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Normalisation of specific CO2 emissions of new heavy-duty vehicles as referred to in Article 4 1. Normalisation of specific CO2 emissions For the purposes of the calculation in point 2.1 of Annex I, the values of CO2 emissions CO2v,mp of heavy-duty vehicles are normalised as follow: CO2v,mp = reportCO2v,mp + ΔCO2v,mp(m) + ΔCO2cvv,mp m = PLsg,mp – PLv,mp + cCWv (for heavy-duty vehicles of categories N and O) m = PMsg,mp – PMv,mp + cCWv (for heavy-duty vehicles of category M) The values of CO2 emissions CO2pv,mp of primary vehicles are normalised in accordance with the same methodology, using the parameters for primary vehicles. Where, CO2v,mp are the normalised CO2 emissions of the heavy-duty vehicle v determined for a mission profile mp that are to be considered in the calculation of point 2.1 of Annex I; reportCO2v,mp are the CO2 emissions in g/km of a new heavy-duty vehicle v determined for a mission profile mp and reported pursuant to Articles 13a and 13b; ΔCO2v,mp(m) is to be determined in accordance with point 3; ΔCO2cvv,mp is to be determined in accordance with point 4;

PLv,mp is the payload of the heavy-duty vehicle v in the mission profile mp, as determined from the data reported pursuant to Articles 13a and 13b; PLsg,mp is the payload for the vehicle sub-group sg and mission profile mp as provided for in point 2.5 of Annex I; PMv,mp is the passenger mass of the heavy-duty vehicle v in the mission profile mp, as determined from the data reported pursuant to Articles 13a and 13b; PMsg,mp is the passenger mass for the vehicle sub-group sg and mission profile mp as provided for in point 2.5 of Annex I; cCWv is the correction of the curb weight of the heavy-duty vehicle v applied in accordance with point 2.

2. Curb Weight normalisation Since the transport utility of a heavy-duty vehicle increases with its technically permissible maximum payload or passenger number, but for technical reasons higher values for those parameters are correlated with higher curb weights and therefore higher CO2 emissions, the following correction of the curb weight of a heavy-duty vehicle v in the vehicle sub-group sg for the purpose of the normalisation of its specific CO2 emissions in accordance with point 1 shall be applied:

cCWv = asg · (maxPLsg – maxPLv) for heavy-duty vehicles of category N; cCWv = 0 for heavy-duty vehicles of category O; cCWv = asg · (maxPNsg – maxPNv) for heavy-duty vehicles of category M; Where, asg is a linear coefficient determined in accordance with point 2.1 for the reporting period of the year in which the heavy-duty vehicle v was registered; maxPLv is the technically permissible maximum payload of the heavy-duty vehicle v as determined from the data reported pursuant to Articles 13a and 13b; maxPNv is the technically permissible maximum passenger number of the heavy-duty vehicle v as determined from the data reported pursuant to Articles 13a and 13b; maxPLsg is the technically permissible maximum payload of the vehicle sub-group sg determined in accordance with point 2.5 of Annex I; maxPNsg is the technically permissible maximum passenger number of the vehicle sub-group sg determined in accordance with point 2.5 of Annex I.

2.1. Determination of normalisation parameters

For each reporting period, the parameters asg and bsg shall be determined with a linear regression analysis of the correlation of the values of CWv with the values of maxPLv (heavy-duty vehicles of category N) and maxPNv (heavy-duty vehicles of category M), considering all newly registered heavy-duty vehicles v in the vehicle sub-group sg: CWv ≈ asg maxPLv + bsg for heavy-duty vehicles of category N; CWv ≈ asg maxPNv + bsg for heavy-duty vehicles of category M. Where, CWv is the curb weight of the heavy-duty vehicle v, as determined from the data reported pursuant to Articles 13a and 13b; if no precise value is available, it may be approximated by the corrected actual mass of the heavy-duty vehicle v; maxPLv is the technically permissible maximum payload of the heavy-duty vehicle v as determined from the data reported pursuant to Articles 13a and 13b; maxPNv is the technically permissible maximum passenger number of the heavy-duty vehicle v as determined from the data reported pursuant to Articles 13a and 13b.

3. Change of CO2 emissions for change in total vehicle mass

The ex-post change of CO2 emissions of a heavy-duty vehicle v to be determined for a mission profile mp due to an ex-post change in the total mass to be attributed to the heavy-duty vehicle for the determination of CO2 emissions is defined by the following linear approximation: ΔCO2v,mp(m) = m (CO2v,r – CO2v,l) / (Mr – Ml) Where, m is the change of total mass attributed to the heavy-duty vehicle v for the determination of its CO2 emissions; CO2v,r are the CO2 emissions of the heavy-duty vehicle v in g/km, without the change of mass, determined for the same mission profile mp, representative loading conditions; CO2v,l are the CO2 emissions of the heavy-duty vehicle v in g/km, without the change of mass, determined for the same mission profile mp, low loading conditions; Mr is the total vehicle mass in simulation, without the change of mass, for the same mission profile mp, representative loading conditions; Ml is the total vehicle mass in simulation, without the change of mass, for the same mission profile mp, low loading conditions.

4. Normalisation for different cargo volumes

Heavy-duty vehicles of category O within the same vehicle sub-group have different cargo volumes. Since the transport utility of a heavy-duty vehicle increases with the cargo volume, but for technical reasons such increase is also correlated with higher CO2 emissions, the following correction of the CO2 emissions of a heavy-duty vehicle v in the vehicle sub-group sg shall be applied: ΔCO2cvv,mp = asg,mp (CVsg – CVv) Where, asg,mp is a linear coefficient determined in accordance with point 4.1 for the reporting period of the year in which the heavy-duty vehicle v was registered; CVv is the cargo volume of the heavy-duty vehicle v as determined from the data reported pursuant to Articles 13a and 13b; CVsg is the cargo volume of the vehicle sub-group sg determined in accordance with point 2.5 of Annex I. For heavy-duty vehicles of categories N and M, the correction of CO2 emissions ΔCO2cvv,mp shall be 0.

4.1. Determination of normalisation parameters

For each reporting period and mission profile, the parameters asg,mp and bsg,mp shall be determined with a linear regression analysis of the correlation of the values of [reportCO2v,mp + ΔCO2v,mp(m)] with the values of CVv , considering all newly registered heavy-duty vehicles v in the vehicle sub-group sg: reportCO2v,mp + ΔCO2v,mp(m) ≈ asg,mp · CVv + bsg,mp Where, CVv is the cargo volume of the heavy-duty vehicle v as determined from the data reported pursuant to Articles 13a and 13b; reportCO2v,mp, ΔCO2v,mp(m) are as defined in point 1.