
Notwithstanding point 2.1.3, in case of serious malfunctioning of the correlation tool for the purpose of the procedure set out in Section 3, a new version of the tool shall be prepared and released as soon as possible following the detection of the malfunction. The new version shall apply from the date of its release and shall not affect the validity of results provided by previous versions.
Where the applicability of the new version requires the adjustment of any provisions set out in this Regulation, the release of the new version shall not take place until the Regulation has been amended accordingly.
Substituted by Commission Implementing Regulation (EU) 2019/1840 of 31 October 2019 amending Implementing Regulation (EU) 2017/1153 as regards the reporting of WLTP CO2 values for certain categories of new passenger cars and adjusting the input data for the correlation tool (Text with EEA relevance).

2.2. Identification of the WLTP test results to be used for the purpose of defining the input data for the simulation model
The input data for the correlation tool simulations shall be taken from the relevant WLTP test results for vehicle H and, where applicable, vehicle L as defined in accordance with point 4.2.1 of Sub-Annex 4 to Annex XXI to Regulation (EU) 2017/1151. Where more than one WLTP type-approval test of vehicle H or L is performed in accordance with Table A6/2 of Annex XXI to that Regulation, the following test results shall be used for the purpose of determining the input data:
(a) In the case two type approval tests are performed, the test results with the highest combined CO2 emissions shall be used;
(b) In the case three type approval tests are performed, the test results with the median combined CO2 emissions shall be used.

2.2a. WLTP test conditions
In order for the WLTP test to be considered relevant in accordance with point 2.2 and for the purpose of determining the input data set out in point 2.4, the test conditions set out in Annex XXI to Regulation (EC) No 2017/1151 shall apply, with the following precisions:
(a) The correction of the WLTP test results for CO2 mass emissions in accordance with Appendix 2 to Sub-Annex 6 and Appendix 2 to Sub-Annex 8 to Annex XXI to Regulation (EU) 2017/1151 shall apply to all such test results, notwithstanding the provisions in paragraph 3.4.4(a) of Appendix 2 to Sub-Annex 6 and paragraph 1.1.4(a) of Appendix 2 to Sub-Annex 8 to Annex XXI to that Regulation;
(b) Without prejudice to the requirements of Regulation (EU) 2017/1151, if the test vehicle is fitted with technologies that influence its CO2 performance, including but not limited to those referred to in entries 42 to 50 of the input data matrix set out in point 2.4, and which are intended to function during the test, those technologies shall be operating during the vehicle test, regardless of the test procedure applied, i.e. NEDC or WLTP;
(c) If the test vehicle is equipped with automated transmissions, the same driver-selectable mode shall be used, regardless of the test procedure applied. Where the best-case and worst-case modes are used for the WLTP tests in accordance with point 1.2(c) of Appendix 6 to Sub-Annex 8 to Annex XXI to Regulation (EU) 2017/1151, the worst-case mode shall be used as input to the correlation tool as well as for any NEDC physical test;
(d) If the test vehicle is equipped with manual transmissions, the term nmin_drive_set shall be as defined by the formula set out in point (k) (3) of paragraph 2 of Sub-Annex 2 to Annex XXI to Regulation (EU) 2017/1151.
With the approval of the approval authority or, where applicable, the technical service, the manufacturer may calculate the gear shifting points differently, provided that this is justified in view of the drivability of the vehicle, and that the additional power safety margin applied in accordance with point 3.4 of Sub-Annex 2 to Annex XXI to Regulation (EU) 2017/1151 does not exceed 20 %.
The conditions referred to in points (a) to (d) shall apply for the purpose of the correlation performed pursuant to this Regulation, and shall be without prejudice to the provisions laid down in Regulation (EU) 2017/1151 and to type approvals granted pursuant to that Regulation.
Inserted by Commission Implementing Regulation (EU) 2018/2043 of 18 December 2018 amending Implementing Regulation (EU) 2017/1153 to clarify the WLTP test conditions and provide for the monitoring of type approval data (Text with EEA relevance).

2.2b. Applicability of the WLTP test conditions
The precisions referred to in point 2.2a.(a) to (d) shall apply in accordance with the following:
(a) For new vehicle types, from the entry into force of this Regulation;
(b) For existing vehicle types, manufacturers shall, with regard to those vehicle types that cover vehicles placed on the market in 2020, provide the approval authority with evidence on the basis of which the approval authority shall confirm whether the test conditions referred to in points (a) to (d) of point 2.2a. have been met in the WLTP approval tests.
The confirmation shall indicate the interpolation family identifier, and the confirmation with regard to each of the test conditions referred to in points (a) to (d). The approval authority shall issue the confirmation to the manufacturer and shall ensure that the confirmation is recorded and can be made available without delay at the request of the Commission.
Where the approval authority cannot confirm that one or more of the test conditions referred to have been complied with, the manufacturer shall ensure that a new WLTP test, or, where applicable, test series, in accordance with Sub-Annex 6 to Annex XXI to Regulation (EU) 2017/1151 are performed under the supervision of an approval authority or, where applicable, technical service, applying the test conditions set out in point 2.2a.(a) to (d), for the interpolation family in question, including a new correlation in accordance with this Regulation.
The manufacturer may, in the case where only the test condition referred to in point 2.2a.(a) is not met, correct that value in the input matrix without the need for a new WLTP test.
The approval authority or, where applicable, the designated technical service shall record the results of the re-testing or correction and the correlation in accordance with paragraph 5 of Annex I, and the complete correlation file based on the re-testing in-put data shall be transmitted to the Commission in accordance with point 3.1.1.2 by 30 April 2021 at the latest.

2.3. Determination of the input data and conditions for the operation of the correlation tool
The test conditions referred to in Annex XII to Regulation (EC) No 692/2008 shall be taken into account in the correlation tool simulations, including the precisions provided for in points 2.3.1 to 2.3.7 of this Annex.
The physical vehicle measurements referred to in point 3 shall be performed in accordance with the conditions referred to in that Regulation, with the precisions given in this Annex, and, where applicable, the input data defined in point 2.4.

2.3.1. Determination of the NEDC vehicle inertia
The NEDC reference mass of vehicles H and, where applicable, of vehicles L and R shall be determined as follows:
RMn,L = (MROL – 75 + 100) [kg]
RMn,H = (MROH – 75 + 100) [kg]
RMn,R = (MROR – 75 + 100) [kg]
Where,
Vehicle R is the representative vehicle of the Road Load Matrix Family as defined in point 5.1 of Sub-Annex 4 to Annex XXI to Commission Regulation (EU) 2017/1151;
MRO is the mass in running order as defined in Article 3(1)(d) of Regulation (EC) No 443/2009 for vehicles H, L and R respectively.
The reference mass to be used as input for the simulations and, where applicable, for a physical vehicle test shall be the inertia value set out in Table 3 of Annex 4a to UN/ECE Regulation No 83 which is equivalent to the reference mass, RM, determined in accordance with this point and referred to as TMn,L, TMn,H and TMn,R.
Commission Regulation (EU) 2017/1151 of 1 June 2017 supplementing Regulation (EC) No 715/2007 of the European Parliament and of the Council on type-approval of motor vehicles with respect to emissions from light passenger and commercial vehicles (Euro 5 and Euro 6) and on access to vehicle repair and maintenance information, amending Directive 2007/46/EC of the European Parliament and of the Council, Commission Regulation (EC) No 692/2008 and Commission Regulation (EU) No 1230/2012 and repealing Regulation (EC) No 692/2008 (OJ L 175, 7.7.2017, p. 1).
Substituted by Commission Implementing Regulation (EU) 2018/1002 of 16 July 2018 amending Implementing Regulation (EU) 2017/1153 to clarify and simplify the correlation procedure and to adapt it to changes to Regulation (EU) 2017/1151 (Text with EEA relevance).

2.3.2. Determination of the pre-conditioning effect
In preparing the chassis-dynamometer for the execution of a type-approval test, the vehicle is pre-conditioned in order to reach similar conditions to those used in the coast-down test. The pre-conditioning procedure used in the WLTP test differs from that used for the purpose of NEDC so that, with equal road loads, the vehicle is considered subject to higher forces under the WLTP. That difference shall be set at 6 Newton and that value shall be used for the calculation of the NEDC road loads in accordance with point 2.3.8.

2.3.3. Ambient conditions referred to in point 3.1.1 of UN/ECE Regulation No 83
For the purpose of the correlation tool, the test cell temperature shall be set at 25 °C.
Also in the case of a physical vehicle measurement pursuant to point 3, the test cell temperature shall be set at 25 °C. However, on request by the manufacturer, the test cell temperature may be set at a value between 20 to 25 °C for the physical measurement.

