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1. APPLICATION FOR EU TYPE-APPROVAL 1.1. The application of EU type-approval pursuant to Article 7(1) and (2) of Directive 2007/46/EC in respect of a replacement silencing system, or components thereof, as a separate technical unit intended for vehicles of categories M1 and N1 shall be submitted by the vehicle manufacturer or the manufacturer of the separate technical unit in question.

1.2. A model for the information document is contained in Appendix 1.

1.3. At the request of the technical service concerned, the applicant shall submit: 1.3.1 two examples of the system in respect of which application for EU type-approval has been made, 1.3.2. a silencing system of the type originally fitted to the vehicle when EU type-approval was granted, 1.3.3. a vehicle representative of the type to which the system is to be fitted, which meets the requirements of point 2.1 of Annex VI, 1.3.4. a separate engine corresponding to the type of vehicle described.

2. MARKINGS

2.4.1. The replacement silencing system, or components thereof, excluding fixing hardware and pipes shall bear: 2.4.1.1. the trade mark or trade name of the manufacturer of the replacement silencing system and its components, 2.4.1.2. the manufacturer's trade description.

2.4.2. These marks shall be clearly legible and indelible, even when the system is fitted to the vehicle.

3. GRANTING OF EU TYPE-APPROVAL 3.1. If the relevant requirements are satisfied, EU type-approval pursuant to Article 9(3) and, if applicable, Article 10(4) of Directive 2007/46/EC shall be granted.

3.2. A model for the EU type-approval certificate is contained in Appendix 2.

3.3. A type-approval number in accordance with Annex VII to Directive 2007/46/EC shall be assigned to each type of replacement silencing system, or components thereof, approved as a separate technical unit; section 3 of the type-approval number shall indicate the number of this Regulation. Furthermore, if the replacement silencing system is intended to be fitted on vehicle types complying with the limit values of Phase 1 in Annex III only, section 3 of the type-approval number shall be followed by the character ‘A’. If the replacement silencing system is intended to be fitted on vehicle types complying with the limit values of Phase 2 in Annex III only, section 3 of the type- approval number shall be followed by the character ‘B’. If the replacement silencing system is intended to be fitted on vehicle types complying with the limit values of Phase 3 in Annex III, section 3 of the type- approval number shall be followed by the character ‘C’. The same Member State shall not assign the same number to another type of replacement silencing system, or components thereof.

4. EU TYPE-APPROVAL MARK

4.1. Every replacement silencing system, or components thereof, excluding fixing hardware and pipes, conforming to a type approved under this Regulation shall bear an EU type-approval mark.

4.2. The EU type-approval mark shall consist of a rectangle surrounding the lower case letter ‘e’ followed by the distinguishing letter(s) or number of the Member State which has granted the approval: ‘1’ for Germany ‘2’ for France ‘3’ for Italy ‘4’ for the Netherlands ‘5’ for Sweden ‘6’ for Belgium ‘7’ for Hungary ‘8’ for the Czech Republic ‘9’ for Spain ‘11’ for the United Kingdom ‘12’ for Austria ‘13’ for Luxembourg ‘17’ for Finland ‘18’ for Denmark ‘19’ for Romania ‘20’ for Poland ‘21’ for Portugal ‘23’ for Greece ‘24’ for Ireland ‘25’ for Croatia ‘26’ for Slovenia ‘27’ for Slovakia ‘29’ for Estonia ‘32’ for Latvia ‘34’ for Bulgaria ‘36’ for Lithuania ‘49’ for Cyprus ‘50’ for Malta It shall also include in the vicinity of the rectangle the ‘base approval number’ contained in section 4 of the type-approval number referred to in Annex VII to Directive 2007/46/EC, preceded by the two figures indicating the sequence number assigned to the most recent major technical amendment to this Regulation which was applicable at the time of the vehicle type-approval. For this Regulation in its original form, the sequence number is 00. Furthermore, that sequence number shall be preceded by the character ‘A’ if the replacement silencing system is intended to be fitted on vehicle types complying with the limit values of Phase 1 in Annex III only, or the character ‘B’ if the replacement silencing system is intended to be fitted on vehicle types complying with the limit values of Phase 2 in Annex III only, or the character ‘C’ if the replacement silencing system is intended to be fitted on vehicle types complying with the limit values of Phase 3 in Annex III.

4.3. The mark shall be clearly legible and indelible even when the replacement silencing system, or components thereof, is fitted to the vehicle.

4.4. A model for the EU type-approval mark is contained in Appendix 3.

5. SPECIFICATIONS 5.1. General specifications 5.1.1. The replacement silencing system, or components thereof, shall be designed, constructed and capable of being mounted so as to ensure that the vehicle complies with this Regulation under normal conditions of use, notwithstanding any vibrations to which it may be subject.

