In-service conformity. 9.1. Introduction This paragraph sets out the tailpipe emissions and OBD (including IUPRM) in-service conformity requirements for vehicles type approved to this Regulation. 9.2. Audit of in-service conformity 9.2.1. The audit of in-service conformity by the Type Approval Authority shall be conducted on the basis of any relevant information that the manufacturer has, under the same procedures as those for the conformity of production defined in the 1958 Agreement, Appendix 2 (E/ECE/324-E/ECE/TRANS/505/Rev.2). Information from Type Approval Authority and Contracting Party surveillance testing may complement the in-service monitoring reports supplied by the manufacturer. 9.2.2. Figures App4/1 and App4/2 of Appendix 4 to this Regulation illustrate the procedure for in-service conformity checking. The process for in-service conformity is described in Appendix 5 to this Regulation. 9.2.3. As part of the information provided for the in-service conformity control, at the request of the Type Approval Authority, the manufacturer shall report to the Type Approval Authority on warranty claims, warranty repair works and OBD faults recorded at servicing, according to a format agreed at type approval. The information shall detail the frequency and substance of faults for emissions related components and systems. The reports shall be filed at least once a year for each vehicle model for the duration of the period of up to 5 years of age or 100,000 km, whichever is the sooner. 9.2.4. Parameters defining the in-service family The in-service family may be defined by basic design parameters which shall be common to vehicles within the family. Accordingly, vehicle types may be considered as belonging to the same in-service family if they have in common, or within the stated tolerances, the following parameters: 9.2.4.1. Combustion process (two stroke, four stroke, rotary);
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Sources: Agreement Concerning the Adoption of Uniform Technical Prescriptions for Wheeled Vehicles, Agreement Concerning the Adoption of Uniform Technical Prescriptions for Wheeled Vehicles