2.3.4. Determination of the initial battery state of charge
The initial battery state of charge shall be set to at least 99 per cent for the purpose of the correlation tool test. The same shall apply in the case of a physical vehicle test.

2.3.5. Determination of the difference in tyre pressure prescriptions
According to point 6.6.3 of Appendix 3 to Annex I to Regulation (EU) 2017/1151, the lowest recommended tyre pressure for the vehicle test mass shall be used during the coast down for the road load determination, while this is not specified in the NEDC. The tyre pressure to be taken into account for the purpose of calculating the NEDC road load in accordance with point 2.3.8 shall be the average between the two axles of the average between the minimum and maximum tyre pressure permitted for the selected tyres on each axle for the NEDC reference mass of the vehicle. The calculation shall be carried out for vehicle H and, where applicable, for vehicles L and R with the following formulae:
For vehicle H:
Pavg,H=Pmax,H+Pmin,H2
For vehicle L:
Pavg,L=Pmax,L+Pmin,L2
For vehicle R:
Pavg,R=Pmax,R+Pmin,R2′
Where,

Pmax,
is the average of the maximum tyre pressures of the selected tyres for the two axles;

Pmin,
is the average of the minimum tyre pressures of the selected tyres for the two axles.
The corresponding effect in terms of resistance applied to the vehicle shall be calculated using the following formulae for vehicles H, L and R:
For vehicle H:
TPH=Pavg,HPmin,H−0,4
For vehicle L:
TPL=Pavg,LPmin,L−0,4
For vehicle R:
TPR=Pavg,RPmin,R−0,4

2.3.6. Determination of the tyre tread depth (TTD)
According to point 4.2.2.2 of Sub-Annex 4 to Annex XXI to Regulation (EU) 2017/1151 the minimum tyre tread depth is 80 % for the WLTP test, while pursuant to point 4.2 of Appendix 7 to Annex 4a to UN/ECE Regulation No 83, the minimum allowed tyre tread depth for the purpose of the NEDC test is 50 % of the nominal value. That results in an average difference of 2 mm in tread depth between the two procedures. The corresponding effect in terms of the resistance applied to the vehicle shall be determined for the purpose of the NEDC road load calculation in point 2.3.8 in accordance with the following formulae for vehicles H, L and R:
For vehicle H:
TTDH=2×0,1×RMn,H×9,811000
For vehicle L:
TTDL=2×0,1×RMn,L×9,811000
For vehicle R:
TTDR=2×0,1×RMn,R×9,811000
Where,
RMn,H, RMn,L, and RMn,R are the reference masses of vehicles H, L and R determined in accordance with point 2.3.1.

2.3.7. Determination of the inertia of rotating parts
For the purpose of the correlation tool:
During the simulation of the WLTP test four rotating wheels are to be considered, while for the purpose of the NEDC tests only two rotating wheels are to be considered. The effect this has on the forces applied to the vehicle shall be taken into account in accordance with the formulae set out in point 2.3.8.1.1(a)(3).
The acceleration and deceleration forces in the correlation tool shall be calculated for the NEDC simulation by considering the inertia of only two rotating wheels.
For the purpose of a physical test:
During the WLTP coastdown setting, coastdown times are to be transferred to forces and vice versa by taking into account the applicable test mass plus the effect of rotational mass (3 % of the sum of the MRO and 25 kg). For the NEDC coastdown setting, coastdown times are to be transferred to forces and vice versa by neglecting the effect of rotational mass (only NEDC vehicle inertia calculated in point 2.3.1 is used).

2.3.8. Determination of the NEDC road loads

2.3.8.1. In the case of WLTP road loads being determined in accordance with paragraphs 1-4 and 6 of Sub-Annex 4 to Annex XXI to Regulation (EU) 2017/1151
The NEDC road load coefficients shall be calculated in accordance with the formulae specified in point 2.3.8.1.1. (for vehicle H) and in point 2.3.8.1.2. (for vehicle L) and with the following points (a) and (b).
Unless otherwise specified the formulae shall apply both in the case of simulations and in the case of physical vehicle tests.
The type approval authority or, where applicable, the technical service shall verify if the wind-tunnel facility referred to in paragraph 3.2.3.2.2.3. in Sub-Annex 7 to Annex XXI to Regulation (EU) 2017/1151 is qualified to accurately determine the Δ(Cd × Af) values. If the wind-tunnel facility is not qualified, the highest aerodynamic drag value shall apply for all vehicles in the family.
(a) The WLTP road load coefficients and test mass values referred to in the formulae set out in points 2.3.8.1.1. and 2.3.8.1.2. shall be those resulting from vehicle H and L as determined for the interpolation family in accordance with paragraph 5 of Sub-Annex 7 to Annex XXI to Regulation (EU) 2017/1151.
(b) Notwithstanding point (a), where the cycle energy demand of the WLTP vehicle H and/or L does not result in the highest, or respectively, the lowest cycle energy demand for the NEDC vehicle H and/or L, the NEDC road load coefficients shall be determined in accordance with either of the following:
(i) on the basis of the individual vehicle in the interpolation family with the highest, or respectively, the lowest NEDC cycle energy demand;
(ii) on the basis of the combination of the highest, or respectively, the lowest of each of the road load relevant characteristics, i.e. aerodynamic drag, rolling resistance and mass, taken from any individual vehicle in the interpolation family.
The choice of the procedure set out in points (i) or (ii) shall be made by the manufacturer.
Point (b) shall apply for new emissions type approvals granted from 1 January 2019, or from an earlier date at the manufacturer's request.

2.3.8.1.1. Determination of the NEDC road load coefficients for vehicle H
Where this calculation procedure is used for an individual vehicle in accordance with point 4.2.1.4.2., the WLTP road loads and test mass corresponding to the NEDC individual vehicle shall be used with the influence of the optional equipment removed.
(a) The road load coefficient F0,n expressed in Newton (N) for vehicle H shall be determined as follows:
(1) Effect of different inertia:
F10n,H=F0w,H · RMn,HTMw,H
Where the factors in the formula are as defined in point 2.3.1, with the exception of the following:
F0w,H is the road load coefficient F0 determined for the WLTP test of vehicle H; TMw,H is the test mass used for the WLTP test of vehicle H.
(2) Effect of different tyre pressure:
F20n,H=F10n,H · TPH
Where the factors in the formula are as defined in point 2.3.5.
(3) Effect of the inertia of rotating parts:
F30n,H=F20n,H · 1,0151,03
In the case of a physical vehicle test, the following formula applies:
F30n,H=F20n,H · 11,03
(4) Effect of different tyre tread depth:
F40n,H=F30n,H− TTDH
Where the factors in the formula are as defined in point 2.3.6.
(5) Effect of preconditioning:
F0n,H=F40n,H− 6
In the case of a physical vehicle test, the correction for the effect of preconditioning shall not be applied
(b) The road load coefficient F1n for vehicle H shall be determined as follows:
Effect of the inertia of rotating parts
F1n,H=F1w,H · 1,0151,03
In the case of a physical vehicle test, the following formula applies:
F1n,H=F1w,H · 11,03
(c) The road load coefficient F2n for vehicle H shall be determined as follows:
Effect of the inertia of rotating parts
F2n,H=F*2w,H · 1,0151,03
In the case of a physical vehicle test, the following formula applies:
F2n,H=F*2w,H · 11,03
Where the factor
F*2w,H
is the road load coefficient F2 determined for the WLTP test of vehicle H from which the effect of all optional equipment has been removed.
Inserted by Commission Implementing Regulation (EU) 2018/1002 of 16 July 2018 amending Implementing Regulation (EU) 2017/1153 to clarify and simplify the correlation procedure and to adapt it to changes to Regulation (EU) 2017/1151 (Text with EEA relevance).

