Document ID: chunk:federal_register_of_legislation:F2012C00283:front:0:p25
Version: federal_register_of_legislation:F2012C00283
Segment Type: other
Provision Reference: 
Character Range: 77073–80043

the granting of type approval by the Competent Authority. An assessment shall be made based on surveys and studies of production vehicles.
              5.3.8. On-board diagnostics OBD - test
               This test shall be carried out on all vehicles referred to in paragraph 1. The test procedure described in Annex 11, paragraph 3. shall be followed.
  6.  Modifications of the vehicle type
              6.1.  Every modification of the vehicle type shall be notified to the Technical Service that approved the vehicle type. The department may then either:
              6.1.1. Consider that the modifications made are unlikely to have an appreciable adverse effect and that in any case the vehicle still complies with the requirement; or
              6.1.2. Require a further test report from the Technical Service responsible for conducting the tests.
              6.2. Confirmation or refusal of approval, specifying the alterations, shall be communicated by the procedure specified in paragraph 4.3. above to the Parties to the Agreement which apply this Regulation.
              6.3. The type Approval Authority issuing the extension of approval shall assign a series number to the extension and inform thereof the other Contracting Parties applying this Regulation by means of a communication form conforming to the model in Annex 2 to this Regulation.
  7.  Extensions to type approvals
7.1.  Extensions for tailpipe emissions (Type I, Type II and Type VI tests)
              7.1.1.  Vehicles with different reference masses
              7.1.1.1. The type approval shall be extended only to vehicles with a reference mass requiring the use of the next two higher equivalent inertia or any lower equivalent inertia.
              7.1.1.2. For category N vehicles, the approval shall be extended only to vehicles with a lower reference mass, if the emissions of the vehicle already approved are within the limits prescribed for the vehicle for which extension of the approval is requested.
              7.1.2.  Vehicles with different overall transmission ratios
              7.1.2.1. The type approval shall be extended to vehicles with different transmission ratios only under certain conditions.
              7.1.2.2. To determine whether type approval can be extended, for each of the transmission ratios used in the Type I and Type VI tests, the proportion,
                E = |(V2 − V1)|/V1
                shall be determined where, at an engine speed of 1,000 min-1, V1 is the speed of the type of vehicle approved and V2 is the speed of the vehicle type for which extension of the approval is requested.
              7.1.2.3. If, for each transmission ratio, E ≤ 8 per cent, the extension shall be granted without repeating the Type I and Type VI tests.
              7.1.2.4. If, for at least one transmission ratio, E > 8 per cent, and if, for each gear ratio, E ≤ 13 per cent, the Type I and Type VI tests shall be repeated. The tests may