Document ID: chunk:federal_register_of_legislation:F2024L00089:front:0:p6
Version: federal_register_of_legislation:F2024L00089
Segment Type: other
Provision Reference: 
Character Range: 17420–20399

dB(A)  Annex 3 para.2.3.1.  Background A-weighted sound pressure level.
∆Lbgn, p-p   dB(A)  Annex 3 para.2.3.2.  Range of maximum to minimum value of the representative background noise A-weighted sound pressure level over a defined time period.
∆L           dB(A)  Annex 3 para.2.3.2.  A-weighted sound pressure level of jth test result minus the A-weighted background noise level (∆L = Ltest,j - Lbgn)
vref         km/h   Annex 3 para.4.      Reference vehicle velocity used for calculating frequency shift percentage.
fj, speed    Hz     Annex 3 para.4.      Single frequency component at a given vehicle speed per sample segment, e.g. f1, 5
fref         Hz     Annex 3 para.4.      Single frequency component at reference vehicle speed
fspeed       Hz     Annex 3 para.4.      Single frequency component at a given vehicle speed, e.g. f5
lveh         m      Annex 3, Appendix    Length of vehicle

3.  Application for approval
3.1. The application for approval of a vehicle type with regard to reduced audibility shall be submitted by its manufacturer or by a duly accredited representative.
3.2. It shall be accompanied by the undermentioned documents and the following particulars:
3.2.1. A description of the vehicle type with regard to the items mentioned in paragraph 2.3. above;
3.2.2. A description of the engine(s) as mentioned in Annex 1, Addendum;
3.2.3. If applicable, a list of the components constituting the AVAS;
3.2.4. If applicable, a drawing of the assembled AVAS and an indication of its position on the vehicle.
3.3. In the case of paragraph 2.3., the single vehicle, representative of the type in question, will be selected by the Technical Service conducting approval tests, in accordance with the vehicle manufacturer.
3.4. The Type Approval Authority shall verify the existence of satisfactory arrangements for ensuring effective control of the conformity of production before type approval is granted.
4.  Markings
4.1. The components of the AVAS (if applicable) shall bear:
4.1.1. The trade name or mark of the manufacturer(s) of the AVAS components;
4.1.2. A designated identification number(s).
4.2. These markings shall be clearly legible and be indelible.
5.  Approval
5.1. Type approval shall only be granted if the vehicle type meets the requirements of paragraphs 6. and 7. below.
5.1.1 In case of hybrid vehicles, equipped with an internal combustion engine: if the manufacturer can demonstrate to the Type Approval Authority that the vehicle cannot be assessed according to the provisions of the Regulation because the internal combustion engine used for direct propulsion will be operational during the specified tests within this regulation, this Regulation shall be deemed not applicable to this vehicle.
5.2. An approval number shall be assigned to each type approved. Its first two digits (at present 01 corresponding to the 01 series of amendments) shall indicate the series of amendments incorporating the most recent major technical