2.3.8.1.2. Determination of the NEDC road load coefficients for vehicle L
(a) The road load coefficient F0,n for vehicle L shall be determined as follows:
(1) Effect of different inertia:
F10n,L=F0w,L · RMn,LTMw,L
Where the factors in the formula are as defined in point 2.3.1, with the exception of F0w,L which is the road load coefficient F0 determined for the WLTP test of vehicle L, and TMw,L which is the test mass used for the WLTP test of vehicle L.
(2) Effect of different tyre pressure:
F20n,L=F10n,L · TPL
Where the factors in the formula are as defined in point 2.3.5.
(3) Effect of the inertia of rotating parts:
F30n,L=F20n,L · 1,0151,03
In the case of a physical vehicle test, the following formula applies:
F30n,L=F20n,L · 11,03
(4) Effect of different tyre tread depth:
F40n,L=F30n,L− TTDL
Where the factors in the formula are as defined in point 2.3.6.
(5) Effect of preconditioning:
F0n,L=F40n,L− 6
In the case of a physical vehicle test, the correction for the effect of preconditioning shall not be applied.
(b) The road load coefficient F1n for vehicle L shall be determined as follows:
Effect of the inertia of rotating parts
F1n,L=F1w,L · 1,0151,03
In the case of a physical vehicle test, the following formula applies:
F1n,L=F1w,L · 11,03
Where the factor F1w,L is the road load coefficient F1 determined for the WLTP test of vehicle L.
(c) The road load coefficient F2n for vehicle L shall be determined as follows:
Effect of the inertia of rotating parts
F2n,L=F*2w,L · 1,0151,03
In the case of a physical vehicle test, the following formula applies:
F2n,L=F*2w,L · 11,03
Where the factor
F*2w,L
is the road load coefficient F2 determined for the WLTP test of vehicle L from which the effect of all optional equipment has been removed.
2.3.8.2. Determination of the road loads where, for the purpose of the WLTP test, the road loads have been determined in accordance with point 5 of Sub-Annex 4 of Annex XXI to Regulation (EU) 2017/1151.

2.3.8.2.1. Road load matrix family in accordance with point 5.1 of Sub-Annex 4 to Annex XXI to Regulation (EU) 2017/1151.
Where the road load of a vehicle has been calculated in accordance with point 5.1 of Sub-Annex 4 to Annex XXI to Regulation (EU) 2017/1151, the NEDC road load to be used as input for the correlation tool simulations shall be determined as follows:
(a) NEDC tabulated road load values in accordance with Table 3 of Annex 4a to Regulation UN/ECE No 83
Vehicle H:
F0n,H = T0n,H + (F0w,H – Aw,H)
F1n,H = F1w,H – Bw,H
F2n,H = T2n,H + (F2w,H – Cw,H)
Vehicle L:
F0n,L = T0n,L + (F0w,L – Aw,L)
F1n,L = F1w,L – Bw,L
F2n,L = T2n,L + (F2w,L – Cw,L)
Where,

F0n,i, F1n,i, F2n,i, with i = H,L,
are the NEDC road load coefficients for vehicle H or L;

T0n,i, T2n,i, with i = H,L
are the NEDC chassis dynamometer coefficients for vehicles H or L determined in accordance with Table 3 of Annex 4a to UN/ECE Regulation No 83;

AW,H/L, BW,H/L, CW,H/L
are the chassis dynamometer coefficients for the vehicle used for the purpose of the preparation of the chassis dynamometer in accordance with points 7 and 8 of Sub-Annex 4 to Annex XXI to Regulation (EU) 2017/1151;
(b) NEDC road load coefficients where the NEDC tabulated values are not used
In the case of vehicles designed for a technically permissible maximum laden mass equal to or exceeding 3 000 kg, the NEDC road load coefficients may, at the request of the manufacturer, be determined in accordance with point 2.3.8.1.

2.3.8.2.2. Default road loads in accordance with point 5.2 of Sub-Annex 4 to Annex XXI to Regulation (EU) 2017/1151
Where default road loads have been calculated in accordance with point 5.2 of Sub-Annex 4 to Annex XXI to Regulation (EU) 2017/1151, the NEDC road loads shall be calculated in accordance with point 2.3.8.2.1.(a) of this Annex.
In the case of physical vehicle testing, the test shall be performed with the NEDC chassis dynamometer coefficients for vehicles H or L determined in accordance with Table 3 of Annex 4a to UN/ECE Regulation No 83.

2.3.8.3. Extensions of emissions approvals granted pursuant to Regulation (EU) 2017/1151
Where an emission approval pursuant to Regulation (EU) 2017/1151 is extended due to the addition of new vehicles to the CO2 interpolation family with NEDC CO2 emissions higher than those of vehicle H or lower than those of vehicle L, the following shall apply for the purpose of the correlation:
(a) Where the difference between NEDC vehicle H and L of the interpolation family concerned is equal to or higher than 5g CO2/km, the NEDC interpolation line determined for that family can be extended, provided that the NEDC CO2 emissions, determined pursuant to point 3 of this Annex on the basis of input data taken from the WLTP test referred to in point 3.1.1. of Annex I to Regulation (EU) 2017/1151, are equal to or below the CO2 emissions determined on the basis of the NEDC interpolation line;
(b) Where the difference between NEDC vehicle H and L is lower than 5g CO2/km, the interpolation line may not be extended.
In the case (a), the reference CO2 emissions shall be determined without the selection referred to in points 3.1.1.2 and 3.2.6 of this Annex.
In the case (b), or in the case the reference CO2 emissions referred to in point (a) are higher than the existing interpolation line, the NEDC vehicle H and L shall be determined in accordance with points 2 and 3 of this Annex.
Point (a) shall apply with regard to extensions to new types granted from 1 January 2019, or from an earlier date at the manufacturer's request.

2.4. Input data matrix
The manufacturer shall determine the input data for each vehicle H and vehicle L in accordance with point 2.2 and submit the completed matrix set out in Table 1 to the type-approval authority or, where applicable, the technical service appointed to perform the test, with the exception of entries 31, 32 and 33 (the NEDC road loads) which shall be calculated by the type-approval authority or the technical service in accordance with the formulae specified in point 2.3.8. The input data matrix shall be filled in for each WLTP test performed.
The type-approval authority or technical service shall independently verify and confirm the correctness of the input data provided by the manufacturer. In case of doubt, the type-approval authority or technical service shall determine the relevant input data independently of the information provided by the manufacturer or, where appropriate, act in accordance with point 3.2.7 and 3.2.8.

