In the case of vehicles of category N1 and vehicles of category M referred to in note 2 of Section 5.3.1.4, if the reference mass of the vehicle type for which extension of the approval is requested requires the use of a flywheel of equivalent inertia lower than that used for the vehicle type already approved, extension of the approval is granted if the masses of the pollutants obtained from the vehicle already approved are within the limits prescribed for the vehicle for which extension of the approval is requested'.
Če pri vozilih kategorije N 1 in vozilih kategorije M, navedenih v opombi 2 točke 5.3.1.4, referenčna masa tipa vozila, za katerega je zaprošena razširitev homologacije, zahteva uporabo vztrajnika, katerega ekvivalentna vztrajnost je nižja kot pri vztrajniku homologiranega tipa vozila, se razširitev homologacije podeli, če so količine onesnaževal, dobljenih iz že homologiranega vozila, znotraj mejnih vrednosti, predpisanih za vozilo, za katero je zaprošena razširitev homologacije."