EN   EN  
 
 EUROPEAN  
COMMISSION   
Brussels, XXX   
[…](2023) XXX  draft  
ANNEX  
 
ANNEX  
to 
Commission Regulation  
amending Commission Regulation (EU) 2017/1151 as regards the emission type 
approval procedures for light passenger and commercial vehicles running exclusively on 
CO2 neutral fuels  
 EN 1  EN ANNEX  
(1) Annex I is amended a s follows: 
(a) Point 1.3 is added after point 1.2:  
‘1.3. For vehicles running exclusively on CO 2 neutral fuels, the manufacturer shall 
define a specific fuel type and its characteristics , other than the fuel types listed 
in Appendix 3, point 3.2.2.1, which shall apply for the purposes of this 
Regulation.’   
(b) Point 2.2.1. is replaced by the following:  
‘2.2.1. The requirements for inlets to fuel tanks shall be those specified in 
paragraphs 6.1.5. and 6.1.6. of UN Regulation 154. Inlets to fuel tanks for 
vehicles running exclusively on CO 2 neutral fuels shall  be designed and 
constructed  with special characteristics that allow  the fuelling exclusively with 
CO 2 neutral fuels. ’;  
(c) Point 2.3.1 is replaced by the following :  
‘2.3.1. The requirements for electronic system security of paragraph 6.1.7. of 
UN Regulation 154 shall be c omplied with. The effective application of these 
strategies in protecting the emission control systems may be tested during type 
approval and/or market surveillance. In case of vehicles running exclusively on 
CO 2 neutral fuels, t he manufacturers shall take adequate steps to protect 
fuelling monitors and fuelling inducement systems from tampering. Methods 
giving an adequate level of tamper protection shall be approved by the approval authority.’  
(d) In Point 2.4.1 in Figure I.2.4 the row covering CO
2 emissions, fuel 
consumption, electric energy consumption and electric range is replaced by the following:  
CO 2 
emissions, 
fuel 
consumption, 
electric 
energy 
consumption 
and electric 
range  Yes Yes Yes No Yes 
(both 
fuels)  Yes 
(both fuels)  Yes 
(Petrol 
only)  Yes 
(both 
fuels)  Yes Yes 
 Yes Yes  
 ; 
(e) Point 2.4.2 is added after  point 2.4.1:  
‘2.4.2. For vehicles running exclusively on CO 2 neutral fuels, test s requiring 
the use of a reference fuel shall be performed with test fuels within the 
specifications issued by the manufacturer for vehicle operation by the 
customer . The specifications of the test fuel shall be communicated to the type 
approval authority. In such case, physical and chemical parameters necessary 
for performing calculations for the purposes of this Regulation shall be 
determined by performing a  test fuel analysis  in an accredited  laboratory1. For 
vehicles running exclusively on CO 2neutral fue ls the tests shall be the ones 
specified for petro l in case of positive ignition engine vehicles and the ones 
 
1 According to EN ISO/IEC 17025  for the fuel analysis procedure.  EN 2  EN specified for diesel in case of compression ignition engine vehicles . In 
addition, a demonstration test shall be made to prove that vehicles running 
exclusively on CO 2neutral fuels cannot run if fue lled with  fuels  other than CO 2 
neutral fuels, or blends of CO 2 neutral fuels and other fuels ’;  
(f) In point 3.5.2.2 the equation  is replaced by the following:  
‘(E) = │(V 2-V1)│/V 1 ’; 
(g) The following is added to point 4.1.1.:  
‘For v ehicles running exclusively  on CO 2neutral fuels , it shall additionally be 
demonstrate d by testing that they cannot run with  fuels other than CO 2 neutral 
fuels. ’ 
(h) Points 4.6 and 4.7 are deleted;  
(i) Appendix 3 is amended as follows:   
(1) The following point is  inserted following point 3.2.2.1.1.:  
‘3.2.2.1.2. Type of CO 2 neutral fuel  with a reference to a traceable 
specification ’; 
(2) The following point s are inserted following point 3.2.4.4.3.:  
‘3.2.4. 5.  CO 2neutral fuel only:  (Y/N)  
3.2.4.5.1.  Description of fuel ling monitor  and its operating principles : … 
3.2.4.5.2.  Description of the fuelling inducement system  and its operation : 
….’; 
(3) In the Addendum to EC type -approval certificate No in Appendix 4, the 
following points are inserted following point 1.10.3.:  
‘1.10.3.1.  CO 2neutral f uel only: (Y/N) ’; 
 
(j) Point  1.1.4 of Appendi x 8a is replaced  by the following:  
‘1.1.4. FUEL FEED SYSTEM (if applicable)  
For more than one fuel feed system, please repeat the point  
Direct injection  : yes/no or description  
Vehicle fuel type  : Monofuel / bifuel / flex fuel  
CO 2neutral fuel  : Yes/No  
Control unit  :  
Part reference  : same as information document  
Software tested  : read via scantool, for example  
Air flowmeter  :  
Throttle body :  EN 3  EN Pressure sensor  :  
Injection pump :  
Injector(s)  :  
‘; 
(2) Annex II is amended as follows:  
(a) The following is added to point 5.3:  
‘ISC testing of  the functioning of the fuelling monitor and fuelling inducement 
system for vehicles running exclusively on CO 2 neutral fuels  shall be 
performed by fuel ling the vehicle with any relevant market fuel that is not CO 2 
neutral and with a blend of such fuel wit h a CO 2 neutral fuel, to check that the 
vehicle does not run on such fuel s or blends .’; 
(b) Point 5.4.1 is added : 
‘5.4.1. Frequency and scope of ISC testing of the functioning of the fuelling 
monitor and fuelling inducement system for vehicles running exclusiv ely on 
CO 2 neutral fuels.  
Each granting type approval authority shall perform the test  of the functioning 
of the fuelling monitor and fuelling inducement system for vehicles running 
exclusively on CO 2 neutral fuels  defined in point 5.3 on a minimum of 5 % of 
the relevant emission types  per manufacturer per year . In case there are less 
than 40 relevant emission types per manufacturer, at least two of them  shall be 
tested each year, where available.  
Point 5.10 shall not apply for this te st. Only  one vehicle per emission type  shall 
be tested . A failed test shall be considered a ‘ fail’ result for the whole emission 
type.’ 
(3) In Annex XX Section  1 is replaced by the following:  
‘1. INTRODUCTION  
This Annex sets out requirements for measuring;  
a) net engine power;  
b) net power and the maximum 30 minutes power of electric drive trains.  
The latter (b) in case of electric drivetrains composed of controllers and motors, which are used as the sole mode of propulsion, at least for part of the time.’.