Table 1
Matrix of input data for the correlation tool
No	Input parameters for the correlation tool	Unit	Source	Remarks
1	Fuel type	—	Point 3.2.2.1 of Appendix 3 to Annex I to Regulation (EU) 2017/1151	Diesel/Petrol/LPG/NG or Biomethane/Ethanol(E85)/Biodiesel
2	Fuel lower heating value	kJ/kg	Declaration by manufacturer and/or technical service	
3	Fuel carbon content	%	Idem	% of carbon in the fuel by weight, e.g. 85,5 %
4	Engine type		Point 3.2.1.1 of Appendix 3 to Annex I to Regulation (EU) 2017/1151	Positive ignition or compression ignition
5	Engine capacity	cc	Point 3.2.1.3 of Appendix 3 to Annex I to Regulation (EU) 2017/1151	
6	Engine stroke	mm	Point 3.2.1.2.2 Appendix 3 to Annex I to Regulation (EU) 2017/1151	
7	Rated engine power	kW…min–1	Point 3.2.1.8 of Appendix 3 to Annex I to Regulation (EU) 2017/1151	
8	Engine speed at rated engine power	min–1	Point 3.2.1.8 in Appendix 3 to Annex I to Regulation (EU) 2017/1151	Engine speed at maximum net power
9	High engine idling speed	min–1	Point 3.2.1.6.1 Appendix 3 to Annex I to Regulation (EU) 2017/1151	
10	Maximum net torque	Nm at… min–1	Point 3.2.1.10 Appendix 3 to Annex I to Regulation (EU) 2017/1151	
11	T1 map speed	rpm	Sub-Annex 2 to Annex XXI to Regulation (EU) 2017/1151	Array
12	T1 map torque	Nm	Sub-Annex 2 to Annex XXI to Regulation (EU) 2017/1151	Array
13	T1 map power	kW	Sub-Annex 2 to Annex XXI to Regulation (EU) 2017/1151	Array
14	Engine idle speed	rpm	Sub-Annex 2 to Annex XXI to Regulation (EU) 2017/1151	Idle speed in warm condition
15	Engine idle fuel consumption	g/s	Manufacturer declaration	Idle fuel consumption in warm condition
16	Final drive ratios	—	Point 4.6 in Appendix 3 to Annex I to Regulation (EU) 2017/1151	Final drive ratio
17	Tyre code	—	Point 6 of Appendix 3 to Annex I to Regulation (EU) 2017/1151	Tyre code (e.g. P195/55R1685H) of the tyres used in the WLTP test
18	Gearbox type	—	Point 4.5 of Appendix 3 to Annex I to Regulation (EU) 2017/1151	automatic/manual/CVT
19	Torque converter	—	Manufacturer declaration	0 = No, 1 = Yes; Does the vehicle use torque converter?
20	Fuel saving gear for automatic transmission	—	Manufacturer declaration	0 = No, 1 = Yes Setting this value to 1 will allow the correlation tool to use a higher gear at constant speed driving than in the case of transient conditions
21	Drive mode	—	Point 2.3.1 of Sub-Annex 5 to Annex XXI to Regulation (EU) 2017/1151	Two-wheel drive, four-wheel drive.
22	Start-stop activation time	sec	Manufacturer declaration	Start-stop activation time elapsed from test start
23	Nominal voltage of the alternator	V	Point 3.4.4.5 of Appendix 3 to Annex I to Regulation (EU) 2017/1151	
24	Service battery capacity	Ah	Point 3.4.4.5 of Appendix 3 to Annex I to Regulation (EU) 2017/1151	
25	Starting ambient temperature WLTP	°C		Default value = 23 °C WLTP test measurement
26	Alternator maximum power	kW	Manufacturer declaration	
27	Efficiency of the alternator	—	Manufacturer declaration	Default value = 0,67
28	Gearbox ratios	—	Point 4.6 of Appendix 3 to Annex I to Regulation (EU) 2017/1151	Array: ratio gear 1, ratio gear 2, etc.
29	Ratio of vehicle speed to engine speed	(km/h)/rpm	Manufacturer declaration	Array: [constant velocity speed ratio gear 1, constant velocity speed ratio gear 2, ...]; Alternative to gear box ratios
30	Vehicle inertia NEDC	kg	Table 3 of Annex 4a to UN/ECE Regulation No 83. To be completed by the type approval authority or Technical Service	To be derived in accordance with point 2.3.1 of this Annex.
31	F0 NEDC	N	Point 2.3.8 of this Annex, To be completed by the type-approval authority or Technical Service	F0 road load coefficient
32	F1 NEDC	N/(km/h)	Idem	F1 road load coefficient
33	F2 NEDC	N/(km/h)2	Idem	F2 road load coefficient
34	Inertia setting WLTP	kg	Point 2.5.3 of sub-Annex 4 to Annex XXI to Regulation (EU) 2017/1151	Chassis dynamometer inertia applied during WLTP test
35	F0 WLTP	N	Point 2.4.8 of the Appendix to the information document in Appendix 3 to Annex I to Regulation (EU) 2017/1151	F0 road load coefficient
36	F1 WLTP	N/(km/h)	Idem	F1 road load coefficient
37	F2 WLTP	N/(km/h)2	Idem	F2 road load coefficient
38	WLTP CO2 value phase 1 (Charge-Sustaining value in case of NOVC and OVC-HEVs)	gCO2/km	Entry 2.1.1.2.1. of Appendix 8a to Annex I of (EU) 2017/1151	Uncorrected measured value MCO2,p,1 of phase Low
39	WLTP CO2 value phase 2 (Charge-Sustaining value in case of NOVC and OVC-HEVs)	gCO2/km	Idem	Uncorrected measured value MCO2,p,1 of phase Medium
40	WLTP CO2 value phase 3 (Charge-Sustaining value in case of NOVC and OVC-HEVs)	gCO2/km	Idem	Uncorrected measured value MCO2,p,1 of phase High
41	WLTP CO2 value phase 4 (Charge-Sustaining value in case of NOVC and OVC-HEVs)	gCO2/km	Idem	Uncorrected measured value MCO2,p,1 of phase Extra-High
42	Turbo- or Supercharger	—	Manufacturer declaration	0 = No | 1 = Yes — Is the engine equipped with any kind of charging system?
43	Start-stop	—	Manufacturer declaration	0 = No | 1 = Yes — Does the vehicle have start-stop system?
44	Brake energy Recuperation	—	Manufacturer declaration	0 = No | 1 = Yes — Does the vehicle have energy recuperation technologies?
45	Variable valve actuation	—	Manufacturer declaration	0 = No | 1 = Yes — Does the engine feature variable valve actuation?
46	Thermal management	—	Manufacturer declaration	0 = No | 1 = Yes — Does the vehicle have technologies that actively manage temperature at the gear box?
47	Direct injection/Port Fuel Injection	—	Manufacturer declaration	0 = PFI | 1 = DI
48	Lean burn	—	Manufacturer declaration	0 = No | 1 = Yes — Does the engine use lean burn?
49	Cylinder deactivation	—	Manufacturer declaration	0 = No | 1 = Yes — Does the engine use a cylinder deactivation system?
50	Exhaust gas recirculation	—	Manufacturer declaration	0 = No | 1 = Yes — Does the vehicle have an external EGR system?
51	Particulate filter	—	Manufacturer declaration	0 = No | 1 = Yes — Does the vehicle have a particulate filter?
52	Selective Catalytic Reduction	—	Manufacturer declaration	0 = No | 1 = Yes — Does the vehicle have an SCR system?
53	NOx storage catalyst	—	Manufacturer declaration	0 = No | 1 = Yes — Does the vehicle have a NOx storage catalyst?
54	WLTP Time	sec	WLTP test measurement (identified in accordance to Point 2.2 of this Annex)	Array: OBD and Chassis Dynamometer data, 1hz
55	WLTP Velocity (theoretical)	km/h	As defined in sub-Annex 1 to Annex XXI to Regulation (EU) 2017/1151	Array: 1hz, resolution 0,1 km/h. If not provided the speed profile defined in Point 6 of sub-Annex 1 to Annex XXI to Regulation (EU) 2017/1151 and in particular to Tables A1/7-A1/9, A1/11, and A1/12 applies
56	WLTP Velocity (actual)	km/h	WLTP test measurement (identified in accordance to Point 2.2 of this Annex)	Array: OBD and chassis dynamometer data, 1Hz for OBD and 10Hz for the chassis dynamometer, resolution 0.1 km/h
57	WLTP Gear (theoretical)	—	As defined in sub-Annex 2 to Annex XXI to Regulation (EU) 2017/1151	Array: 1Hz. Theoretical calculated gear shift to be provided for vehicle H and L (if applicable)
58	WLTP Engine Speed	rpm	WLTP test measurement (identified in accordance to Point 2.2 of this Annex)	Array: 1hz, 10 RPM resolution from OBD
59	WLTP Engine Coolant Temperature	°C	Idem	Array: OBD Data, 1hz, 1 °C resolution
60	WLTP Alternator (DC/DC converter – low voltage side — in case of NOVC and OVC-HEVs) Current	A	As defined, for the low-voltage battery current, in Appendix 2 to Sub-Annex 6 to Annex XXI to Regulation (EU) 2017/1151	Array: 1hz, 0,1 A resolution, external measurement device synchronised with the chassis dynamometer
61	Service battery current	A	As defined in Appendix 2 to Sub-Annex 6 to Annex XXI to Regulation (EU) 2017/1151	Array: 1Hz (sampling frequency of the instrument 20Hz), 0.1 A resolution, external measurement device synchronised with the chassis dynamometer
62	WLTP calculated load	—	As defined in Annex 11 of UN/ECE Regulation No 83	Array: OBD data, 1hz at least (higher frequencies possible, 1 % resolution) WLTP test measurement
63	Declared combined NEDC CO2 emissions for vehicle H and L	gCO2/km		Declared value for NEDC test. In case of vehicles with periodically regenerative systems the value shall be Ki corrected
64	NEDC velocity (theoretical)	km/h	As defined in point 6 of Annex 4 to Un/ECE Regulation No 83	Array: 1 hz, resolution 0,1 km/h. If not provided the speed profile defined in point 6 of Annex 4 to UN/ECE Regulation No 83 shall apply
65	NEDC gear (theoretical)	—	Idem	Array: 1 hz. If not provided the speed profile defined in point 6 of Annex 4 to UN/ECE Regulation No 83 shall apply
66	Interpolation family identification number	—	Point 5.0 of Annex XXI to Regulation (EU) 2017/1151	
