Document ID: chunk:federal_register_of_legislation:F2023L00129:front:0:p39
Version: federal_register_of_legislation:F2023L00129
Segment Type: other
Provision Reference: 
Character Range: 107503–110351

nozzle that has an external diameter of 23.6 mm or greater.

              6.3.2. Paragraph 6.3.1. shall not apply to a vehicle for which both of the following conditions are satisfied:

                  (a) The vehicle is designed and constructed so that no device designed to control the emission of gaseous pollutants is adversely affected by leaded petrol;

                  (b) The vehicle is conspicuously, legibly and indelibly marked with the symbol for unleaded petrol specified in ISO 2575:2004 in a position immediately visible to a person filling the fuel tank. Additional marking are permitted.

              6.3.3. Provision shall be made to prevent excess evaporative emissions and fuel spillage caused by a missing fuel filler cap. This may be achieved by using one of the following:

              (a) An automatically opening and closing, non-removable fuel filler cap;

                  (b) Design features which avoid excess evaporative emissions in the case of a missing fuel filler cap;

                  (c) Or in case of M1 or N1 vehicles, any other provision which has the same affect. Examples may include, but are not limited to, a tethered filler cap, a chained filler cap or one utilizing the same locking key for the filler cap as for the vehicle's ignition. In this case the key shall be removable from the filler cap only in the locked condition.
  7.  Engine family
7.1. Parameters defining the engine family
 The engine family, as determined by the engine manufacturer shall comply with paragraph 5.2. of Annex 4.
In case of a dual-fuel engine, the engine family shall also comply with the additional requirements of paragraph 3.1.1. of Annex 15.
7.2. Choice of the parent engine
The parent engine of the family shall be selected in accordance with the requirements set out in paragraph 5.2.4. of Annex 4.
    7.3.  Extension to include a new engine system into an engine-family

              7.3.1. At the request of the manufacturer and upon approval of the Type Approval Authority, a new engine system may be included as a member of a certified engine family if the criteria specified in paragraph 7.1. are met.

              7.3.2. If the elements of design of the parent engine system are representative of those of the new engine system according to paragraph 7.2. or, in the case of dual-fuel engines, to paragraph 3.1.2. of Annex 15, then the parent engine system shall remain unchanged and the manufacturer shall modify the information document specified in Annex 1.

7.3.3. If the new engine system contains elements of design that are not represented by the parent engine system according to paragraph 7.2. or, in the case of dual-fuel engines, to paragraph 3.1.2. of Annex 15, but itself would represent the whole family according to these paragraphs, then the new engine system shall become the