Document ID: chunk:federal_register_of_legislation:F2022C00213:front:0:p18
Version: federal_register_of_legislation:F2022C00213
Segment Type: other
Provision Reference: 
Character Range: 48802–51625

the family,
         (b) have a lower overall transmission ratio than the family member tested due solely to a change in tyre sizes, and
         (c) conform with the family in all other respects.

     7.5.2. For vehicles of category N1 that are approved as members of a vehicle family using the procedure in paragraph 7.6.3., the type-approval can be extended to vehicles from within the same family without additional testing only if the technical service estimates that the fuel consumption of the new vehicle falls within the limits made up of those two vehicles in the family that have the lowest and the highest fuel consumption, respectively.

     7.6. Approval of vehicles of category N1 within a family, if powered by an internal combustion engine only or by a hybrid electric power train

     Vehicles of category N1 can be approved within a family as defined in paragraph 7.6.1. using one of the two alternative methods described in paragraphs 7.6.2. and 7.6.3.

     7.6.1. N1 vehicles may be grouped together into a family for the purposes of this Regulation if the following parameters are identical or within the specified limits:

7.6.1.1. Identical parameters are:
         (a) manufacturer and type as defined in Annex 4, item 2.,
         (b) engine capacity,
         (c) emission control system type,
         (d) fuel system type as defined in Annex 4, item 6.7.2.

        7.6.1.2. The following parameters have to be within the following limits:
         (a) transmission overall ratios (no more than 8 per cent higher than the lowest) as defined in Annex 4, item 6.10.3.,
         (b) reference mass (no more than 220 kg lighter than the heaviest),
         (c) frontal area (no more than 15 per cent smaller than the largest),
         (d) engine power (no more than 10 per cent less than the highest value).

     7.6.2. A vehicle family, as defined in paragraph 7.6.1., can be approved with CO2 emission and fuel consumption data that are common to all members of the family.  The technical service must select for testing the member of the family which the service considers to have the highest CO2 emission.  The measurements are performed as described in paragraph 5. and Annex 6, and the results according to the method described in paragraph 5.5. are used as type-approval values that are common to all members of the family.

     7.6.3. Vehicles that are grouped in a family as defined in paragraph 7.6.1. can be approved with individual CO2 emission and fuel consumption data for each of the family members.  The technical service selects for testing the two vehicles, which the service considers to have the highest and the lowest CO2 emissions respectively.  The measurements are performed as described in paragraph 5. and Annex 6.  If the manufacturer's data for these two vehicles