EN   EN 
 
 
 EUROPEAN  
COMMISSION   
Brussels, XXX   
[…](2022) XXX  draft 
ANNEX 14  
 
ANNEX  
to the  
COMMISSION REGULATION  
amending Commission Regulation (EU) 2017/1151 for the purpose of adopting to 
technical progress the emission type approval procedures for light passenger and 
commercial vehicles    
EN 1  EN ANNEX XIV 
(1) Annex XXI is replaced by the following:  
‘ 
ANNEX XXI  
TYPE 1 EMISSIONS TEST PROCEDURES  
1. INTRODUCTION  
This Annex describes the procedure  for determining the levels of emissions of 
gaseous compounds, particulate matter, particle number, CO 2 emissions, fuel 
consumption, electric energy consumption and electric range from light -duty 
vehicles.  
 
2. General requirements  
2.1. The general requirem ents for conducting the type 1 test shall be those set out in 
UN Regulation No 154.   
2.2. The limit values referred to in Table 1A of paragraph 6.3.10  of UN Regulation 
No 154  replace the limit values  set out in Annex I, Table 2, to Regulation (EC) No 
715/2007.  
 
3. Technical  requirements  
The technical  requirements for conducting the type 1 test shall be those set out in 
paragraph 6 .3. and Annexes Part B of UN R egulation No 154, with the exceptions 
described in the points below.  
 
3.1. Table A4/2 in parag raph 4.2.2.1. of Annex B4 to UN Regulation No 154 shall be 
replaced with:  
Energy 
efficiency 
class Range of RRC for C1 
tyres Range of RRC for C2 tyres  Range of RRC for C3 tyres  
A RRC ≤ 6.5  RRC ≤ 5.5  RRC ≤ 4.0  
B 6.6 ≤ RRC ≤ 7.7  5.6 ≤ RRC ≤ 6.7  4.1 ≤ RRC ≤  5.0 
C 7.8 ≤ RRC ≤ 9.0  6.8 ≤ RRC ≤ 8.0  5.1 ≤ RRC ≤ 6.0  
D 9.1 ≤ RRC ≤ 10.5  8.1 ≤ RRC ≤ 9.0  6.1 ≤ RRC ≤ 7.0  
E RRC ≥10.6  RRC ≥ 9.1  RRC ≥ 7.1  
Energy 
efficiency 
class Value of RRC to be used for 
interpolation for C1 tyres  Value of RRC to be used for 
interpolation for C2 tyres  Value of RRC to be used for 
interpolation for C3 tyres  
A RRC = 5.9*  RRC = 4.9*  RRC = 3.5*  
B RRC = 7.1  RRC = 6.1  RRC = 4.5   
EN 2  EN C RRC = 8.4  RRC = 7.4  RRC = 5.5  
D RRC = 9.8  RRC = 8.6  RRC = 6.5  
E RRC = 11.3  RRC = 9.9  RRC = 7.5  
*In case the actual RRC value is lower than this value, the actual rolling resistance value of 
the tyre or any higher value up to the RRC value indicated here shall be used for 
interpolation.  
     
 
3.2. Appendix 5 of Annex B8 to UN Regulation No 154 shall be replaced with:  
Appendix 5  
Utility factors (UF) for OVC -HEVs and OVC -FCHVs (as applicable)  
 
1. Reserved  
2. For the approval of OVC -HEVs or OVC -FCHVs of category M1 or N1 with 
emission characters EA, EB or EC as referred to in Table 1, Appendix 6 to Annex I , 
the fractional utility factor UF j for the weighting of period  j, shall be calculated in 
accordance with the following equation:  
UFj(dj)= 1− exp {−(∑Cik
i=1×(dj
dnx)i
)}− ∑UF lj−1
l=1 
where:  
UF j  utility factor for period j;  
dj  measured distance driven at the end of period j, km;  
Ci  ith coefficient (see Table  A8.App5/1);  
dnx  dnea, dneb, dnec, normalized distance (see Table  A8.App5/1);  
k  number of terms and coefficients in the exponent;  
j  number of period considered;  
i  number of consi dered term/coefficient;  
∑ UF lj−1
l=1 sum of calculated utility factors up to period (j -1) 
 
The normalized distance “d nx” shall be set in accordance with the Table A8.App5/1, where 
the values  dneb shall  be applied from 1 January 2025 , and dnec from 1 January 2027 . 
The UF  shall, where app ropriate , be revised a t the latest by 31 December 2024 , and again at 
the latest by 31 December 2026 , taking into account the real -world fuel consumption data 
recorded by fuel consumption monitoring devices  on-board OVC -HEVs or OVC -FCHVs 
and made available pursuant to Implementing Regulation (EU) 2021/392.   
 
Table  A8.App5/1  
Parameters for the determination of fractional UFs (as applicable)   
EN 3  EN Parameter  Value  
dnea* 800 km  
dneb* 2200  km 
dnec* 4260  km 
C1 26.25  
C2 -38.94  
C3 -631.05  
C4 5964.83  
C5 -25095  
C6 60380.2  
C7 -87517  
C8 75513.8  
C9 -35749  
C10 7154.94  
*The value to be applied shall be that corresponding to the emission characters EA, 
EB and EC  as specified in Table 1, Appendix 6 to Annex I . 
’.