Agreement - UNECE

1 Agreement Concerning the Adoption of Uniform Technical Prescriptions for Wheeled Vehicles, Equipment and Parts which can be fitted and/or be used on Wheeled Vehicles and the Conditions for Reciprocal Recognition of Approvals Granted on the Basis of these Prescriptions* (Revision 2, including the amendments which entered into force on 16 October 1995) _____ Addendum 48: Regulation No. 49 Revision 6 Incorporating all valid text up to: Supplement 4 to the 05 series of amendments Date of entry into force: 23 June 2011 Supplement 5 to the 05 series of amendments Date of entry into force: 26 July 2012 Corrigendum 1 to Revision 5 of the Regulation Date of entry into force: 14 March 2012 06 series of amendments Date of entry into force.

2 27 January 2013 Uniform provisions concerning the measures to be taken against the emission of gaseous and particulate pollutants from compression-ignition engines and positive ignition engines for use in vehicles _____ UNITED NATIONS * Former title of the Agreement : Agreement Concerning the Adoption of Uniform Conditions of Approval and Reciprocal Recognition of Approval for Motor Vehicle Equipment and Parts, done at Geneva on 20 March 1958. E/ECE/324 E/ECE/TRANS/505 4 March 2013 E/ECE/324 E/ECE/TRANS/505 3 Regulation No. 49 Uniform provisions concerning the measures to be taken against the emission of gaseous and particulate pollutants from compression-ignition engines and positive ignition engines for use in vehicles Contents Page 1.

3 Scope .. 7 2. Definitions .. 7 3. Application for approval .. 12 4. Approval .. 15 5. Requirements and tests .. 23 6. Installation on the vehicle .. 27 7. Engine family .. 28 8. Conformity of production .. 28 9. Conformity of in-service vehicles/engines .. 32 10. Penalties for non-conformity of production .. 36 11. Modification and extension of approval of the approved type .. 37 12. Production definitively discontinued .. 37 13. Transitional provisions .. 37 14. Names and addresses of Technical Services responsible for conducting approval tests and of Type Approval Authorities.

4 39 Appendix 1 - Procedure for production conformity testing when standard deviation is satisfactory .. 40 Appendix 2 - Procedure for production conformity testing when standard deviation is unsatisfactory or unavailable .. 42 Appendix 3 - Procedure for production conformity testing at manufacturer's request .. 44 Appendix 4 - .. Summary of approval process for natural gas and LPG fuelled engines 46E/ECE/324 E/ECE/TRANS/505 4 Annexes 1 Models of information document .. 48 Appendix to information document .. 70 2A Communication concerning the approval of an engine type or family as a separate technical unit with regard to the emission of pollutants pursuant to Regulation No.

5 49, 06 series of amendments .. 73 Addendum to type approval communication No .. concerning the type approval of an engine type or family as a separate technical unit with regard to exhaust emissions pursuant to Regulation No. 49, 06 series of amendments .. 75 2B Communication concerning the approval of a vehicle type with an approved engine with regard to the emission of pollutants pursuant to Regulation No. 49, 06 series of amendments .. 79 2C Communication concerning the approval of a vehicle type with regard to the emission of pollutants pursuant to Regulation No.

6 49, 06 series of amendments .. 81 Addendum to type approval communication No .. concerning the type approval of a vehicle type with regard to the emission of pollutants pursuant to Regulation No. 49, 06 series of amendments .. 83 3 Arrangements of approval marks .. 87 4 Test procedure .. 91 Appendix 1 - WHTC engine dynamometer schedule .. 184 Appendix 2 - Measurement equipment .. 197 Appendix 3 - Statistics .. 212 Appendix 4 - Carbon flow check .. 215 Appendix 5 - Example of calculation procedure .. 217 Appendix 6 - Installation of auxiliaries and equipment for emissions test.

7 223 Appendix 7 - Procedure for the measurement of ammonia .. 225 Appendix 8 - Particle number emissions measurement equipment .. 229 5 Specifications of reference fuels .. 239 6 Emissions data required at type approval for roadworthiness purposes .. 248 7 Verifying the durability of engine systems .. 249 E/ECE/324 E/ECE/TRANS/505 5 8 Conformity of in-service engines or vehicles .. 257 Appendix 1 - Test procedure for vehicle emissions testing with portable emissions measurement systems .. 270 Appendix 2 - Portable measurement equipment .. 281 Appendix 3 - Calibration of portable measurement equipment.

8 282 Appendix 4 - Method to check the conformity of the ECU torque-signal .. 283 9A On-board diagnostic systems (OBD) .. 284 Appendix 1 - Assessment of the in-use performance of the on-board diagnostic system .. 289 Appendix 2 - Model of an OBD in-use performance compliance statement .. 294 9B Technical requirements for on-board diagnostic systems (OBD) .. 295 Appendix 1 - Approval of installation of OBD systems .. 333 Appendix 2 - Malfunctions - Illustration of the DTC status - Illustration of the MI and counters activation 334 Appendix 3 - Monitoring requirements.

9 340 Appendix 4 - Technical compliance report .. 347 Appendix 5 - Freeze frame and data stream information .. 354 Appendix 6 - Reference standard documents .. 357 Appendix 7 - Performance monitoring .. 358 Appendix 8 - Demonstration requirements in case of performance monitoring of a wall-flow diesel particulate filter .. 360 9C Technical requirements for assessing the in-use performance of on-board diagnostic systems (OBD) .. 361 Appendix 1 - Groups of monitors .. 368 10 Requirements to limit Off-Cycle Emissions (OCE) and in-use emissions .. 369 Appendix 1 - PEMS demonstration test at type approval.

10 379 11 Requirements to ensure the correct operation of NOx control measures .. 381 Appendix 1 - Demonstration requirements .. 392 Appendix 2 - Description of the driver warning and inducement activation and deactivation mechanisms .. 399 E/ECE/324 E/ECE/TRANS/505 6 Appendix 3 - Low level inducement torque reduction scheme .. 406 Appendix 4 - Demonstration of correct installation on a vehicle in the case of engines type-approved as a separate technical unit .. 407 Appendix 5 - Access to "NOx control information".. 408 Appendix 6 - Demonstration of the minimum acceptable reagent concentration CDmin.