67	Ki Regenerative Factor multiplicative/additive for vehicle H and L	—	Appendix 1 to Sub-Annex 6 to Annex XXI to Regulation (EU) 2017/1151	For vehicles without periodically regenerating systems this value is equal to 1.
68	Number of cylinders	—	Manufacturer declaration	Number (To be provided at the latest from 1 January 2019)
69	Fuel heating value	kWh/l	Appendix 2 to Sub-Annex 6 to Annex XXI to Regulation (EU) 2017/1151	Value according to the Table A6.App2/1 in Regulation (EU) 2017/1151
70	Fuel consumption of WLTP test for vehicle H and L	l/100km	Paragraph 6 of Sub-Annex 7 to Annex XXI to Regulation (EU) 2017/1151	Non-balanced fuel consumption of Type 1 test
71	Nominal REESS voltage	V	According to DIN EN 60050-482	For low voltage battery as described in Appendix 2 to Sub-Annex 6 to Annex XXI to Regulation (EU) 2017/1151
72	ATCT family correction factor	—	Sub-Annex 6a to Annex XXI to Regulation (EU) 2017/1151	ATCT Family correction factor (14 °C correction)
73	Speed and distance correction of WLTP test	—	Regulation (EU) 2017/1151	Correction performed? 0 = No | 1 = Yes
74	RCB correction of WLTP test	—	Appendix 2 to Sub-Annex 6 to Annex XXI to Regulation (EU) 2017/1151	Correction performed? 0 = No | 1 = Yes
76	WLTP CO2 declared value for vehicle H and/or L	g/km	Manufacturer declaration	Declared value for WLTP vehicle H and L. Value to include all corrections (if applicable)
77	WLTP CO2 measured corrected (Charge-Sustaining value in case of NOVC and OVC-HEVs) for vehicle H and/or L	g/km	Entry 2.1.1.2.1 of Appendix 8a to Annex I of (EU) 2017/1151	Combined measured CO2 emissions for vehicle H and L after all applicable corrections, MCO2,C,5. In case of 2 and 3 WLTP tests all measured results shall be provided (except for NOVC and OVC-HEVs where only final type-approval value shall be provided).
78	WLTP re-test	—	Point 2.2b.(b) of Annex I	Indicate which test conditions as referred to in point 2.2a.(a) to (d) of Annex I have been subject to re-testing
79	WLTP Charge-depleting CO2 results (combined)	gCO2/km	2.5.3.2 of Appendix 4 to Annex I to Regulation (EU) 2017/1151	Combined charge depleting CO2 mass emissions MCO2,CD (average values in case of 2 and 3 tests) for the Type I test as calculated according to paragraph 4.1.2 of Sub-Annex 8 to Annex XXI to Regulation (EU) 2017/1151(OVC-HEV only)
80	WLTP utility factor-weighted combined CO2 emission (measured)	gCO2/km	Calculated according to paragraph 4.1.3.1 of Sub-Annex 8 to Annex XXI to Regulation (EU) 2017/1151	Calculated weighted combined results (measured) as described in Article 7a(1)(c) of this Regulation (OVC-HEV only)
81	WLTP utility factor-weighted combined CO2 emission (declared)	gCO2/km	Entry 2.5.3.3 of the EC type-approval certificate	Calculated weighted combined results (declared) taken from entry 2.5.3.3 of the EC type-approval certificate (OVC-HEV only)
82	WLTP Equivalent all electric range (EAER) combined	km	Entry 2.5.3.7.2 (EAER) of the EC type-approval certificate	Combined Equivalent all Electric Range (EAER) (OVC-HEV only)
83	Index number of the transition cycle	—	Entry 2.1.1.4.1.4 of Appendix 8a to Annex I to Regulation (EU) 2017/1151	for OVC-HEV indicate the index number of the transition cycle
84	Relative electric energy change REECi of each charge-depleting test	—	Calculated according to paragraph 3.2.4.5.2 of Sub-Annex 8 to Annex XXI to Regulation (EU) 2017/1151	Indicate REECi of each CD test
85	NEDC Charge- Sustaining CO2 emission (declared, Condition B)	gCO2/km	Information document (Appendix 3 of Annex I to Regulation (EU) 2017/1151) (for NOVC-HEV entry 3.5.7.2.1; for OVC-HEV entry 3.5.7.2.2)	OEM declaration for NOVC-HEV: Declared combined NEDC CO2 value; For OVC-HEV: Declared combined charge sustaining CO2 mass emission (NEDC condition B).
86	NEDC Charge- Depleting CO2 emission (declared, Condition A)	gCO2/km	Information document, (entry 3.5.7.2.3 of Appendix 3 of Annex I to Regulation (EU) 2017/1151)	Combined CD CO2 emission, OEM declaration (only OVC-HEV)
87	NEDC weighted-combined CO2 emission (declared)	gCO2/km	OEM declaration	OEM declaration (only OVC-HEV)
88	NEDC electric range for OVC-HEV (declared)	km	OEM declaration	OEM declaration (only OVC-HEV)
89	KCO2 factor for charge sustaining mode correction	(g/km)/(Wh/km)	paragraph 2.3.2 of Appendix 2 of Sub-Annex 8 to Annex XXI to Regulation (EU) 2017/1151	RCB CO2 mass emission correction coefficient for NOVC and OVC-HEV
90	Hybrid Vehicle Configuration (P0, P1, P2, P2 planetary, P3, or P4)	—		Does the vehicle have an electric machine used for vehicle propulsion and electric energy generation in P0, P1, P2, P2 planetary, P3, or P4 position, or a combination thereof? OEM declaration
91	Maximum power output of each electric machine (P0, P1, P2, P2 planetary, P3, or P4)	kW	Point 3.3.1.1.1 of Appendix 3 of Annex I to Regulation (EU) 2017/1151	OEM declaration
92	Maximum torque output of each electric machine (P0, P1, P2, P2 planetary, P3, or P4)	Nm		OEM declaration
93	For each electric machine, the ratio between the electric machine rotational speed and the reference rotational speed (P0, P1, P2, P2 planetary, P3, or P4)	—		OEM declaration
94	Traction REESS capacity	Ah	Point 3.3.2.3 of Appendix 3 of Annex I to Regulation (EU) 2017/1151	OEM declaration
95	Traction REESS current	A	Appendix 3 of Sub-Annex 8 to Annex XXI to Regulation (EU) 2017/1151	20Hz time-series values used for the test(s) resampled to 1Hz
96	Traction REESS technology type	—	Point 1.1.10 of Appendix 8a of Annex I to Regulation (EU) 2017/1151	OEM declaration
97	Traction REESS initial state of charge	%		OEM declaration
98	Number of REESS cells		Point 3.3.2.1 of Appendix 3 of Annex I to Regulation (EU) 2017/1151	OEM declaration
99	Traction REESS voltage nominal/time-series	V	Appendix 3 of Sub-Annex 8 to Annex XXI to Regulation (EU) 2017/1151	Nominal or time-series values used for the test (20Hz minimum)
100	Engine-idle coasting function	—	Y/N	Does the vehicle have the engine idle coasting function (allow the engine to idle during vehicle coasting in order to save fuel)?
101	Engine-off coasting function	—	Y/N	Does the vehicle have the engine-off coasting function (allow the engine to switch off during vehicle coasting in order to save fuel)?
Either normal engine idling speed, high engine idling speed and maximum net torque or T1 maps speed torque and power are necessary (for gearshift)				
Either tyre dimensions or velocity speed ratio is necessary (for gearshift)				
P0: the electric machine is connected to the engine transmission belt therefore has the engine speed as reference speed; P1: the electric machine is connected to the engine crankshaft therefore has the engine speed as reference speed; P2: the electric machine is mounted right upstream the transmission (gearbox or continuously variable transmission), therefore has the transmission input speed as reference speed; P2 planetary: the electric machine is connected to the gear of a planetary gearset that is not connected to the internal combustion engine or the final drive sides, here referred to as the planetary side. In this case the speed ratio to be specified is the ratio between the electric machine and planetary side rotational speed (reference speed) reflecting the speed multiplication/reduction effect of a reduction gear P3: the electric machine is right upstream the final drive of a driven axle therefore has the final drive input rotational speed as reference speed (this includes electric machines mounted on the gear of a planetary gearset on the final drive side). A vehicle can have up to two P3 machines (one for the front (P3a) and one for the rear (P3b) axle; P4: the electric machine is downstream the final drive, therefore has the wheel speed as reference speed. A vehicle can have up to four P4 motors (one for each wheel, where P4a indicates front wheels and P4b rear wheels). Further specifications of these inputs are to be provided in the input template for the correlation tool.				
Substituted by Commission Implementing Regulation (EU) 2018/2043 of 18 December 2018 amending Implementing Regulation (EU) 2017/1153 to clarify the WLTP test conditions and provide for the monitoring of type approval data (Text with EEA relevance).
Deleted by Commission Implementing Regulation (EU) 2019/1840 of 31 October 2019 amending Implementing Regulation (EU) 2017/1153 as regards the reporting of WLTP CO2 values for certain categories of new passenger cars and adjusting the input data for the correlation tool (Text with EEA relevance).
Inserted by Commission Implementing Regulation (EU) 2019/1840 of 31 October 2019 amending Implementing Regulation (EU) 2017/1153 as regards the reporting of WLTP CO2 values for certain categories of new passenger cars and adjusting the input data for the correlation tool (Text with EEA relevance).

