Document ID: chunk:federal_register_of_legislation:F2021C00509:front:0:p24
Version: federal_register_of_legislation:F2021C00509
Segment Type: other
Provision Reference: 
Character Range: 71890–74969

sound level meter reading being taken as the test value.

           3.2.6. Results

           3.2.6.1. Readings, rounded off to the nearest decibel, shall be taken from the measuring instrument.
            Only those values obtained from three consecutive measurements which do not differ by more than 2 dB(A) respectively will be taken into consideration.

           3.2.6.2. The highest of these three values shall constitute the test result.
Annex 3 – Appendix

           Measuring positions for vehicles in motion

Fig. 1.
Measuring positions for stationary vehicles
           (examples)

           Fig 2.
Annex 4

CLASSIFICATION OF VEHICLES[15]/

           1. Category L

            (Not applicable for this Regulation)

           2. Category M - Power-driven vehicles having at least four wheels and used for the carriage of passengers

           2.1. CategoryM1: vehicles used for the carriage of passengers and comprising not more than eight seats in addition to the driver's seat.

           2.2. Category M2: Vehicles used for the carriage of passengers, comprising more than eight seats in addition to the driver's seat, and having a maximum mass not exceeding 5 tonnes.

           2.3. Category M3: Vehicles used for the carriage of passengers, comprising more than eight seats in addition to the driver's seat, and having a maximum mass exceeding 5 tonnes.

           2.4. Vehicles of categories M2 and M3 belong to one of the three following classes:

           2.4.1. Class I 'city-bus': a vehicle of this class has seats, and spaces for standing passengers.

           2.4.2. Class II 'interurban bus or coach': a vehicle of this class may have provision for standing passengers, but only in the gangway.

           2.4.3. Class III 'touring coach': a vehicle of this class has no provisions to carry standing passengers.

           2.5. Remarks

           2.5.1. 'Articulated bus or coach' is a vehicle which consists of two or more rigid sections which articulate relative to one another; the passenger compartments of each section intercommunicate so that passengers can move freely between them; the rigid sections are permanently connected so that they can only be separated by an operation involving facilities which are normally only found in a workshop.

           2.5.2. Articulated buses or coaches comprising two or more non-separable but articulated units shall be considered as single vehicles.

           2.5.3. In the case of a towing vehicle designed to be coupled to a semi-trailer (tractor for semi-trailer), the mass to be considered for classifying the vehicle is the mass of the tractor vehicle in running trim, increased by the mass corresponding to the maximum static vertical load transferred to the tractor vehicle by the semi-trailer and, where applicable, by the maximum mass of the tractor vehicle's own load.

           3. Category N - power-driven vehicles having at least four wheels and used for the carriage of goods.

           3.1. Category N1: Vehicles used for the carriage of goods and having a maximum