Document ID: chunk:federal_register_of_legislation:F2023C00229:reg:4:p31
Version: federal_register_of_legislation:F2023C00229
Segment Type: reg
Provision Reference: reg 4 (pt 31/42)
Character Range: 88131–91405

letters and figures must be indelible. Additionally, labels must be attached in such a manner that their fixing is durable for the useful life of the engine, and the labels cannot be removed without destroying or defacing them.

5.1.5.3.                    Placing

              Labels must be secured to an engine part necessary for normal engine operation and not normally requiring replacement during engine life. Additionally, these labels must be located so as to be readily visible to the average person after the engine has been completed with all the auxiliaries necessary for engine operation.

5.2.                            In case of an application for EC type-approval for a vehicle type in respect of its engine, the marking specified in Section 5.1.5 shall also be placed close to fuel filling aperture.

5.3.                            In case of an application for EC type-approval for a vehicle type with an approved engine, the marking specified in Section 5.1.5 shall also be placed close to the fuel filling aperture.

6.                                 SPECIFICATIONS AND TESTS

6.1.                            General

6.1.1.                        Emission control equipment
6.1.1.1.                    The components liable to affect the emission of gaseous and particulate pollutants from diesel engines and the emission of gaseous pollutants from gas engines shall be so designed, constructed, assembled and installed as to enable the engine, in normal use, to comply with the provisions of this Directive.

6.1.2.                        Functions of emission control equipment

              6.1.2.1.                    The use of a defeat device and/or an irrational emission control strategy is forbidden.

              6.1.2.2.                    An auxiliary control device may be installed to an engine, or on a vehicle, provided that the device:

                —    operates only outside the conditions specified in paragraph 6.1.2.4, or

                —    is activated only temporarily under the conditions specified in paragraph 6.1.2.4 for such purposes as engine damage protection, air-handling device protection, smoke management, cold start or warming-up, or

                —    is activated only by on-board signals for purposes such as operational safety and limp-home strategies.

6.1.2.3.                    An engine control device, function, system or measure that operates during the conditions specified in Section 6.1.2.4 and which results in the use of a different or modified engine control strategy to that normally employed during the applicable emission test cycles will be permitted if, in complying with the requirements of Sections 6.1.3 and/or 6.1.4, it is fully demonstrated that the measure does not reduce the effectiveness of the emission control system. In all other cases, such devices shall be considered to be a defeat device.

6.1.2.4.                    For the purposes of point 6.1.2.2, the defined conditions of use under steady state and transient conditions are:

                —    an altitude not exceeding 1 000 metres (or equivalent atmospheric pressure of 90 kPa),

                —    an ambient temperature within the range 283 to 303 K (10 to 30 °C),

                —    engine