3. DETERMINATION OF NEDC CO2 EMISSION AND FUEL CONSUMPTION VALUES FOR VEHICLE H AND L

3.1. Determination of NEDC CO2 reference values, phase-specific values and fuel consumption values for vehicle H and L
The type-approval authority shall ensure that the NEDC CO2 reference value for the respective vehicle H and, where applicable, vehicle L of a WLTP interpolation family as well as the phase-specific values and the fuel consumption is determined in accordance with points 3.1.2 and 3.1.3.
Where the difference between vehicle H and vehicle L is due only to a difference in optional equipment (i.e. MRO, bodyshape and road load coefficients are the same) the NEDC CO2 reference value shall be determined for vehicle H only.

3.1.1. Correlation tool input and output

3.1.1.1. Original correlation output report
The type approval authority or designated technical service shall ensure that the input data file for the correlation tool is complete. Following a completed test run on the correlation tool, an original correlation output report shall be issued and attributed with a hash code. The report shall include the following sub-files:
(a) . . . . .
Deleted by Commission Implementing Regulation (EU) 2018/2043 of 18 December 2018 amending Implementing Regulation (EU) 2017/1153 to clarify the WLTP test conditions and provide for the monitoring of type approval data (Text with EEA relevance).
(b) the output data resulting from the execution of the simulation;
(c) the summary file, including
(i) the interpolation family identification number;
(ii) the delta between the manufacturer declared CO2 value and the value resulting from the correlation tool (CO2 combined);
(iii) the input data as specified in point 2.4.
The summary file referred to in point (c) shall be encrypted to ensure confidentiality.

3.1.1.2. Complete correlation file
Where the original correlation output report has been issued in accordance with point 3.1.1.1., the type approval authority, or where applicable the designated technical service shall upload the summary file referred to in point 3.1.1.1.(c) to a Commission server from which a reply is returned to the sender (with the relevant services of the Commission in copy), including a randomly generated integer number between 0 and 99, a hash code of the summary file unequivocally linking that number to the original output report digitally signed by the Commission server.
A complete correlation file shall be created by the type approval authority, or where applicable the designated technical service, which shall include the original correlation output report referred to in point 3.1.1.1. and the reply from the Commission server. The file shall be maintained by the type approval authority as a test report in accordance with Annex VIII of Directive 2007/46/EC.

3.1.2. NEDC CO2 reference value for vehicle H
The correlation tool shall be used to execute the simulated NEDC test of vehicle H using the relevant input data referred to in point 2.4.
The NEDC CO2 reference value for vehicle H shall be determined as follows:
CO2,H = NEDC CO2,C,H · Ki,H
Where,

CO2,H
is the NEDC CO2 reference value for vehicle H;

NEDC CO2,C,H
is the correlation tool simulated combined NEDC CO2 result for vehicle H;

Ki,H
is the value determined in accordance with appendix 1 to Sub-Annex 6 to Annex XXI to Regulation (EU) 2017/1151 for vehicle H.
In addition to the NEDC CO2 reference value, the correlation tool shall also provide the phase-specific CO2 values for vehicle H.

3.1.3. NEDC CO2 reference value for vehicle L
Where applicable, the simulated NEDC test of vehicle L shall be performed using the correlation tool and the relevant input data referred to in point 2.4.
The NEDC CO2 reference value for vehicle L shall be determined as follows:
CO2,L = NEDC CO2,C,L · Ki,L
Where,

CO2,L
is the NEDC CO2 reference value for vehicle L;

NEDC CO2,C,L
is the correlation tool simulated combined NEDC CO2 result for vehicle L;

Ki,L
is the value determined in accordance with appendix 1 to Sub-Annex 6 to Annex XXI to Regulation (EU) 2017/1151 for vehicle L.
In addition to the NEDC CO2 reference value, the correlation tool shall also provide the phase-specific CO2 values for vehicle L.

3.2. Interpretation of the NEDC CO2 reference values determined for vehicle H and L
For each WLTP interpolation family, the manufacturer shall declare the NEDC CO2 mass emissions combined value for vehicle H, and, where applicable, vehicle L, to the approval authority. The type-approval authority shall ensure that the NEDC CO2 reference values for vehicle H and, where applicable, vehicle L are determined in accordance with point 3.1.2 and 3.1.3, and that the reference values for the respective vehicle is interpreted in accordance with points 3.2.1 to 3.2.5.
3.2.1. The NEDC CO2 value for test vehicle H or L to be used for the purpose of the calculations set out in point 4 shall be the manufacturer-declared value, if the NEDC CO2 reference value does not exceed that value by more than 4 per cent. The reference value may be lower without any limitation.
3.2.2. If the NEDC CO2 reference value exceeds the manufacturer-declared value by more than 4 per cent, the reference value may be used for the purpose of the calculations set out in point 4 for test vehicle H or L, or the manufacturer may request that a physical measurement is performed under the responsibility of the type-approval authority in accordance with the procedure referred to in Annex XII to Regulation (EC) No 692/2008, taking into account the precisions specified in point 2 of this Annex.
3.2.3. If the physical measurement referred to in point 3.2.2, amplified by the Ki-factor, does not exceed the manufacturer-declared value by more than 4 per cent, the declared value shall be used for the purpose of the calculations set out in point 4.
3.2.4. If the physical measurement, amplified by the Ki-factor, exceeds the manufacturer-declared value by more than 4 per cent, another physical measurement of the same vehicle shall be performed and the results shall be amplified by the Ki-factor. If the average of those two measurements does not exceed the declared value by more than 4 per cent, the declared value shall be used for the purpose of the calculations set out in point 4.
3.2.5. If the average of the two measurements referred to in point 3.2.4 exceeds the manufacturer-declared value by more than 4 per cent, a third measurement shall be performed and the results shall be amplified by the Ki-factor. The average of the three measurements shall be used for the purpose of the calculations set out in point 4.
3.2.6. Where the randomly generated number referred to in point 3.1.1.2 is in the range of 90 to 99 the vehicle shall be selected for one physical measurement in accordance with the procedure referred to in Annex XII to Regulation (EC) No 692/2008, taking into account the precisions set out in section 2 of this Annex. The test results shall be documented in accordance with Annex VIII to Directive 2007/46/EC.
Where the NEDC CO2 value for both vehicles H and L is determined in accordance with point 3.2.1, the vehicle configuration selected for physical measurement shall be vehicle L, if the random number is in the range 90 to 94, and vehicle H, if the random number is in the range 95 to 99.
Where the NEDC CO2 value is determined in accordance with point 3.2.1 for only one of the vehicles H or L in the interpolation family, that vehicle shall be selected for one physical measurement if the random number is in the range 90 to 99.
Where the NEDC CO2 values are not determined in accordance with point 3.2.1, but both vehicle H and L are physically tested, the random number shall be disregarded.
3.2.7. Notwithstanding point 3.2.6, a type-approval authority shall, where applicable, based on a proposal by a technical service, in those cases where the NEDC CO2 value is determined in accordance with point 3.2.1, request that a vehicle undergoes one physical measurement where, based on their independent expertise, there are justified reasons to consider that the declared NEDC CO2 value is too low in relation to a measured NEDC CO2 value. The test results shall be documented in accordance with Annex VIII to Directive 2007/46/EC.
3.2.8. Where a physical test is performed in accordance with point 3.2.6 or point 3.2.7, the type-approval authority shall for each WLTP interpolation family record the relative deviation (De) between the measured value and the manufacturer-declared value determined as follows:
De=RTr− DVDV
Where:

RTr
is the random test result, amplified by the Ki-factor;

DV
is the manufacturer-declared value.
The De factor shall be calculated with three decimals and shall be recorded in the type approval certificate and in the certificate of conformity.
Where the type-approval authority finds that the physical test results do not confirm the input data provided by the manufacturer and, in particular, the data referred to in points 20, 22 and 44 of Table 1 in point 2.4, a verification factor shall be set to 1 and be recorded in the type-approval certificate and in the certificate of conformity. Where the input data is confirmed or where the error in the input data is not to the benefit of the manufacturer the verification factor shall be set to 0.

3.3. Calculation of the NEDC phase-specific CO2 values and fuel consumption values for vehicle H and L
The type-approval authority or, where applicable, the technical service shall determine the NEDC phase-specific values and the fuel consumption values for vehicle H and L in accordance with points 3.3.1 to 3.3.4.

