Document ID: chunk:federal_register_of_legislation:F2024L00446:reg:16:p66
Version: federal_register_of_legislation:F2024L00446
Segment Type: reg
Provision Reference: reg 16 (pt 66/108)
Character Range: 1072848–1075808

1 test is used to verify the emissions of gaseous compounds, particulate matter, particle number, CO2 emission, fuel consumption, electric energy consumption and electric ranges over the applicable WLTP test cycle and OBFCM accuracy (where applicable).
              1.1.1. The tests shall be carried out according to the method described in paragraph 2. of this annex or paragraph 3. of Annex B8 for pure electric, hybrid electric and compressed hydrogen fuel cell hybrid vehicles. Exhaust gases, particulate matter and particle number shall be sampled and analysed by the prescribed methods.
              1.1.2. When the reference fuel to be used is LPG or NG/biomethane, the following provisions shall apply additionally.

              1.1.2.1. Exhaust emissions approval of a parent vehicle

              1.1.2.1.1. The parent vehicle should demonstrate its capability to adapt to any fuel composition that may occur across the market. In the case of LPG there are variations in C3/C4 composition. In the case of NG/biomethane there are generally two types of fuel, high calorific fuel (H-gas) and low calorific fuel (Lgas), but with a significant spread within both ranges; they differ significantly in Wobbe index. These variations are reflected in the reference fuels.

              1.1.2.1.2. In the case of vehicles fuelled by LPG, NG/biomethane, the parent vehicle(s) shall be tested in the Type 1 test on the two extreme reference fuels of Annex B3. In the case of NG/biomethane, if the transition from one fuel to another is in practice aided through the use of a switch, this switch shall not be used during type approval. In such a case on the manufacturer's request and with the agreement of the approval authority the pre-conditioning cycle referred in paragraph 2.6. of this annex may be extended.

              1.1.2.1.3. The vehicle is considered to conform if, under the tests and reference fuels mentioned in paragraph 1.1.2.1.2. of this annex, the vehicle complies with the emission limits.

              1.1.2.1.4. In the case of vehicles fuelled by LPG or NG/biomethane, the ratio of emission results "r" shall be determined for each pollutant as follows:

Type(s) of fuel                                 Reference fuels  Calculation of "r"
LPG and petrol or LPG only                      Fuel A

Fuel B

NG/biomethane and petrol or NG/biomethane only  Fuel G20

Fuel G25

              1.1.2.2. Exhaust emissions approval of a member of the family:
              For the type approval of a mono fuel gas vehicle and bi fuel gas vehicles operating in gas mode, fuelled by LPG or NG/Biomethane, as a member of the family, a Type 1 test shall be performed with one gas reference fuel. This reference fuel may be either of the gas reference fuels. The vehicle is considered to comply if the following requirements are met:
              1.1.2.2.1. The vehicle complies with the definition of a family member as defined in paragraph