5.1.2. The silencing system, or components thereof, shall be designed, constructed and capable of being mounted so that reasonable resistance to the corrosion phenomenon to which it is exposed is obtained having regard to the conditions of use of the vehicle.

5.1.3. Additional prescriptions related to tamperability and manually adjustable multi-mode exhaust or silencing systems 5.1.3.1. All exhaust or silencing systems shall be constructed in a way that does not easily permit removal of baffles, exit-cones and other parts whose primary function is as part of the silencing/expansion chambers. Where incorporation of such a part is unavoidable, its method of attachment shall be such that removal is not facilitated easily (e.g. with conventional threaded fixings) and shall also be attached such that removal causes permanent/irrecoverable damage to the assembly.

5.1.3.2. Exhaust or silencing systems with multiple, manually adjustable operating modes shall meet all requirements in all operating modes. The reported sound levels shall be those resulting from the mode with the highest sound levels.

5.2. Specifications regarding sound levels 5.2.1. Conditions of measurement

5.2.1.1. The noise test of the silencing system and the replacement silencing system has to be executed with the same normal tyres, as defined in paragraph 2 of UNECE Regulation No 117. At the request of the manufacturer, the tests shall not be done with traction tyres, special use tyres or snow tyres, as defined in paragraph 2 of UNECE Regulation No 117. Such tyres could increase the sound level of the vehicle or would have a masking effect on the noise reduction performance comparison. The tyres may be of used condition but shall satisfy legal requirements for in-traffic use.

5.2.2. The noise reduction performance of the replacement silencing system, or components thereof, shall be verified by means of the methods described in point 1 of Annex II. In particular, for the application of this point, reference shall be made to the amendment level of this Regulation which was in force at the time of type-approval of the new vehicle.

(a) Measurement with running vehicle When the replacement silencing system, or components thereof, is mounted on the vehicle described in point 1.3.3, the sound levels obtained shall satisfy one of the following conditions:

(i) the value measured (rounded to the nearest integer) shall not exceed by more than 1 dB(A) the type-approval value obtained under this Regulation with the type of vehicle concerned;

(ii) the value measured (before any rounding to the nearest integer) shall not exceed by more than 1 dB(A) the noise value measured (before any rounding to the nearest integer) on the vehicle described in point 1.3.3., when this is fitted with a silencing system corresponding to the type fitted to the vehicle when submitted for type-approval under this Regulation. Where back-to-back comparison of the replacement silencing system with the original system is chosen, for the application of point 4.1.2.1.4.2 and/or point 4.1.2.2.1.2 of Annex II, it is allowed to have a gear change to higher accelerations and the use of electronic or mechanical devices to prevent this downshift is not mandatory. If under these conditions the sound level of the test vehicle becomes higher than the COP values, the technical service will decide on the representativeness of the test vehicle.

(b) Measurement with stationary vehicle When the replacement silencing system, or components thereof, is mounted on the vehicle described in point 1.3.3, the sound levels obtained shall satisfy one of the following conditions:

(i) the value measured (rounded to the nearest integer) shall not exceed by more than 2 dB(A) the type-approval value obtained under this Regulation with the type of vehicle concerned;

(ii) the value measured (before any rounding to the nearest integer) shall not exceed by more than 2 dB(A) the noise value measured (before any rounding to the nearest integer) on the vehicle described in point 1.3.3, when this is fitted with a silencing system corresponding to the type fitted to the vehicle when submitted for type-approval under this Regulation.

5.2.3. Further to the requirements of Annex II, any replacement silencing system, or components thereof, has to fulfil the applicable specifications of Annex VII. For replacement silencing systems intended for vehicles type approved in accordance with Directive 70/157/EEC the requirements of Annex VII as well as the specifications of points 5.2.3.1 to 5.2.3.3 of this Annex do not apply.

5.2.3.1. Where the replacement silencing system, or components thereof, is a system or components with variable geometry, in the application for type-approval the manufacturer shall provide a statement in conformity with the Appendix to Annex VII that the silencing system type to be approved complies with the requirements of point 5.2.3 of this Annex. The approval authority may require any relevant test to verify the compliance of the silencing system type to the additional sound emission provisions.

5.2.3.2. Where the replacement silencing system, or components thereof, is not a system with variable geometry, it is sufficient in the application for type-approval that the manufacturer provides a statement in conformity with the Appendix to Annex VII that the silencing system type to be approved complies with the requirements of point 5.2.3 of this Annex.

5.2.3.3. The compliance statement shall read as follows: ‘(Name of the manufacturer) attests that the silencing system of this type complies with the requirements of point 5.2.3 of Annex IX to Regulation (EU) No 540/2014. (Name of the manufacturer) makes this statement in good faith, after having performed an appropriate engineering evaluation of the sound emission performance over the applicable range of operating conditions.’