3.3.1. Calculation of the NEDC phase-specific CO2 values for vehicle H
The NEDC phase-specific values for vehicle H shall be calculated as follows:
NEDC CO2,p,H = NEDC CO2,p,H,c · CO2,AF,H
Where:

p
is the NEDC phase ‘UDC’ or ‘EUDC’;

NEDC CO2,p,H,c
is the correlation tool simulated NEDC CO2 value for the phase p referred to in point 3.1.2 or, where applicable, the physical measurement result as referred to in point 3.2.2;

NEDC CO2,p,H
is the NEDC phase-specific value for vehicle H of the applicable phase p, gCO2/km;

CO2,AF,H
is the adjustment factor for vehicle H calculated by the ratio between the NEDC CO2 value determined in accordance with point 3.2 and the correlation tool simulated NEDC test result referred to in point 3.1.2 or, where applicable, the physical measurement result.

3.3.2. Calculation of the NEDC phase-specific CO2 values for vehicle L
The NEDC phase-specific values for vehicle L shall be calculated as follows:
NEDC CO2,p,L = NEDC CO2,p,L,c · CO2,AF,L
Where:

p
is the NEDC phase ‘UDC’ or ‘EUDC’;

NEDC CO2,p,L,c
is the correlation tool simulated NEDC CO2 value for the phase p referred to in point 3.1.2 or, where applicable, the physical measurement result as referred to in point 3.2.2;

NEDC CO2,p,L
is the NEDC phase-specific value for vehicle L of the applicable phase p, gCO2/km;

CO2,AF,L
is the adjustment factor for vehicle L calculated by the ratio between the NEDC CO2 value determined in accordance with point 3.2 and the correlation tool simulated NEDC test result referred to in point 3.1.2 or, where applicable, the physical measurement result.

3.3.3. Calculation of the NEDC fuel consumption for vehicle H and L

3.3.3.1. Calculation of the NEDC fuel consumption (combined)
The NEDC fuel consumption (combined) for vehicles H and L shall be calculated using the combined NEDC CO2 emissions determined in accordance with point 3.2 and the provisions set out in Annex XII to Regulation (EC) No 692/2008. The emissions of other pollutants relevant to the fuel consumption calculation (hydrocarbons, carbon monoxide) shall be considered equal to 0 (zero) g/km.

3.3.3.2. Calculation of the NEDC phase-specific fuel consumption
The NEDC phase-specific fuel consumption for vehicles H and L shall be calculated using the phase-specific NEDC CO2 emissions determined in accordance with point 3.3 and the provisions set out in Annex XII to Regulation (EC) No 692/2008. The emissions of other pollutants relevant to the fuel consumption calculation (hydrocarbons, carbon monoxide) shall be considered equal to 0 (zero) g/km.

3.3.4. Calculation of the NEDC fuel consumption for vehicle L

3.3.4.1. Calculation of the NEDC fuel consumption (combined) for vehicle L
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3.4.2. Calculation of the NEDC phase-specific fuel consumption for vehicle L
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deleted by Commission Implementing Regulation (EU) 2018/1002 of 16 July 2018 amending Implementing Regulation (EU) 2017/1153 to clarify and simplify the correlation procedure and to adapt it to changes to Regulation (EU) 2017/1151 (Text with EEA relevance).

4. CALCULATION OF THE NEDC CO2 VALUES AND FUEL CONSUMPTION VALUES TO BE ATTRIBUTED TO INDIVIDUAL M1 VEHICLES
The manufacturer shall calculate the (phase-specific and combined) NEDC CO2 values and the fuel consumption values to be attributed to individual passenger cars in accordance with points 4.1 and 4.2 and record those values in the certificates of conformity.
The provisions on rounding set out in point 1.3 of Sub-Annex 7 to Annex XXI to Regulation (EU) 2017/1151 shall apply.

4.1. Determination of the NEDC CO2 values in the case of a WLTP interpolation family based on vehicle H
Where the CO2 emissions of the WLTP interpolation family are determined by reference to vehicle H only in accordance with point 1.2.3.1 of Sub-Annex 6 to Annex XXI to Regulation (EU) 2017/1151, the NEDC CO2 value to be recorded in the certificates of conformity of the vehicles belonging to that family shall be the NEDC CO2 emissions determined in accordance with point 3.2 of this Annex and recorded in the type-approval certificate of the vehicle H in question.

4.2. Determination of the NEDC CO2 value in the case of a WLTP interpolation family based on vehicle L and vehicle H

4.2.1. Road load calculation of an individual vehicle

4.2.1.1. Mass of the relevant vehicle
The NEDC reference mass of the individual vehicle (RMn,ind) shall be determined as follows:
RMn,ind=MROind− 75+ 100 [kg]
Where: MROind is the mass in running order as defined in Article 3(d) of Regulation (EC) No 443/2009 of the individual vehicle.
The mass to be used for the calculation of the NEDC CO2 values of the individual vehicle shall be the inertia value set out in Table 3 of Annex 4a to UN/ECE Regulation No 83 which is equivalent to the reference mass determined in accordance with this point and referred to as. TMn,ind.

4.2.1.2. Rolling resistance of the individual vehicle
The tyre rolling resistance values determined in accordance with point 3.2.3.2.2.2 of sub-Annex 7 to Annex XXI to Regulation (EU) 2017/1151 shall be used for the purpose of the interpolation of the NEDC CO2 value of the individual vehicle.

4.2.1.3. Aerodynamic drag of an individual vehicle
The aerodynamic drag of the individual vehicle shall be calculated by considering the difference in aerodynamic drag between an individual vehicle and vehicle L, due to a difference in body shape (m2):
ΔCd · Afind− L,n
Where:

Cd
is the aerodynamic drag coefficient;

Af
is the frontal area of the vehicle, m2.
The type-approval authority or, where applicable, the technical service shall verify if the wind tunnel facility referred to in 3.2.3.2.2.3. in Sub-Annex 7 to Annex XXI to Regulation (EU) 2017/1151 is qualified to accurately determine the Δ(Cd ×Af) for body shapes that differ between vehicle L and H. If the wind tunnel facility is not qualified, the
Δ Cd · AfH− L,n
for vehicle H shall apply for the individual vehicle.
If vehicles L and H have the same body shape, the value of
Δ Cd · Afind− L,n
for the interpolation method shall be set to zero.

4.2.1.4. Calculation of the road load for an individual vehicle in a WLTP interpolation family

4.2.1.4.1. Road load coefficients derived from NEDC vehicle H and L
The road load coefficients F0,n, F1,n and F2,n for vehicles H and L determined in accordance with point 2.3.8. are referred to as F0n,H, F1n,H and F2n,H and F0n,L, F1n,L and F2n,L respectively.
The road load coefficients f0n,ind, f1n,ind and f2n,ind for an individual vehicle shall be calculated in accordance with the following formula:

Formula 1(a)
f0n,ind=F0n,H−ΔF0n×TMn,H×RRn,H−TMn,ind×RRn,indTMn,H×RRn,H−TMn,L×RRn,L
For new emission type approvals granted from 1 January 2019, or prior to that date, on the manufacturer's request, the road load coefficients shall be calculated in accordance with the following formula:

Formula 1(b)
f0n,ind=F0n,H−ΔF0n×RMn,H×RRn,H−RMn,ind×RRn,indRMn,H×RRn,H−RMn,L×RRn,L
Or, if (TMn,H · RRn,H – TMn,L · RRn,L) = 0, or, where applicable, (RMn,H · RRn,H – RMn,L · RRn,L) = 0, Formula 2 shall apply:

Formula 2
f0n,ind = F0n,H – ΔF0n
f1n,ind = F1n,H
f2n,ind=F2n,H−ΔF2n×ΔCd×AfLH,n−ΔCd×Afind,nΔCd×AfLH,n
or, if Δ[Cd × Af]LH,n = 0, Formula 3 shall apply:

Formula 3
f2n,ind = F2n,H – ΔF2n
where:
ΔF0,n = F0n,H– F0n,L
ΔF2,n = F2n,H– F2n,L

4.2.1.4.2. Road load coefficients derived from WLTP road load coefficients of individual vehicles
From 1 January 2019 for new type approvals and from 1 January 2020 for all new vehicles entering into service, or prior to those dates at the request of the manufacturer, the NEDC road loads for an individual vehicle shall be derived from the WLTP road load coefficients of that vehicle in any of the following cases:
(a) if the CO2 emission value, the cycle energy demand, or any of the road load coefficients f0, f1 or f2 calculated in accordance with point 4.2.1.4.1., is to be extrapolated from NEDC vehicle H or L;
(b) if the road load coefficients for NEDC vehicle H and L are derived from different road load families;
(c) if the individual vehicle belongs to a road load family different to the road load family of NEDC vehicle H and/or L;
(d) if the individual vehicle belongs to a road load matrix family.
The NEDC road load coefficients shall, in the cases (a) to (d), be calculated using the formulae set out in point 2.3.8.1.1., where references to vehicle H shall be considered as references to the individual vehicle. In the case of point (d), where the road load coefficients for the road load matrix family have been determined in accordance with point 2.3.8.2.1(a), the road load coefficients for the individual vehicle may be determined in accordance with the formulae set out in the second paragraph of point 4.2.1.5.
In the case (a), CO2 extrapolation may only be performed, if the difference between the NEDC vehicle H and L is equal to or higher than 5g CO2/km. The interpolation line may in that case be extrapolated by a maximum of 3g CO2/km above the CO2 emissions of vehicle H, or below the CO2 emissions of vehicle L. If the extrapolation exceeds 3g CO2/km, or the difference between NEDC vehicle H and L is less than 5g CO2/km, the manufacturer shall determine a new interpolation line for that interpolation family in accordance with point 2 and 3 of this Annex.

