Applicants shall submit the deterioration factors of all regulated emissions for each engine family. The deterioration factors shall be handled in accordance with Appendix 3.For a diesel vehicle using the European Union (hereinafter referred to as the EU) NEDC or WLTC or WHTC driving cycle for the tests and required to submit the related regeneration factor Ki and evolution coefficient, Appendix 3 shall apply.Appendix 3：Provisions for determination of diesel vehicle and diesel engine deterioration factors, Ki factors, and evolution coefficients.pdf