Document ID: chunk:federal_register_of_legislation:F2021C00509:reg:6:p2
Version: federal_register_of_legislation:F2021C00509
Segment Type: reg
Provision Reference: reg 6 (pt 2/15)
Character Range: 158333–161932

mopeds)
Annex 5 -  Test track specifications
Regulation No.63

UNIFORM PROVISIONS CONCERNING THE APPROVAL OF TWO-WHEELED MOPEDS WITH REGARD TO NOISE

           1. SCOPE

 This regulation applies to the noise made by two-wheeled mopeds.[23] [24]/

          2.                                               DEFINITIONS

          For the purposes of this Regulation

          2.1.                                         " Approval of a moped " means the approval of a moped type with regard to noise and the original exhaust system as a technical component of a two-wheeled type of moped.

          2.2.                                         "Moped type" means a category of mopeds which do not differ in such essential respects as:

          2.2.1.                                   The type of engine (two-stroke or four-stroke; with reciprocating or rotary pistons; number and capacity of cylinders; number and type of carburettors or injection systems; arrangement of valves; maximum net power and corresponding engine speed) .
          For rotary piston engines, the cubic capacity should be taken to be double of the volume of the chamber;

          2.2.2.                                   number and ratios of gears;

          2.2.3.                                   The number, type and arrangement of exhaust systems.

          2.2.3.1.                             "Exhaust or silencing system" means a complete set of components necessary for limiting the noise made by the engine of the moped and its exhaust;

          2.2.3.2.                             "Original exhaust or silencing system" means a system of the type fitted to the vehicle on approval or extension of approval. It may be original or a replacement.

          2.2.3.3.                             "Non-original exhaust or silencing system" means a system of a type different from that fitted to the vehicle on approval or extension of approval. It may be used only as a replacement exhaust or silencing system.

          2.3.                                         "exhaust or silencing system" means a complete set of components necessary for limiting the noise made by a moped and its exhaust;

          2.4.                                         "exhaust or silencing systems ofdifferent types" means exhaust or silencing systems which differ in such essential respects as;

    2.4.1.                                   that their components bear different trade names or marks;

          2.4.2. that the characteristics of the materials constituting a component are different or that the components differ in shape or size;

          2.4.3. that the operating principles of at least one component are different;

          2.4.4. that their components are assembled differently;

          2.5.                                         "Exhaust system component" means one of the individual constituent parts which, when assembled, constitute the exhaust system (e.g, exhaust pipes, silencer) and, where applicable, the intake device (air filter) .
          If the engine is fitted with an intake device (air filter and/or an intake noise absorber essential in order to ensure conformity with noise-level limits), this device shall be considered to be a component of the same importance as the exhaust system proper, and be included in the list referred to in paragraph 3.2.2. and carry the markings prescribed in paragraph 4.1.

  3.                                               APPLICATION FOR APPROVAL

          3.1.                                         The application for approval of