4.2.1.4a. NEDC road loads derived from the representative vehicle of a road load matrix family
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(a) The F0n,ind for the individual vehicle shall be determined as follows:
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(b) The F2n,ind for the individual vehicle shall be determined as follows:
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(c) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2.1.5. Calculation of cycle energy demand
The cycle energy demand of the applicable NEDC Ek,nand the energy demand for all applicable cycle phases Ek,p,n applicable for individual vehicles in the WLTP interpolation family shall be calculated according to the procedure in paragraph 5 of Sub-Annex 7 to Annex XXI to Regulation (EU) 2017/1151, for the following sets k of road load coefficients and masses:

k = 1
F0= F0n,L, F1=F1n,H, F2= F2n,L, m= TMn,L
(test vehicle L)

k = 2
F0= F0n,H, F1= F1n,H, F2= F2n,H, m= TMn,H
(test vehicle H)

k = 3
F0= f0n,ind, F1= F1n,H, F2= f2n,ind, m= TMn,ind
(an individual vehicle in the WLTP interpolation family)
In case the chassis dynamometer coefficients specified in Table 3 of Annex 4a of UN/ECE Regulation No 83 are applied, the following formulae shall be used:
f0n,ind=F0n,H− ΔF0n ·TMn,H− TMn,indTMn,H− TMn,L
f1n,ind=F1n,H− ΔF1n ·TMn,H− TMn,indTMn,H− TMn,L
f2n,ind=F2n,H− ΔF2n ·TMn,H− TMn,indTMn,H− TMn,L

4.2.1.6. Calculation of the NEDC CO2 value for an individual vehicle by the CO2 interpolation method
For each cycle phase p of the NEDC applicable for individual vehicles in the WLTP interpolation family, the contribution to the total mass of CO2 for an individual vehicle shall be calculated as follows:
MCO2− ind,p,n=MCO2− L,p,n+E3,p,n− E1,p,nE2,p,n− E1,p,n · MCO2− H,p,n− MCO2− L,p,n
The mass of CO2 emissions, g/km, attributed to an individual vehicle of the WLTP interpolation family
MCO2− ind,n
shall be calculated as follows:
MCO2− ind,n=MCO2− L,n+E3,n− E1,nE2,n− E1,n · MCO2− H,n− MCO2− L,n
The terms E1,p,n, E2,p,n, E3,p,n, and E1,n, E2,n, E3,n respectively are defined in paragraph 4.2.1.5.

4.2.1.7. Calculation of the NEDC fuel consumption value for an individual vehicle by the interpolation method
For each cycle phase p of the NEDC applicable for individual vehicles in the WLTP interpolation family, the fuel consumption, l/100km, shall be calculated as follows:
FCp,n=FCL,p,n+E3,p,n− E1,p,nE2,p,n− E1,p,n · FCH,p,n− FCL,p,n
The fuel consumption, l/100km, of the complete cycle for an individual vehicle of the WLTP interpolation family shall be calculated as follows:
FCind,n=FCL,n+E3,n− E1,nE2,n− E1,n · FCH,n− FCL,n
The terms E1,p,n, E2,p,n, E3,p,n, and E1,n, E2,n, E3,n respectively are defined in paragraph 4.2.1.5.

5. RECORDING OF DATA
The type-approval authority or the designated Technical Service shall ensure that the following information is recorded:
(a) the complete correlation file referred to in point 3.1.1 including the NEDC CO2 reference value referred to in points 3.1.2 and 3.1.3 and the manufacturer-declared value, as a test report in accordance with Annex VIII to Directive 2007/46/EC;
(b) the NEDC CO2 values resulting from physical measurements referred to in point 3.2 in this Annex, in the type-approval certificate specified in the Appendix to the Addendum to the type-approval certificate set out in Appendix 4 to Annex I to Regulation (EU) 2017/1151;
(c) the deviation factor (De) and the verification factor determined in accordance with point 3.2.8 of this Annex (if available), in the type-approval certificate as specified in the Appendix to the Addendum to the type-approval certificate set out in Appendix 4 to Annex I to Regulation (EU) 2017/1151 and in entry 49.1 of the certificate of conformity as specified in Annex IX to Directive 2007/46/EC;
(d) the NEDC phase-specific values and the phase-specific and combined fuel consumption values determined in accordance with point 3.3, as specified in the Appendix to the Addendum to the type-approval certificate set out in Appendix 4 to Annex I to Regulation (EU) 2017/1151;
(e) the NEDC CO2 (all phases and combined) and fuel consumption values (all phases and combined) determined in accordance with point 4.2 of this Annex, in entry 49.1 of the certificate of conformity as specified in Annex IX to Directive 2007/46/EC.
ANNEX II

‘ANNEX I

Data sources
Parameter	Certificate of conformity (Part 1, Model B set out in Annex IX of Directive 2007/46/EC)	Type-approval documentation (Directive 2007/46/EC)
Manufacturer	Section 0.5	Section 0.5 of Part I of Annex III
Type-approval number and its extension	Section 0.10	Type-approval certificate as specified in Annex VI
Type	Section 0.2	Section 0.2 of Part I of Annex III (where applicable)
Variant	Section 0.2	Section 3 of Annex VIII (where applicable)
Version	Section 0.2	Section 3 of Annex VIII (where applicable)
Make	Section 0.1	Section 0.1 of Part I of Annex III
Commercial name	Section 0.2.1	Section 0.2.1 of Part I of Annex III
Category of the vehicle type-approved	Section 0.4	Section 0.4 of Part I of Annex III
Category of the vehicle registered	n/a	n/a
Mass in running order (kg)	Section 13	Section 2.6 of Part I of Annex III
Footprint — Wheel base (mm)	Section 4	Section 2.1 of Part I of Annex III
Footprint — Track width (mm)	Section 30	Section 2.3.1 and 2.3.2 of Part I of Annex III
Specific NEDC CO2 emissions (g/km)	Section 49.1	Section 3 of Annex VIII
Specific WLTP CO2 emissions (g/km)	Section 49.4	n/a
Fuel type	Section 26	Section 3.2.2.1 of Part I of Annex III
Fuel mode	Section 26.1	Section 3.2.2.4 of Part I of Annex III
Engine capacity (cm3)	Section 25	Section 3.2.1.3 of Part I of Annex III
Electric energy consumption (Wh/km)	Section 49.2	Section 3 of Annex VIII
Code of the eco-innovation(s)	Section 49.3.1	Section 4 of Annex VIII
Total NEDC CO2 emissions savings due to the eco-innovation(s)	Section 49.3.2.1	Section 4 of Annex VIII
Total emissions WLTP CO2 savings due to the eco-innovation(s)	Section 49.3.2.2	
Vehicle identification number	Section 0.10	Point 9.17 of Part I of Annex III
Test mass [WLTP]	Section 47.1.1	n/a
Deviation factor De	Section 49.1	Appendix to the Addendum to the type-approval certificate set out in Appendix 4 to Annex I to Regulation (EU) 2017/1151
Verification factor (“1” or “0”)	Section 49.1	Appendix to the Addendum to the type-approval certificate set out in Appendix 4 to Annex I to Regulation (EU) 2017/1151
In accordance with Article 3(8) of this Regulation		
In accordance with Article 3(8) of this Regulation		
In accordance with Articles 3(7) and 3(8) of this Regulation		
In accordance with Articles 3 and 4 of Implementing Regulation (EU) 2017/1152		’

.